Weather Report for 2020 by Month
January
January 2020 was warmer than average (6.04°C versus an average of 3.84), wetter than average (44.20 mm versus an average total of 42.34) and windier than average (a wind run of 3794 miles versus an average of 3318). The month was also the warmest January here, with the average temperature beating the previous high of 5.2°C set in 2016.
The new decade started with unseasonally mild weather through the month with just four days of sub-zero temperatures from the 18th to the 21st. The maximum temperature in the month was 12.8°C on the 14th at 15:53. The minimum temperature was -1.3°C at 06:23 on the 19th. The average temperature of 6.0°C was 2.0°C above the month mean. The average daily high temperature was 8.8°C, with the average low daily temperature being 3.6°C. These were 2.2°C and 2.0°C respectively above the mean. The warmest day was the 31st with an average temperature of 9.6°C, while the coolest day was the 19th with an average temperature of 2.2°C.
The average wind chill in the month was 4.5°C and the average dew point was also 4.5°C. The high dew point was 11.2°C at 18:06 on the 14th. There were 16.6 hours of sunshine in the month, with the sunniest day being the 19th with 2.88 hours of sun recorded.
Rainfall in the month was 44.2 millimetres recorded on 21 days. The yearly total was 130% of the average for the end of January. The wettest day was the 9th when 7.4 millimetres was recorded. The highest rain rate of 81.0 millimetres per hour was recorded at 18:30 on the 13th. No snow was recorded for the 10th successive month.
The highest barometric pressure of 1047.5 millibars was at 02:10 on the 20th, this was the highest ever recorded here, beating the previous highest of 1044.6 millibars set on February 7th 2012. The lowest pressure was 961.6 millibars at 15:29 on the 14th. The average pressure in the month was 1015.6 millibars. The highest humidity was 100% and the monthly average humidity was 90%. The lowest humidity was 64% at 14:40 on the 19th.
Wind speeds were higher than average, with the highest wind gust speed of 38 mph being recorded at 15:12 on the 16th. This was the highest gust speed since 41 mph was recorded on March 15th 2019. The maximum wind speed was 18 mph at 17:01 on the 14th. The wind run was 3793.9 miles, 134.3 miles above the January average. The average gust speed in the month was 7.3 mph, and the average wind speed was 5.2 mph. The predominant direction was west-south westerly (242°).
The maximum high solar radiation recorded at 12:35 on the 14th was 485 w/m². The average solar radiation for the month was 25 w/m². The highest U.V. Index was 0.5 recorded at 12:15 on the 29th, the first time since November 13th that a reading above 0.0 has been noted.
Monthly report for January 2020 (pdf)
February
February 2020 was warmer than average (5.67°C versus an average of 4.26), wetter than average (128.80 mm versus an average total of 35.20) and windier than average (a wind run of 5789 miles versus an average of 3076).
The average temperature for the month was the third highest for February at 5.7°C. This was 1.3°C above the Februsry mean. The highest temperature in the month was 12.8°C at 12:32 on the 9th, with the lowest being -0.9°C at 08:09 on the 6th. This was the only day in the month when the temperature fell below zero. The average daily high temperature was 9.1°C, 1.9°C above the mean. The average daily low temperature was 2.8°C, 1.1°C above the February mean. The warmest day was the 15th with an average temperature of 10.2°C, with the coolest day being the 11th with an average temperature of 3.1°C.
The average wind chill in the month was 3.2°C and the average dew point was 3.4°C. The high dew point was 11.1°C at 12:27 on the 9th. There were 50.2 hours of sunshine in the month, with the sunniest day being the 27th with 6.15 hours of sun recorded. Sunshine hours were 3.1 below the average for February.
Rainfall in the month was 128.8 millimetres recorded on a February record of 26 days. The yearly total of 175.4 millimetres was 198% of the average for the end of February. The wettest day was the 9th when 19.8 millimetres was recorded. The highest rain rate of 209.4 millimetres per hour was recorded at 13:02 on the 9th. This was the highest rain rate recorded here. The only snowfall recorded was on the 10th when 30 millimetres fell. This was the first recorded snowfall since 15 millimetres fell on March 10th 2019. This was the most snowfall in a day since 68 millimetres was recorded on March 18th 2018.
The highest barometric pressure of 1036.6 millibars was at 11:05 on the 5th. The lowest pressure was 975.3 millibars at 12:35 on the 9th. The average pressure in the month was 1005.0 millibars. The highest humidity was 100% and the monthly average humidity was 86%. The lowest humidity was 59% at 13:19 on the 29th.
Wind speeds were higher than average, with the highest wind gust speed of 47 mph being recorded at 08:58 on the 9th. This was the highest gust speed since 50 mph was recorded on February 4th 2017. The maximum wind speed was 26 mph at 13:18 on the 9th. The wind run was 5788.5 miles, 2191.4 miles above the February average, and a record for any month. The average gust speed in the month was 11.8 mph, and the average wind speed was 8.5 mph. The predominant direction was west-south westerly (252°).
The maximum high solar radiation recorded at 12:02 on the 26th was 768 w/m². The average solar radiation for the month was 55 w/m². The highest U.V. Index was 1.0 recorded at 13:00 on the 23rd, the highest since 1.1 was recorded on October 27th 2019.
Monthly report for February 2020 (pdf)
March
March 2020 was warmer than average (6.08°C versus an average of 5.97), drier than average (24.00 mm versus an average total of 44.32) and windier than average (a wind run of 3963 miles versus an average of 3250).
The maximum temperature in the month was 15.8°C, recorded at 15:51 on the 25th. This was the highest temperature since 16.2°C was recorded on September 30th 2019. The minimum temperature was -1.9°C recorded at 06:46 on the 6th. This was the lowest temperature since -4.4°C was recorded on February 3rd 2019. The average temperature in the month was 6.1°C, The average daily high temperature was 10.3°C, and the average daily low temperature was 2.4°C. The warmest day was the 10th with an average temperature of 10.7°C, with the coolest day being the 5th with an average temperature of 2.8°C.
The average wind chill in the month was 4.6°C and the average dew point was 2.7°C. The high dew point was 11.1°C at 12:25 on the 10th. There were 142.7 hours of sunshine in the month, with the sunniest day being the 26th with 9.41 hours of sun recorded. Sunshine hours were 29.6 above the average for March, and the sunniest March recorded here.
Rainfall in the month was 24.0 millimetres, the driest March since 2012. Rainfall was recorded on 14 days, with no snow recorded. The yearly totel of reainfall was 197.0 millimetres, 150% of normal for the end of March. The wettest day was the 9th when 5.0 millimetres was recorded. The highest rain rate of 21.4 millimetres per hour was recorded at 06:05 on the 8th.
The highest barometric pressure of 1041.9 millibars was at 20:46 on the 29th. The lowest pressure was 978.4 millibars on the 1st. The average pressure in the month was 1014.8 millibars. The highest humidity was 100% and the monthly average humidity was 80%. The lowest humidity was 31% at 14:51 on the 25th.
Wind speeds were average, with the highest wind gust speed of 38 mph being recorded at 23:31 on the 11th. The maximum wind speed was 22 mph at 23:35 on the 11th. The wind run was 3963.5 miles, 392.5 miles above the March average. The average gust speed in the month was 7.8 mph, and the average wind speed was 5.4 mph. The predominant direction was southerly (180°).
The maximum high solar radiation recorded at 12:08 on the 29th was 988 w/m². The average solar radiation for the month was 11 w/m². The highest U.V. Index was 2.8, the highest since 2.9 was recorded on September 23rd 2019.
Monthly report for March 2020 (pdf)
April
April 2020 was warmer than average (10.04°C versus an average of 8.56), drier than average (14.40 mm versus an average total of 36.84) and calmer than average (a wind run of 2552 miles versus an average of 2817).
The maximum temperature in the month was 22.3°C recorded at 15:12 on the 11th, the highest temperature since 27.8°C was recorded on August 27th 2019. The minimum temperature was 0.0°C recorded at 08:22 on the 14th. The average temperature in the month was 10.0°C. The average daily high temperature was 15.4°C, and the average daily low temperature was 5.2°C. The warmest day was the 11th with an average temperature of 15.6°C, with the coolest day being the 1st with an average temperature of 6.0°C.
The average wind chill in the month was 9.5°C and the average dew point was 5.1°C. The high dew point was 13.4°C at 16:57 on the 11th. There were 222.9 hours of sunshine in the month, with the sunniest day being the 16th with 10.43 hours of sun recorded. Sunshine hours were 40.9 above the average for April, and the sunniest April recorded here.
Rainfall in the month was 14.4 millimetres recorded on 9 days, with no snow recorded. The yearly totel of rainfall was 213.4 millimetres, 130% of normal for the end of April. The wettest day was the 28th when 5.8 millimetres was recorded. The highest rain rate of 14.4 millimetres per hour was recorded at 01:19 on the 13th.
The highest barometric pressure of 1030.5 millibars was at 00:49 on the 14th. The lowest pressure was 988.7 millibars recorded at 15:54 on the 30th. The average pressure in the month was 1016.8 millibars. The highest humidity was 99% and the monthly average humidity was 73%. The lowest humidity was 27% at 18:20 on the 15th, the lowest of 2020 so far.
Wind speeds were below average, with the highest wind gust speed of 25 mph being recorded at 16:26 on the 2nd. The maximum wind speed was 14 mph at 15:25 on the 21st. The wind run was 2551.6 miles, 476.2 miles below the April average and a low for the month. The average gust speed in the month was 5.5 mph, and the average wind speed was 3.6 mph. The predominant direction was south south-easterly (155°).
The maximum high solar radiation recorded at 13:50 on the 13th was 1125 w/m², the highest since 1144w/m² was recorded on July 18th 2019.. The average solar radiation for the month was 187 w/m². The highest U.V. Index was 4.0, the highest since 4.1 was recorded on September 15th 2019.
Monthly report for April 2020 (pdf)
May
May 2020 was warmer than average (12.46 versus an average of 11.45), drier than average (6.60 mm versus an average total of 42.06) and calmer than average (a wind run of 2501 miles versus an average of 2664).
The maximum temperature in the month was 25.7°C recorded at 17:04 on the 20th. This was ghe highest temperature since 27.8°C was recorded on August 27th 2019. The minimum temperature was -0.6°C, the lowest temperature ever recorded in May. There were two frost days in the month, the first time sub-zero temperatures had been recorded in May. The average temperature in the month was 12.5°C. The average daily high temperature was 18.3°C, and the average daily low temperature was 6.6°C. The warmest day was the 20th with an average temperature of 18.6°C, with the coolest day being the 11th with an average temperature of 5.6°C.
The average wind chill in the month was 12.1°C and the average dew point was 7.0°C. The high dew point was 16.7°C recorded at 11:26 on the 20th. There were 281.9 hours of sunshine, a May record beating the previous best by 13.3 hours. This was 51.2 hours above the May average. The sunniest day was the 29th with 12.2 hours.
Rainfall in the month was 6.6 millimetres recorded on 6 days, with no snow recorded. This was the driest May recorded here, the second driest month here, beaten only by the 6.0 millimetres in April 2017. The yearly totel of rainfall was 220.0 millimetres, 109% of normal for the end of May. The wettest day was the 22nd when 2.8 millimetres was recorded. The highest rain rate of 8.2 millimetres per hour was recorded at 21:50 on the 1st.
The highest barometric pressure of 1036.2 millibars was at 22:32 on the 27th, a record for May. The lowest pressure was 991.5 millibars recorded at 02:45 on the 1st. The average pressure in the month was 1020.6 millibars. The highest humidity was 95% and the monthly average humidity was 72%, a low for May. The lowest humidity was 32% at 15:18 on the 25th.
Wind speeds were below average, with the highest wind gust speed of 32 mph being recorded at 17:15 on the 22nd. The maximum wind speed was 18 mph at 17:47 on the 22nd. The wind run was 2499.7 miles, 410.2 miles below the May average. The average gust speed in the month was 5.3 mph, and the average wind speed was 3.4 mph. The predominant direction was southerly (191°).
The maximum high solar radiation recorded at 12:38 on the 13th was 1267 w/m², the highest since 1294 w/m² was recorded on June 20th 2018. The average solar radiation for the month was 27 w/m². The highest U.V. Index was 5.9, the highest since 6.2 was recorded on July 22nd 2019.
Monthly report for May 2020 (pdf)
June
June 2020 was warmer than average (14.57°C versus an average of 14.30), wetter than average (77.60 mm versus an average total of 57.72) and windier than average (a wind run of 2431 miles versus an average of 2200).
The maximum temperature in the month was 28.8°C, recorded at 16:08 on the 24th, the highest temperature since 30.0°C was recorded on August 25th 2019. The minimum in the month was 5.9°C, recorded at 04:50 on the 9th. The month average temperature was 14.6°C. The average daily high temperature was 19.4°C, with the average daily low being 10.4°C. The warmest day was the 24th with an average temperature of 22.7°C, while the coolest day was the 5th, with an average temperature of 9.6°C.
The average wind chill in the month was 14.3°C and the average dew point was 11.0°C. The high dew point was 21.7°C recorded at 15:32 on the 26th. There were 183.8 hours of sunshine, well below the June average of 206.8 hours. The sunniest day was the 25th with 11.9 hours.
Rainfall in the month totalled 77.6 millimetres, well above the June average of 59.2 millimetres. Rainfall was recorded on 20 days, with no snow. The wettest day was the 17th with 14.4 millimetres. The highest rain rate was 268.0 millimetres per hour, an all-time high, during a storm at 17:48 on the 17th. The record should be taken with some uncertainty as it is very high for the area.
The highest barometric pressure of 1024.9 millibars was at 00:03 on the 1st. The lowest pressure was 991.2 millibars recorded at 08:08 on the 6th. The average pressure in the month was 1010.9 millibars. The highest humidity was 98% and the monthly average humidity was 81%. The lowest humidity was 27% at 18:03 on the 2nd, equalling the low for June.
Wind speeds were higher than average, with the highest wind gust speed of 28 mph being recorded at 15:58 on the 28th. The maximum wind speed was 15 mph at 14:14 on the 28th. The wind run was 2430.9 miles, 20.7 miles above the June average. The average gust speed in the month was 5.5 mph, and the average wind speed was 3.4 mph. The predominant direction was south south easterly (151°).
The maximum high solar radiation recorded at 13:21 on the 20th was 1150 w/m². The average solar radiation for the month was 174 w/m². The highest U.V. Index was 6.1, recorded on the 22nd at 12:53.
Monthly report for June 2020 (pdf)
July
July 2020 was cooler than average (15.09°C versus an average of 16.49), drier than average (41.80 mm versus an average total of 48.58) and windier than average (a wind run of 2527 miles versus an average of 2034).
The maximum temperature in the month, recorded at 17:24 on the 31st, was 33.7°C, the second highest temperature ever recorded at Bracken House, beaten only by the 34.1°C recorded on 15th July 2019. The minimum temperature in the month was 6.0°C recorded at 05:29 on the 12th. The average in the month was 15.1°C. The average daily high temperature was 19.2°C, with the average daily low being 11.3°C. The warmest day was the 31st with an average temperature of 23.6°C. The coldest day was the 7th with an average temperature of 12.2°C.
The average wind chill in the month was 15.1°C and the average dew point was 11.8°C. The high dew point was 20.2°C recorded at 18:23 on the 31st. There were 195.1 hours of sunshine, well below the July average of 219.7 hours. The sunniest day was the 12th with 10.6 hours.
Rainfall in the month totalled 41.8 millimetres, below the July average of 49.5 millimetres. Rainfall was recorded on 18 days, with no snow. The wettest day was the 7th with 7.8 millimetres. The highest rain rate was 49.6 millimetres per hour,.
The highest barometric pressure of 1028.2 millibars was at 08:28 on the 12th. The lowest pressure was 996.9 millibars recorded at 15:45 on the 27th. The average pressure in the month was 1013.9 millibars. The highest humidity was 96% and the monthly average humidity was 82%. The lowest humidity was 34% at 15:44 on the 31st,.
Wind speeds were above average, with the highest wind gust speed of 27 mph being recorded at 17:05 on the 5th. The maximum wind speed was 16 mph at 17:42 on the 5th. The wind run was 2526.9 miles, 223 miles above the July average. The average gust speed in the month was 5.4 mph, and the average wind speed was 3.5 mph. The predominant direction was west south westerly (253°).
The maximum high solar radiation recorded at 12:34 on the 11th was 1252 w/m². The average solar radiation for the month was 169 w/m². The highest U.V. Index was 6.8, the highest since 7.0 was recorded on August 3rd 2018.
Monthly report for July 2020 (pdf)
August
August 2020 was warmer than average (16.75°C versus an average of 15.61), wetter than average (70.20 mm versus an average total of 51.22) and windier than average (a wind run of 2424 miles versus an average of 2310).
The month was a tale of two halves - the first half being hot and dry with the second half being cold and damp. The highest temperature was on the 12th when the thermometer reached 32.0°C at 15:45. This was the highest August temperature ever recorded here and the third highest all-time temperature. The day before, the temperature had reached 31.6°C, beating the 30.0°C set on August 25th 2019. The lowest temperature was 7.0°C recorded at 07:05 on the 31st. The average monthly temperature was 16.8°C, 1.1°C above the August average and the highest average ever for the month. The average daily high temperature was 21.5°C, with the average daily low being 13.2°C, both August records. The warmest day was the 12th with an average temperature of 24.5°C and the coldest day was the 29th with an average temperature of 10.9°C.
The average wind chill in the month was 16.7°C and the average dew point was 13.6°C, a record for August. The high dew point was 21.8°C recorded at 14:23 on the 11th, also an August record. There were 180.75 hours of sunshine, 10.3 hours below the August average. The sunniest day was the 8th with 10.7 hours
Rainfall in the month totalled 70.2 millimetres, well above the August average of 52.9 millimetres. Rainfall was recorded on 16 days, with no snow. The yearly total is now 407.6 millimetres, 113% of the normal for the end of August. The wettest day was the 25th with 19.8 millimetres of rain being recorded, equalling the wettest day of 2020 set on February 9th. The highest rain rate was 33.8 millimetres per hour, recorded at 05:53 on the 25th.
Wind speeds were about average, with the highest wind gust speed of 45 mph being recorded at 16:59 on the 25th, the second highest gust of the year, beaten only by the 47 mph set on February 9th.. The maximum wind speed was 19 mph at 17:02 on the 25th. The wind run was 2423.9 miles, 61 miles below the August average. The average gust speed in the month was 5.4 mph, and the average wind speed was 3.3 mph. The predominant direction was southerly (172°).
The maximum high solar radiation recorded at 12:40 on the 2nd was 1190 w/m². The average solar radiation for the month was 154 w/m². The highest U.V. Index was 5.8.
Monthly report for August 2020 (pdf)
September
September 2020 was warmer than average (13.62°C versus an average of 13.37), drier than average (15.20 mm versus an average total of 43.80) and calmer than average (a wind run of 2079 miles versus an average of 2218).
The month was very warm until the last third when the temperatures tailed off. The highest temperature was 27.7°C recorded at 16:40 on the 15th. This was the third highest September temperature recorded here, and the highest September temperature since 28.4°C was recorded on September 13th 2016. The lowest temperature was recorded at 06:47 on the 28th when the thermometre fell to 2.3°C, the lowest September temperature ever recorded here. The average temperature for the month was 13.6°C, 0.2°C below the September average.. The average daily high temperature was 18.5°C, with the average daily low being 9.1°C. The warmest day was the 15th with an average temperature of 20.1°C and the coldest day was the 24th with an average temperature of 8.9°C.
The average wind chill in the month was 13.5°C and the average dew point was 10.4°C. The high dew point was 19.7°C recorded at 13:38 on the 8th. There were 159.48 hours of sunshine, 25.7 hours below the September average. The sunniest day was the 14th with 8.73 hours.
Rainfall in the month totalled 15.2 millimetres, second lowest only to the 10.0 millimetres recorded in 2014. Rainfall was recorded on 10 days, with no snow. The yearly total is now 425.6 millimetres, 104% of the normal for the end of September. The wettest day was the 30th with 3.0 millimetres of rain being recorded. The highest rain rate was 9.6 millimetres per hour, recorded at 00:12 on the 29th.
Wind speeds were below average, with the highest wind gust speed of 24 mph being recorded at 16:27 on the 11th.. The maximum wind speed was 11 mph at 15:44 on the 25th. The wind run was 2078.5 miles, 310.7 miles below the September average. The average gust speed in the month was 4.7 mph, and the average wind speed was 2.9 mph. The predominant direction was south south-westerly (208°).
The maximum high solar radiation recorded at 13:51 on the 3rd was 990 w/m². The average solar radiation for the month was 130 w/m². The highest U.V. Index was 4.4.
Monthly report for September 2020 (pdf)
October
October 2020 was cooler than average (9.65°C versus an average of 10.53), wetter than average (53.20 mm versus an average total of 52.16) and calmer than average (a wind run of 2559 miles versus an average of 2665).
October was a very average month weather-wise, with little of note. The highest temperature was 16.7°C recorded at 14:47 on the 20th, 2.3°C below the October average high. The lowest temperature was 3.2°C recorded at 08:00 on the 13th. There were no frost days. The average for the month was 9.7°C, 0.8°C below the October mean. The average daily high was 13.0°C, 0.8°C below the average. The average daily low was 6.5°C, 0.9°C below the mean.The warmest day was the 21st with an average temperature of 13.2°C, whilst the coldest day was the 27th and 28th with an average temperature of 7.4°C
The average wind chill in the month was 9.1°C with the average dew point being 8.1°C. The high dew point was 13.9°C recorded at 11:34 on the 30th. There were 37.6 hours of sunshine, 22.1 hours below the October average. The sunniest day was the 12th with 3.27 hours.
Rainfall in the month totalled 53.2 millimetres, 2.0 millimetres above the October average. Rainfall was recorded on 25 days with no snow.. The yearly total is now 479.6 millimetres, 104% of the normal for the end of October. The wettest day was the 9th with 9.8 millimetres of rain being recorded. The highest rain rate was 23.0 millimetres per hour, recorded at 16:08 on the 24th.
Wind speeds were below average, with the highest wind gust speed of 31 mph being recorded at 10:22 on the 31st. The maximum wind speed was 16 mph at 14:13 on the 31st. The wind run was 2558.8 miles, 310.3 miles below the October average. The average gust speed in the month was 5.3 mph, and the average wind speed was 3.5 mph. The predominant direction was south south-westerly (198°).
The highest barometric pressure of 1026.9 millibars was at 22:42 on the 15th. The lowest pressure was 975.4 millibars, the lowest since 975.3 millibars was recorded on February 9th 2020, and a record October low, beating the 976.1 millibars set on October 31st 2012. The average pressure in the month was 1005.5 millibars. The highest humidity was 99% and the monthly average humidity was 90%. The lowest humidity was 65% at 17:14 on the 1st.
The maximum high solar radiation recorded at 12:38 on the 10th was 782 w/m². The average solar radiation for the month was 50 w/m². The highest U.V. Index was 2.0 at 12:36 on the 7th.
Monthly report for October 2020 (pdf)
November
November 2020 was warmer than average (7.98°C versus an average of 6.80), drier than average (29.60 mm versus an average total of 65.93) and windier than average (a wind run of 3027 miles versus an average of 2756).
The month started off on a very warm note with the temperature reaching 16.8°C at 20:00 on the 1st, the highest November temperature ever recorded here, beating the 16.3°C set on November 10th 2015. The lowest temperature was 0.3°C recorded at 07:23 on the 7th, the lowest temperature of the autumn season. The average temperature ijn the month was 8.0°C, 0.9°C above the November mean.The maximum temperature of 8.4°C recorded at 03:53 on the 19th was the lowest daily maximum since 8.1°C was recorded on March 30th 2020. The average daily high temperature was 10.5°C, with the average daily low being 4.8°C. The warmest day was the 1st with an average temperature of 12.7°C and the coldest day was the 26th with an average temperature of 4.0°C.
The average wind chill in the month was 7.1°C with the average dew point being 6.5°C. The high dew point was 15.0°C recorded at 20:55 on the 1st. There were 23.6 hours of sunshine, 0.5 hours below the November average. The sunniest day was the 6th with 3.15 hours.
Rainfall in the month totalled 29.6 millimetres, 33.2 millimetres below the November average. Rainfall was recorded on 25 days with no snow.. The yearly total is now 508.6 millimetres, 98% of the normal for the end of November. The wettest day was the 2nd with 5.2 millimetres of rain being recorded. The highest rain rate was 94.4 millimetres per hour, recorded at 06:37 on the 2nd.
Wind speeds were slightly above average, with the highest wind gust speed of 32 mph being recorded at 22:38 on the 1st. The maximum wind speed was 16 mph at 20:07 on the 2nd. The wind run was 3026.6 miles, 28.7 miles above the November average. The average gust speed in the month was 6.1 mph, and the average wind speed was 4.3 mph. The predominant direction was south westerly (217°).
The highest barometric pressure of 1038.2 millibars was at 23:48 on the 4th. The lowest pressure was 986.1 millibars recorded at 09:16 on the 15th. The average pressure in the month was 1016.0 millibars. The highest humidity was 100% and the monthly average humidity was 91%. The lowest humidity was 64% at 14:06 on the 27th.
The maximum high solar radiation recorded at 12:35 on the 4th was 538 w/m². The average solar radiation for the month was 32 w/m². The highest U.V. Index was 0.9 at 12:12 on the 1st.
Monthly report for November 2020 (pdf)
December
December 2020 was cooler than average (4.48°C versus an average of 4.85), wetter than average (93.40 mm versus an average total of 51.56) and calmer than average (a wind run of 2657 miles versus an average of 3353).
Temperatures in December were almost average, despite a cold snap with snow towards the end of the month. The highest temperature was 12.2°C recorded at 16:17 on the 18th. The lowest temperature was -3.7°C recorded at 04:18 on the last day, one of six sub-sero temperatures in the month. This was the lowest temperature here since -4.4°C was recorded on February 3rd 2019. The average temperature in the month was 10.2°C, 0.1°C below the December record. The average daily high temperature was 6.9°C and the average daily low temperature was 2.1°C. The warmest day was the 18th with an average temperature of 11.2°C and the coldest day was the 31st with an average temperature of -1.2°C.
The average wind chill in the month was 3.4°C with the average dew point being also 3.4°C. The high dew point was 11.2°C recorded at 16:03 on the 18th. There were 2.97 hours of sunshine, 0.5 hours below the December average. The sunniest day was the 6th with 3.15 hours, almost half of the December average of 5.7 hours. The sunniest day was the 1st with 1.57 hours.
Rainfall in the month totalled 93.4 millimetres, 38.4 millimetres above the December average, and a high for the month. Rainfall was recorded on 28 days with 17.0 millimetres of snow recorded, 15.0 millimetres on the 29th. This was the first snowfall since February 10th 2019. The yearly rainfall total iwas 599.0 millimetres, 105% of the normal for the year. The wettest day was the 23rd with 17.0 millimetres of rain being recorded. The highest rain rate was 24.0 millimetres per hour, recorded at 00:19 on the 18th.
Wind speeds were below average, with the highest wind gust speed of 32 mph being recorded at 22:39 on the 26th. The maximum wind speed was 16 mph at 00:17 on the 27th. The wind run was 2655.4 miles, well below the December avreage of 3744 miles.. The average gust speed in the month was 5.4 mph, and the average wind speed was 3.61 mph. The predominant direction was south westerly (213°).
The highest barometric pressure of 1031.5 millibars was at 09:39 on the 25th. The lowest pressure was 968.3 millibars recorded at 03:33 on the 28th], the lowest pressure since 964.9 millibars was recorded at 00:15 on February 15th 2014, and the second lowest ever here. The average pressure in the month was 1000.1 millibars. The highest humidity was 100% and the monthly average humidity was 93%. The lowest humidity was 72% at 14:19 on the 1st.
The maximum high solar radiation recorded at 11:52 on the 19th was 343 w/m². The average solar radiation for the month was 18 w/m². The U.V. Index was 0.0 for the month.