Weather Report for 2018 by Month

January

The first month of 2018 was warmer and wetter than average, with higher than normal winds. After two months of below average temperatures, the New Year started off well. After three drier than average months, the trend was reversed with a much wetter start to 2018.

The warmest temperature of January was 13.1°C recorded at 14:03 on the 28th, with the coldest being -2.1°C recorded at 08:00 on the 8th. The average temperature for the month was 4.4°C, 0.6°C above the mean. The average daily maximum temperature was 7.0°C, 0.7°C above the mean, while the average daily minimum was 2.0°C, 0.6°C above the mean. The warmest day was the 28th with an average temperature of 9.9°C. The coldest day was the 8th with an average temperature of 0.5°C. There were 5 frost days in the month.

Between 08:00 and 08:50 on the 24th, the temperature fell from 12.3°C to 8.0°C, a fall of 4.3°C in 50 minutes. At 08:00, the temperature was 12.3°C, but by 11:05, the temperature had fallen to 6.7°C. This was caused by a cold front passing over the area. This front brought a spell of torrential rain and high winds. At 07:33, a wind gust of 33 mph was recorded. At 08:02, a rain rate of 185.8 millimetres per hour was recorded.

The highest dew point was 10.9°C recorded at 14:50 on the 28th, with the monthly average dew point being 2.8°C, 0.5°C above the mean. The lowest dew point was -3.7°C at 08:00 on the 8th. The high wind chill was 11.4°C recorded at 14:50 on the 28th, with the low wind chill being -4.8°C at 04:39 on the 17th. The average wind chill in the month was 2.5°C. There were 15.93 hours of sunshine in January.

Rainfall in the month totalled 59.4 millimetres, 16.4 millimetres above the January average. Rainfall was recorded on 22 days, with the wettest day being the 5th when 8.4 millimetres was recorded. Snowfall was recorded on two days and totalled 21 millimetres, 20 of which fell on the 21st. The highest rain rate was 185.8 millimetres per hour recorded at 08:02 on the 24th, as a cold front passed over.. The rainfall total is 140% of what is normally expected by the end of January.

The highest barometric pressure was 1030.8 millibars at 11:34 on the 7th. The lowest barometric pressure was 980.9 millibars at 02:52 on the 3rd. The average pressure in the month was 1007.7 millibars. The highest humidity was 100% and the month average humidity was 90%. The lowest humidity was 69% at 13:16 on the 31st.

The highest wind gust in the month was 43 mph recorded at 05:39 on the 18th, the strongest gust since 50 mph was recorded on February 23rd 2017. The average gust speed in the month was 8.2 mph, mean 7.7 mph. The average wind speed was 5.6 mph, mean 5.1 mph. The maximum wind speed was 27 mph at 05:05 on the 18th, 2.6 mph above the mean. The total wind run was 4109.8 miles, well above the January average of 3755.0 miles, with the predominate direction being 199°.

The maximum high solar radiation recorded at 14:00 on the 28th was 504 w/m², the highest since 512 w/m² was recorded on November 5th 2017. The average solar radiation for the month was 25 w/m². The highest U.V. Index was 0.7 set at 13:00 on the 28th.

Weather Underground History | Weather Underground Graph | Monthly report (pdf)

February

February 2018 was much colder than average, with only February 2010 being colder. Rainfall was lower than average, but snowfall was higher. Winds were lighter than average.

The maximum temperature in the month was 10.0°C at 13:48 on the 19th. Only 2010, with a maximum of 8.4°C has seen a lower monthly maximum. The February average maximum is 11.9°C. The minimum temperature in the month of -6.3°C at 02:09 on the 28th, was the lowest since -7.2°C was recorded on February 11th 2012, the second lowest February monthly minimum recorded here. The February average minimum is -3.3°C. The average temperature in the month was 2.3°C, well below the mean of 4.0°C.

The coldest day was the 28th with an average temperature of -5.0°C. The warmest day was the 19th with an average temperature of 8.2°C. On the 28th, the maximum temperature of -2.9°C was the lowest daily maximum temperature ever recorded here, beating the previous lowest of -2.8°C set on December 18th 2010. There were 17 frost days in the month, a record for February.

The highest dew point was 9.1°C at 14:48 on the 19th, with the monthly average dew point being 0.1°C, a February low and 2.0°C below the mean. The lowest dew point was -8.8°C at 18:19 on the 28th, equalling the previous low set in 2012. The high wind chill was 9.8°C set at 17:32 on the 19th, with the low wind chill being -12.4°C set at 22:38 on the 28th. The average wind chill for the month was 0.6°C.

Rainfall for the month totalled 28.4 millimetres, with the wettest day being the 14th when 6.8 millimetres was recorded. This was 7.4 millimetres below the February mean. Rainfall was recorded on 18 days. Snowfall in the month totalled 59 millimetres, 50 millimetres of which fell on the 28th. Measurable snow was noted on 6 days. The highest rain rate was 7.8 millimetres per hour at 15:18 on the 14th, a February low. The rainfall total is 110% of what is expected by the end of February. 87.8 millimetres of rain have now fallen in 2018.

The highest barometric pressure was 1033.6 millibars at 11:22 on the 26th. The lowest barometric pressure was 989.7 millibars at 23:52 on the 10th. The average pressure in the month was 1016.1 millibars. The highest humidity was 100% and the month average humidity was 86%. The lowest humidity was 52% at 15:11 on the 15th.

The highest wind gust in the month was 32 mph recorded at 01:01 on the 11th. The average gust speed in the month was 6.7 mph, mean 7.9 mph. The average wind speed was 4.4 mph, mean 5.1 mph. The maximum wind speed was 19 mph at 01:06 on the 11th, 5.3 mph below the mean. The total wind run was 2878.9 miles, well above the February average of 3447.6 miles, with the predominate direction being 172°.

The maximum high solar radiation recorded at 12:10 on the 27th was 761 w/m², the highest since 766 w/m² was recorded on October 2nd 2017. The average solar radiation for the month was 57 w/m². The highest U.V. Index was 1.2 set at 13:12 on the 25th, the highest since 1.4 was recorded on October 17th 2017.

Weather Underground History | Weather Underground Graph | Monthly report (pdf)

March

March 2018 was the wettest ever March here. It was also the wettest month since January 2014. Temperatures were well below the average for the month. Snowfall was the highest since 2013.

The maximum temperature in the month was 12.3°C recorded at 15:00 on the 10th, 3.0°C below the average monthly maximum for March. The minimum temperature was -6.1°C recorded at 00:56 on the 1st, the lowest temperature recorded here in March. Also on the 1st, the maximum temperature of -2.1°C recorded at 23:00 was the lowest ever maximum temperature recorded in March. The daily average temperature on the 1st was -3.8°C. The average temperature for the month was 4.3°C, 1.5°C below the mean. The average daily maximum temperature was 9.3°C, with the average daily minimum temperature being 1.6°C. The warmest day was the 10th with an average of 9.3°C, with the coldest day being the 1st with an average temperature of -3.7°C. There were 10 frost days in the month.

The highest dew point was 10.9°C at 15:00 on the 10th, with the minimum dew point being -7.9°C at 00:56 on the 1st. The monthly average dew point was 2.1°C. The high wind chill was 12.1°C at 15:07 on the 10th, with the low wind chill being -11.2°C on the 1st. The average monthly wind chill was 2.3°C. There were 80.75 hours of sunshine, with the sunniest day being the 21st when 6.97 hours was recorded.

Rainfall in the month was 79.0 millimetres, a record for March and 39.0 millimetres above the average for the month. This was the wettest month since 90.4 millimetres was recorded in January 2014. Rainfall was noted on 23 days, with the wettest day being the 12th when 13.0 millimetres was recorded. The highest rain rate was 25.0 millimetres per hour recorded at 17:51 on the 29th. The yearly rainfall total is 145% of what is normally expected by the end of March. Snow was recorded on five days, totalling 108 millimetres. 68 millimetres of this total fell on the 18th.

The highest barometric pressure was 1032.5 millibars at 21:07 on the 20th. The lowest barometric pressure was 981.9 millibars at 04:36 on the 6th. The average pressure in the month was 1001.4 millibars. The highest humidity was 100% and the monthly average humidity was 86%. The lowest humidity was 48% at 16:50 on the 25th.

The highest wind gust in the month was 34 mph recorded at 10:11 on the 2nd.. The average gust speed in the month was 7.9 mph, mean 7.2 mph. The average wind speed was 5.3 mph, mean 4.6 mph. The maximum wind speed was 17 mph at 12:08 on the 2nd, 4.5 mph below the mean. The total wind run was 3878.0 miles, well above the March average of 3425.9 miles, with the predominate direction being 149°.

The maximum high solar radiation recorded at 13:11 on the 25th was 881 w/m², the highest since 909 w/m² was recorded on September 14th 2017. The average solar radiation for the month was 80 w/m². The highest U.V. Index was 2.1 set at 12:08 on the 29th, the highest since 2.2 was recorded on October 5th 2017.

Weather Underground History | Weather Underground Graph | Monthly report (pdf)

April

April 2018 was warmer and wetter than normal. This was the third warmest April recorded here and the second wettest. Winds were about average.

At 18:36 on the 19th, the maximum temperature reached 24.8°C, the highest temperature since 25.0°C was recorded on July 17th 2017. This was the warmest April day ever recorded here, beating the previous highest of 24.4°C recorded on April 23rd 2011. The minimum temperature in the month was 0.4°C recorded at 07:00 on the 2nd. The average temperature for the month was 9.1°C, 0.6°C above the monthly mean. The average daily maximum temperature was 12.5°C, with the average daily minimum temperature being 6.0°C. The warmest day was the 19th with an average of 18.4°C, with the coldest day being the 1st with an average temperature of 3.1°C. There were no frost days in the month.

The highest dew point was 15.6°C at 17:47 on the 21st, with the minimum dew point being -1.8°C at 17:22 on the 5th. The monthly average dew point was 6.4°C. The high wind chill was 24.8°C at 18:36 on the 19th, with the low wind chill being -3.8°C at 06:47 on the 2nd. The average monthly wind chill was 8.2°C. There were 128.66 hours of sunshine, with the sunniest day being the 19th when 10.41 hours was recorded.

Rainfall in the month was 70.4 millimetres, the second highest April total, beaten only by a whopping 151.8 millimetres recorded in 2012. Rainfall was recorded on 18 days, with the wettest day being the 2nd when 21.0 millimetres was recorded. The highest rain rate was 57.6 millimetres recorded at 17:34 on the 25th. The yearly rainfall total is now 237.4 millimetres, 150% of what is normally expected by the end of April. The only snow recorded in the month was the 5.0 millimetres recorded on the 2nd.

The highest barometric pressure was 1025.5 millibars at 12:17 on the 18th. This was the lowest maximum pressure recorded here in April. The lowest barometric pressure was 988.7 millibars at 16:33 on the 4th. The average pressure in the month was 1009.0 millibars. The highest humidity was 100% and the monthly average humidity was 84%. The lowest humidity was 43% at 17:22 on the 5th, equalling the highest monthly low for April.

The highest wind gust in the month was 28 mph recorded at 14:05 on the 26th.. The average gust speed in the month was 6.7 mph, mean 6.9 mph. The average wind speed was 4.3 mph, mean 4.3 mph. The maximum wind speed was 14 mph at 13:16 on the 25th, 5.5 mph below the mean. The total wind run was 3045.1 miles, with the predominate direction being 158°.

The maximum high solar radiation recorded at 14:32 on the 5th was 1032 w/m², the highest since 1044 w/m² was recorded on August 19th 2017. The average solar radiation for the month was 118 w/m². The highest U.V. Index was 4.1 set at 13:00 on the 20th, the highest since 4.6 was recorded on September 4th 2017.

Weather Underground History | Weather Underground Graph | Monthly report (pdf)

May

May was warmer than average (13.3°C versus an average of 11.5°C), with rainfall equal to the average (43.80 mm) and winds calmer than average (a wind run of 1898 miles versus an average of 2825 miles).

The maximum temperature in the month was 25.4°C at 16:17 on the 7th, the highest temperature since 27.3°C was recorded on July 6th 2017. It was also the highest May temperature since 25.7°C was recorded on May 24th 2012. The minimum temperature was 1.3°C at 02:25 on the 1st. The average temperature in the month was 13.3°C, the highest May average and 1.8°C above the mean. The average daily maximum temperature was 18.5°C, a May record, with the average daily minimum temperature being 8.2°C. The warmest day was the 7th with an average of 18.9°C, with the coldest day being the 1st with an average temperature of 7.9°C. There were no frost days in the month.

The highest dew point was 17.6°C at 18:28 on the 31st, with the minimum dew point being -1.1°C at 04:16 on the 14th. The monthly average dew point was 9.0°C. The high wind chill was 25.4°C at 16:17 on the 7th, with the low wind chill being 1.3°C at 02:25 on the 1st. The average monthly wind chill was 13.1°C. There were 268.57 hours of sunshine, with the sunniest day being the 14th when 12.1 hours was recorded.

Rainfall in the month totalled 43.8 millimetres, exactly the same as the May average. Rainfall was recorded on only 9 days, a record low for May. The wettest day was the 30th when 15.4 millimetres was recorded, with 13.4 millimetres being recorded on the 2nd. The highest rain rate was 38.8 millimetres recorded at 10:40 on the 30th. The yearly rainfall total is now 280.6 millimetres, slightly under 140% of what is normally expected by the end of May.

The highest barometric pressure was 1029.4 millibars at 23:52 on the 16th. The lowest barometric pressure was 997.0 millibars at 09:20 on the 2nd. The average pressure in the month was 1017.4 millibars. The highest humidity was 96% and the monthly average humidity was 77%. The lowest humidity was 31% at 15:27 on the 14th.

Winds were very light in May. The highest wind gust in the month was 25 mph recorded at 01:19 on the 2nd. The average gust speed in the month was 4.6 mph, a low for May, mean 7.0 mph. The average wind speed was 2.6 mph, another May low, mean 4.2 mph. The maximum wind speed was 12 mph at 13:18 on the 27th, 5.8 mph below the mean. The total wind run was 1879.8 miles, with the predominate direction being 139°.

The maximum high solar radiation recorded at 11:50 on the 29h was 1139 w/m², the highest since 1146 w/m² was recorded on August 4th 2017. The average solar radiation for the month was 232 w/m². The highest U.V. Index was 5.5 set at 13:00 on the 29th, the highest since 5.7 was recorded on August 12th 2017.

Weather Underground History | Weather Underground Graph | Monthly report (pdf)