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Degree Days Seasonal Summary (18°C Base)

Data last updated 02/05/24 18:00.
Northern Hemisphere Meterological Seasons
Winter: December, January, February
Spring: March, April, May
Summer: June, July, August
Autumn: September, October, November

 Daily DetailMonthly SummarySeasonal Summary 



DateHeating Degree Days
WinterSpringSummerAutumnYear
Dec 2024 / Nov 2025------8.6* 119.5 less than the Summer average.---8.6* 1734.5 less than the yearly average.
Dec 2023 / Nov 20241051.9 349.7 more than the Winter average.496.0* 16.1 more than the Spring average.------1547.9* 195.2 less than the yearly average.
Dec 2022 / Nov 20231165.0 462.8 more than the Winter average.830.5 350.6 more than the Spring average.230.3 102.2 more than the Summer average.631.4 198.5 more than the Autumn average.2857.2 1114.1 more than the yearly average.
Dec 2021 / Nov 20221141.0 438.8 more than the Winter average.768.2 288.3 more than the Spring average.159.4 31.3 more than the Summer average.598.5 165.6 more than the Autumn average.2667.1 924 more than the yearly average.
Dec 2020 / Nov 20211270.0 567.8 more than the Winter average.953.7 473.8 more than the Spring average.195.4 67.3 more than the Summer average.606.2 173.3 more than the Autumn average.3025.3 1282.2 more than the yearly average.
Dec 2019 / Nov 20201123.0 420.8 more than the Winter average.780.6 300.7 more than the Spring average.278.1 150 more than the Summer average.694.3 261.4 more than the Autumn average.2876.0 1132.9 more than the yearly average.
Dec 2018 / Nov 20191119.0 416.8 more than the Winter average.827.5 347.6 more than the Spring average.231.6 103.5 more than the Summer average.777.9 345 more than the Autumn average.2956.0 1212.9 more than the yearly average.
Dec 2017 / Nov 20181285.9 583.7 more than the Winter average.840.2 360.3 more than the Spring average.154.1 26 more than the Summer average.708.7 275.8 more than the Autumn average.2988.9 1245.8 more than the yearly average.
Dec 2016 / Nov 20171170.8 468.6 more than the Winter average.764.9 285 more than the Spring average.251.0 122.9 more than the Summer average.706.3 273.4 more than the Autumn average.2893.0 1149.9 more than the yearly average.
Dec 2015 / Nov 20161068.6 366.4 more than the Winter average.930.2 450.3 more than the Spring average.239.3 111.2 more than the Summer average.710.9 278 more than the Autumn average.2949.0 1205.9 more than the yearly average.
Dec 2014 / Nov 20154.4 697.8 less than the Winter average.0.0 479.9 less than the Spring average.173.0* 44.9 more than the Summer average.718.8 285.9 more than the Autumn average.896.2* 846.9 less than the yearly average.
Dec 2013 / Nov 20140.0 702.2 less than the Winter average.0.0 479.9 less than the Spring average.0.0 128.1 less than the Summer average.0.0 432.9 less than the Autumn average.0.0 1743.1 less than the yearly average.
Dec 2012 / Nov 201324.1 678.1 less than the Winter average.6.1 473.8 less than the Spring average.0.0 128.1 less than the Summer average.0.0 432.9 less than the Autumn average.30.2 1712.9 less than the yearly average.
Dec 2011 / Nov 201217.4 684.8 less than the Winter average.0.0 479.9 less than the Spring average.0.0 128.1 less than the Summer average.0.4 432.5 less than the Autumn average.17.8 1725.3 less than the yearly average.
Dec 2010 / Nov 201161.3 640.9 less than the Winter average.0.0 479.9 less than the Spring average.0.0 128.1 less than the Summer average.0.0 432.9 less than the Autumn average.61.3 1681.8 less than the yearly average.
Dec 2009 / Nov 201031.1 671.1 less than the Winter average.0.4 479.5 less than the Spring average.0.0 128.1 less than the Summer average.10.2 422.7 less than the Autumn average.41.7 1701.4 less than the yearly average.
Dec 2008 / Nov 2009---------329.4* 103.5 less than the Autumn average.329.4* 1413.7 less than the yearly average.
 
Max1285.9 953.7 278.1 777.9 3025.3
Avg702.2 479.9 128.1 432.9 1743.1
Min0.0 0.0 0.0 0.0 0.0
 
 
DateCooling Degree Days
WinterSpringSummerAutumnYear
Dec 2024 / Nov 2025------0.0* 517.8 less than the Summer average.---0.0* 1274.9 less than the yearly average.
Dec 2023 / Nov 20240.0 133.3 less than the Winter average.0.0* 302.4 less than the Spring average.------0.0* 1274.9 less than the yearly average.
Dec 2022 / Nov 20230.0 133.3 less than the Winter average.0.0 302.4 less than the Spring average.30.1 487.7 less than the Summer average.23.0 298.4 less than the Autumn average.53.1 1221.8 less than the yearly average.
Dec 2021 / Nov 20220.0 133.3 less than the Winter average.0.0 302.4 less than the Spring average.102.9 414.9 less than the Summer average.2.1 319.3 less than the Autumn average.105.0 1169.9 less than the yearly average.
Dec 2020 / Nov 20210.0 133.3 less than the Winter average.0.0 302.4 less than the Spring average.30.2 487.6 less than the Summer average.10.1 311.3 less than the Autumn average.40.3 1234.6 less than the yearly average.
Dec 2019 / Nov 20200.0 133.3 less than the Winter average.0.8 301.6 less than the Spring average.46.4 471.4 less than the Summer average.3.6 317.8 less than the Autumn average.50.8 1224.1 less than the yearly average.
Dec 2018 / Nov 20190.0 133.3 less than the Winter average.0.0 302.4 less than the Spring average.42.7 475.1 less than the Summer average.0.0 321.4 less than the Autumn average.42.7 1232.2 less than the yearly average.
Dec 2017 / Nov 20180.0 133.3 less than the Winter average.1.3 301.1 less than the Spring average.59.5 458.3 less than the Summer average.1.7 319.7 less than the Autumn average.62.5 1212.4 less than the yearly average.
Dec 2016 / Nov 20170.0 133.3 less than the Winter average.3.2 299.2 less than the Spring average.21.2 496.6 less than the Summer average.0.0 321.4 less than the Autumn average.24.4 1250.5 less than the yearly average.
Dec 2015 / Nov 20160.0 133.3 less than the Winter average.0.0 302.4 less than the Spring average.23.9 493.9 less than the Summer average.8.7 312.7 less than the Autumn average.32.6 1242.3 less than the yearly average.
Dec 2014 / Nov 2015336.1 202.8 more than the Winter average.728.2 425.8 more than the Spring average.557.6* 39.8 more than the Summer average.0.4 321 less than the Autumn average.1622.3* 347.4 more than the yearly average.
Dec 2013 / Nov 2014459.2 325.9 more than the Winter average.840.8 538.4 more than the Spring average.1399.4 881.6 more than the Summer average.992.0 670.6 more than the Autumn average.3691.4 2416.5 more than the yearly average.
Dec 2012 / Nov 2013289.3 156 more than the Winter average.558.8 256.4 more than the Spring average.1431.4 913.6 more than the Summer average.889.3 567.9 more than the Autumn average.3168.8 1893.9 more than the yearly average.
Dec 2011 / Nov 2012418.4 285.1 more than the Winter average.768.7 466.3 more than the Spring average.1307.3 789.5 more than the Summer average.787.3 465.9 more than the Autumn average.3281.7 2006.8 more than the yearly average.
Dec 2010 / Nov 2011304.5 171.2 more than the Winter average.889.0 586.6 more than the Spring average.1318.1 800.3 more than the Summer average.1050.1 728.7 more than the Autumn average.3561.7 2286.8 more than the yearly average.
Dec 2009 / Nov 2010192.3 59 more than the Winter average.745.8 443.4 more than the Spring average.1396.9 879.1 more than the Summer average.827.4 506 more than the Autumn average.3162.4 1887.5 more than the yearly average.
Dec 2008 / Nov 2009---------224.6* 96.8 less than the Autumn average.224.6* 1050.3 less than the yearly average.
 
Max459.2 889.0 1431.4 1050.1 3691.4
Avg133.3 302.4 517.8 321.4 1274.9
Min0.0 0.0 0.0 0.0 0.0
 
Color Key
< 100 100 - 200 200 - 300 300 - 400 400 - 500 500 - 600 600 - 700 700 - 800 800 - 900 900 - 1000 1000 - 1100 1100 - 12001200>
* denotes incomplete data for the month/year.

A Degree Day is a unit of measurement equal to a difference of one degree between the mean outdoor temperature and a reference temperature (18°C). Degree Days are used in estimating the energy needs for heating or cooling a building.

Script Developed by Murry Conarroe of Wildwood Weather.