Seasonal Degree Days Summary (65°F Base)

Note: Data is updated after midnight each day.
Northern Hemisphere Meterological Seasons
Winter: December, January, February
Spring: March, April, May
Summer: June, July, August
Fall: September, October, November

 Daily DetailMonthly SummarySeasonal Summary 
DateHeating Degree Days
WinterSpringSummerFallYear
Dec 2023 / Nov 20241454.8 160.4 more than the Winter average.318.1* 87.7 less than the Spring average.2.2 0.5 less than the Summer average.172.8* 280.8 less than the Fall average.1947.9* 208.6 less than the yearly average.
Dec 2022 / Nov 20231131.8* 162.6 less than the Winter average.403.2 2.6 less than the Spring average.2.1 0.6 less than the Summer average.495.7 42.1 more than the Fall average.2032.8* 123.7 less than the yearly average.
Dec 2021 / Nov 20221377.2 82.8 more than the Winter average.455.7* 49.9 more than the Spring average.0.2 2.5 less than the Summer average.600.5 146.9 more than the Fall average.2433.6* 277.1 more than the yearly average.
Dec 2020 / Nov 20211672.3 377.9 more than the Winter average.461.0 55.2 more than the Spring average.1.2* 1.5 less than the Summer average.506.7 53.1 more than the Fall average.2641.2* 484.7 more than the yearly average.
Dec 2019 / Nov 20201185.3* 109.1 less than the Winter average.307.9 97.9 less than the Spring average.2.5* 0.2 less than the Summer average.407.4 46.2 less than the Fall average.1903.1* 253.4 less than the yearly average.
Dec 2018 / Nov 20191327.9 33.5 more than the Winter average.517.8 112 more than the Spring average.7.7 5 more than the Summer average.572.4 118.8 more than the Fall average.2425.8 269.3 more than the yearly average.
Dec 2017 / Nov 20181316.6* 22.2 more than the Winter average.495.7 89.9 more than the Spring average.0.4 2.3 less than the Summer average.532.7 79.1 more than the Fall average.2345.4* 188.9 more than the yearly average.
Dec 2016 / Nov 2017992.7* 301.7 less than the Winter average.394.1 11.7 less than the Spring average.6.4 3.7 more than the Summer average.490.3 36.7 more than the Fall average.1883.5* 273 less than the yearly average.
Dec 2015 / Nov 20161337.6* 43.2 more than the Winter average.351.3 54.5 less than the Spring average.0.4* 2.3 less than the Summer average.405.1* 48.5 less than the Fall average.2094.4* 62.1 less than the yearly average.
Dec 2014 / Nov 20151148.0* 146.4 less than the Winter average.353.0 52.8 less than the Spring average.4.1* 1.4 more than the Summer average.352.1 101.5 less than the Fall average.1857.2* 299.3 less than the yearly average.
 
Max1672.3 517.8 7.7 600.5 2641.2
Avg1294.4 405.8 2.7 453.6 2156.5
Min992.7 307.9 0.2 172.8 1857.2
 
 
DateCooling Degree Days
WinterSpringSummerFallYear
Dec 2023 / Nov 202458.0 27.2 less than the Winter average.482.4* 24.6 more than the Spring average.1355.0 115.9 more than the Summer average.555.9* 13.1 more than the Fall average.2451.3* 126.4 more than the yearly average.
Dec 2022 / Nov 2023156.0* 70.8 more than the Winter average.467.4 9.6 more than the Spring average.1511.4 272.3 more than the Summer average.643.2 100.4 more than the Fall average.2778.0* 453.1 more than the yearly average.
Dec 2021 / Nov 2022141.5 56.3 more than the Winter average.512.0* 54.2 more than the Spring average.1300.7 61.6 more than the Summer average.473.1 69.7 less than the Fall average.2427.3* 102.4 more than the yearly average.
Dec 2020 / Nov 202147.9 37.3 less than the Winter average.405.7 52.1 less than the Spring average.1225.6* 13.5 less than the Summer average.531.9 10.9 less than the Fall average.2211.1* 113.8 less than the yearly average.
Dec 2019 / Nov 202055.3* 29.9 less than the Winter average.459.2 1.4 more than the Spring average.994.5* 244.6 less than the Summer average.496.2 46.6 less than the Fall average.2005.2* 319.7 less than the yearly average.
Dec 2018 / Nov 201955.4 29.8 less than the Winter average.438.9 18.9 less than the Spring average.1204.4 34.7 less than the Summer average.604.6 61.8 more than the Fall average.2303.3 21.6 less than the yearly average.
Dec 2017 / Nov 201894.2* 9 more than the Winter average.452.3 5.5 less than the Spring average.1234.3 4.8 less than the Summer average.545.5 2.7 more than the Fall average.2326.3* 1.4 more than the yearly average.
Dec 2016 / Nov 2017128.1* 42.9 more than the Winter average.478.3 20.5 more than the Spring average.1100.1 139 less than the Summer average.493.6 49.2 less than the Fall average.2200.1* 124.8 less than the yearly average.
Dec 2015 / Nov 2016101.6* 16.4 more than the Winter average.432.8 25 less than the Spring average.1266.5* 27.4 more than the Summer average.536.1* 6.7 less than the Fall average.2337.0* 12.1 more than the yearly average.
Dec 2014 / Nov 201514.0* 71.2 less than the Winter average.449.4 8.4 less than the Spring average.1198.5* 40.6 less than the Summer average.547.9 5.1 more than the Fall average.2209.8* 115.1 less than the yearly average.
 
Max156.0 512.0 1511.4 643.2 2778.0
Avg85.2 457.8 1239.1 542.8 2324.9
Min14.0 405.7 994.5 473.1 2005.2
 
Color Key
< 300 300 - 600 600 - 900 900 - 1200 1200 - 1500 1500 - 1800 1800 - 2100 2100 - 2400 2400 - 2700 2700 - 3000 3000 - 3300 3300 - 36003600>
* 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 (65°F). Degree Days are used in estimating the energy needs for heating or cooling a building.

Script Developed by Murry Conarroe of Wildwood Weather.