Degree Days Seasonal Summary (65°F Base)

Data last updated 05/17/12 16:15.
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 2011 / Nov 20122544.8 438.9 heating degree days less than the Winter average.908.9* 162.6 heating degree days less than the Spring average.------3453.7* 1645.4 heating degree days less than the yearly average.
Dec 2010 / Nov 20113179.7* 196 heating degree days more than the Winter average.1207.9* 136.4 heating degree days more than the Spring average.21.4 7.3 heating degree days less than the Summer average.964.3 50.9 heating degree days less than the Fall average.5373.3* 274.2 heating degree days more than the yearly average.
Dec 2009 / Nov 20103251.0 267.3 heating degree days more than the Winter average.1044.3* 27.2 heating degree days less than the Spring average.8.7* 20 heating degree days less than the Summer average.1072.3* 57.1 heating degree days more than the Fall average.5376.3* 277.2 heating degree days more than the yearly average.
Dec 2008 / Nov 20092959.2 24.5 heating degree days less than the Winter average.1124.8* 53.3 heating degree days more than the Spring average.56.0* 27.3 heating degree days more than the Summer average.985.1* 30.1 heating degree days less than the Fall average.5125.1* 26 heating degree days more than the yearly average.
Dec 2007 / Nov 2008---------1039.2* 24 heating degree days more than the Fall average.1039.2* 4059.9 heating degree days less than the yearly average.
 
Maximum3251.0 1207.9 56.0 1072.3 5376.3
Average2983.7 1071.5 28.7 1015.2 5099.1
Minimum2544.8 908.9 8.7 964.3 0.0
 
 
DateCooling Degree Days
WinterSpringSummerFallYear
Dec 2011 / Nov 20120.0  65.0* 32.7 cooling degree days less than the Spring average.------65.0* 680.6 cooling degree days less than the yearly average.
Dec 2010 / Nov 20110.0*  109.1* 11.4 cooling degree days more than the Spring average.694.2 102.9 cooling degree days more than the Summer average.87.8 31.2 cooling degree days more than the Fall average.891.1* 145.5 cooling degree days more than the yearly average.
Dec 2009 / Nov 20100.0  124.1* 26.4 cooling degree days more than the Spring average.643.9* 52.6 cooling degree days more than the Summer average.92.8* 36.2 cooling degree days more than the Fall average.860.8* 115.2 cooling degree days more than the yearly average.
Dec 2008 / Nov 20090.0  92.7* 5 cooling degree days less than the Spring average.435.9* 155.4 cooling degree days less than the Summer average.45.7* 10.9 cooling degree days less than the Fall average.574.3* 171.3 cooling degree days less than the yearly average.
Dec 2007 / Nov 2008---------0.0* 56.6 cooling degree days less than the Fall average.0.0* 745.6 cooling degree days less than the yearly average.
 
Max0.0 124.1 694.2 92.8 891.1
Avg0.0 97.7 591.3 56.6 745.6
Min0.0 65.0 435.9 0.0 0.0
 
Color Key
≤ 300 300 - 600 600 - 900 900 - 1200 1200 - 1500 1500 - 1800 1800 - 2100 2100 - 2400 2400 - 2700 2700 - 3000 3000 - 3300 3300 - 3600≥ 3600
* 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.