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Degree Days Seasonal Summary (18°C Base)

Data last updated 23/02/12 04:10.
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 20121536.9* 35.2 heating degree days less than the Winter average.---------1536.9* 1211.2 heating degree days less than the yearly average.
Dec 2010 / Nov 20111630.7 58.6 heating degree days more than the Winter average.596.4 5 heating degree days less than the Spring average.15.2 12.1 heating degree days less than the Summer average.726.3 179 heating degree days more than the Fall average.2968.6 220.5 heating degree days more than the yearly average.
Dec 2009 / Nov 20101548.6 23.5 heating degree days less than the Winter average.606.3 4.9 heating degree days more than the Spring average.39.3 12 heating degree days more than the Summer average.681.6 134.3 heating degree days more than the Fall average.2875.8 127.7 heating degree days more than the yearly average.
Dec 2008 / Nov 2009---------233.9* 313.4 heating degree days less than the Fall average.233.9* 2514.2 heating degree days less than the yearly average.
 
Max1630.7 606.3 39.3 726.3 2968.6
Avg1572.1 601.4 27.3 547.3 2748.1
Min1536.9 596.4 15.2 233.9 233.9
 
 
DateCooling Degree Days
WinterSpringSummerFallYear
Dec 2011 / Nov 20120.0*  ---------0.0* 422 cooling degree days less than the yearly average.
Dec 2010 / Nov 20110.0  29.6 2.4 cooling degree days more than the Spring average.369.5 1.5 cooling degree days less than the Summer average.69.0 45.2 cooling degree days more than the Fall average.468.1 46.1 cooling degree days more than the yearly average.
Dec 2009 / Nov 20100.0  24.8 2.4 cooling degree days less than the Spring average.372.5 1.5 cooling degree days more than the Summer average.2.3 21.5 cooling degree days less than the Fall average.399.6 22.4 cooling degree days less than the yearly average.
Dec 2008 / Nov 2009---------0.0* 23.8 cooling degree days less than the Fall average.0.0* 422 cooling degree days less than the yearly average.
 
Max0.0 29.6 372.5 69.0 468.1
Avg0.0 27.2 371.0 23.8 422.0
Min0.0 24.8 369.5 0.0 0.0
 
Color Key
< 150 150 - 300 300 - 450 450 - 600 600 - 750 750 - 900 900 - 1050 1050 - 1200 1200 - 1350 1350 - 1500 1500 - 1650 1650 - 18001800>
* 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.