Degree Days Seasonal Summary (18°C Base)

Data last updated 11/12/17 20:43.
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 2017 / Nov 2018135.8* 143.5 less than the Winter average.---------135.8* 707.4 less than the yearly average.
Dec 2016 / Nov 20171170.8 891.5 more than the Winter average.764.9 552.2 more than the Spring average.251.0 168.1 more than the Summer average.706.3 438 more than the Autumn average.2893.0 2049.8 more than the yearly average.
Dec 2015 / Nov 20161068.6 789.3 more than the Winter average.930.2 717.5 more than the Spring average.239.3 156.4 more than the Summer average.710.9 442.6 more than the Autumn average.2949.0 2105.8 more than the yearly average.
Dec 2014 / Nov 20154.4 274.9 less than the Winter average.0.0 212.7 less than the Spring average.173.0* 90.1 more than the Summer average.718.8 450.5 more than the Autumn average.896.2* 53 more than the yearly average.
Dec 2013 / Nov 20140.0 279.3 less than the Winter average.0.0 212.7 less than the Spring average.0.0 82.9 less than the Summer average.0.0 268.3 less than the Autumn average.0.0 843.2 less than the yearly average.
Dec 2012 / Nov 201324.1 255.2 less than the Winter average.6.1 206.6 less than the Spring average.0.0 82.9 less than the Summer average.0.0 268.3 less than the Autumn average.30.2 813 less than the yearly average.
Dec 2011 / Nov 201217.4 261.9 less than the Winter average.0.0 212.7 less than the Spring average.0.0 82.9 less than the Summer average.0.4 267.9 less than the Autumn average.17.8 825.4 less than the yearly average.
Dec 2010 / Nov 201161.3 218 less than the Winter average.0.0 212.7 less than the Spring average.0.0 82.9 less than the Summer average.0.0 268.3 less than the Autumn average.61.3 781.9 less than the yearly average.
Dec 2009 / Nov 201031.1 248.2 less than the Winter average.0.4 212.3 less than the Spring average.0.0 82.9 less than the Summer average.10.2 258.1 less than the Autumn average.41.7 801.5 less than the yearly average.
 
Max1170.8 930.2 251.0 718.8 2949.0
Avg279.3 212.7 82.9 268.3 843.2
Min0.0 0.0 0.0 0.0 0.0
 
 
DateCooling Degree Days
WinterSpringSummerAutumnYear
Dec 2017 / Nov 20180.0* 222.2 less than the Winter average.---------0.0* 2290.4 less than the yearly average.
Dec 2016 / Nov 20170.0 222.2 less than the Winter average.3.2 563.6 less than the Spring average.21.2 910.8 less than the Summer average.0.0 569.4 less than the Autumn average.24.4 2266 less than the yearly average.
Dec 2015 / Nov 20160.0 222.2 less than the Winter average.0.0 566.8 less than the Spring average.23.9 908.1 less than the Summer average.8.7 560.7 less than the Autumn average.32.6 2257.8 less than the yearly average.
Dec 2014 / Nov 2015336.1 113.9 more than the Winter average.728.2 161.4 more than the Spring average.557.6* 374.4 less than the Summer average.0.4 569 less than the Autumn average.1622.3* 668.1 less than the yearly average.
Dec 2013 / Nov 2014459.2 237 more than the Winter average.840.8 274 more than the Spring average.1399.4 467.4 more than the Summer average.992.0 422.6 more than the Autumn average.3691.4 1401 more than the yearly average.
Dec 2012 / Nov 2013289.3 67.1 more than the Winter average.558.8 8 less than the Spring average.1431.4 499.4 more than the Summer average.889.3 319.9 more than the Autumn average.3168.8 878.4 more than the yearly average.
Dec 2011 / Nov 2012418.4 196.2 more than the Winter average.768.7 201.9 more than the Spring average.1307.3 375.3 more than the Summer average.787.3 217.9 more than the Autumn average.3281.7 991.3 more than the yearly average.
Dec 2010 / Nov 2011304.5 82.3 more than the Winter average.889.0 322.2 more than the Spring average.1318.1 386.1 more than the Summer average.1050.1 480.7 more than the Autumn average.3561.7 1271.3 more than the yearly average.
Dec 2009 / Nov 2010192.3 29.9 less than the Winter average.745.8 179 more than the Spring average.1396.9 464.9 more than the Summer average.827.4 258 more than the Autumn average.3162.4 872 more than the yearly average.
 
Max459.2 889.0 1431.4 1050.1 3691.4
Avg222.2 566.8 932.0 569.4 2290.4
Min0.0 0.0 21.2 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.