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Degree Days (65°F Base)
Data last updated 05/17/12 07:05 AM.
DetailSummary

DateHeating Degree Days
JanFebMarAprMayJunJulAugSepOctNovDecYear
2012181.7 69.8 heating degree days less than the January average.125.8 33.1 heating degree days less than the February average.66.9 7.9 heating degree days more than the March average.17.6 5.1 heating degree days more than the April average.0.0* 0.9 heating degree days less than the May average.---------------------392.0* 481.7 heating degree days less than the yearly average.
2011250.1 1.4 heating degree days less than the January average.243.6 84.7 heating degree days more than the February average.58.9 0.1 heating degree days less than the March average.21.0 8.5 heating degree days more than the April average.1.1 0.2 heating degree days more than the May average.0.0  0.0  0.0  0.0  0.0 3.9 heating degree days less than the October average.132.2 52.6 heating degree days more than the November average.356.2 48.8 heating degree days more than the December average.1063.1 189.4 heating degree days more than the yearly average.
2010274.7 23.2 heating degree days more than the January average.130.0 28.9 heating degree days less than the February average.75.9 16.9 heating degree days more than the March average.25.4 12.9 heating degree days more than the April average.3.1 2.2 heating degree days more than the May average.0.0  0.0  0.0  0.0  0.0 3.9 heating degree days less than the October average.134.0 54.4 heating degree days more than the November average.214.4 93 heating degree days less than the December average.857.5 16.2 heating degree days less than the yearly average.
2009150.3 101.2 heating degree days less than the January average.200.9 42 heating degree days more than the February average.44.1 14.9 heating degree days less than the March average.14.6 2.1 heating degree days more than the April average.0.0 0.9 heating degree days less than the May average.0.0  0.0  0.0  0.0  10.3 6.4 heating degree days more than the October average.62.1 17.5 heating degree days less than the November average.327.7 20.3 heating degree days more than the December average.810.0 63.7 heating degree days less than the yearly average.
2008348.6 97.1 heating degree days more than the January average.172.1* 13.2 heating degree days more than the February average.41.7 17.3 heating degree days less than the March average.1.1 11.4 heating degree days less than the April average.3.9 3 heating degree days more than the May average.0.0  0.0  0.0  0.0  1.3 2.6 heating degree days less than the October average.7.8 71.8 heating degree days less than the November average.330.4 23 heating degree days more than the December average.906.9* 33.2 heating degree days more than the yearly average.
2007338.4 86.9 heating degree days more than the January average.118.5 40.4 heating degree days less than the February average.40.1 18.9 heating degree days less than the March average.11.3 1.2 heating degree days less than the April average.0.0 0.9 heating degree days less than the May average.0.0  0.0  0.0  0.0  0.0 3.9 heating degree days less than the October average.54.6 25 heating degree days less than the November average.403.4 96 heating degree days more than the December average.966.3 92.6 heating degree days more than the yearly average.
2006228.8 22.7 heating degree days less than the January average.92.9 66 heating degree days less than the February average.146.7 87.7 heating degree days more than the March average.11.6 0.9 heating degree days less than the April average.0.0 0.9 heating degree days less than the May average.0.0  0.0  0.0  0.0  0.0 3.9 heating degree days less than the October average.52.8 26.8 heating degree days less than the November average.319.7 12.3 heating degree days more than the December average.852.5 21.2 heating degree days less than the yearly average.
2005249.0* 2.5 heating degree days less than the January average.161.2 2.3 heating degree days more than the February average.36.1 22.9 heating degree days less than the March average.1.1* 11.4 heating degree days less than the April average.0.0 0.9 heating degree days less than the May average.0.0*  0.0*  0.0  0.0  0.3 3.6 heating degree days less than the October average.57.1 22.5 heating degree days less than the November average.242.4 65 heating degree days less than the December average.747.2* 126.5 heating degree days less than the yearly average.
2004241.5 10 heating degree days less than the January average.185.0* 26.1 heating degree days more than the February average.20.8 38.2 heating degree days less than the March average.8.5 4 heating degree days less than the April average.0.0* 0.9 heating degree days less than the May average.0.0*  0.0  0.0  0.0  19.3 15.4 heating degree days more than the October average.136.2 56.6 heating degree days more than the November average.264.6 42.8 heating degree days less than the December average.875.9* 2.2 heating degree days more than the yearly average.
 
Max348.6 243.6 146.7 25.4 3.9 0.0 0.0 0.0 0.0 19.3 136.2 403.4 1063.1
Avg251.5 158.9 59.0 12.5 0.9 0.0 0.0 0.0 0.0 3.9 79.6 307.4 873.7
Min150.3 92.9 20.8 1.1 0.0 0.0 0.0 0.0 0.0 0.0 7.8 214.4 392.0
 
 
DateCooling Degree Days
JanFebMarAprMayJunJulAugSepOctNovDecYear
20122.7 0.3 cooling degree days more than the January average.25.9 16.5 cooling degree days more than the February average.79.7 41.8 cooling degree days less than the March average.291.0 77.8 cooling degree days more than the April average.280.0* 161.5 cooling degree days less than the May average.---------------------679.3* 3644.3 cooling degree days less than the yearly average.
20115.9 3.5 cooling degree days more than the January average.5.1 4.3 cooling degree days less than the February average.125.6 4.1 cooling degree days more than the March average.217.6 4.4 cooling degree days more than the April average.315.6 125.9 cooling degree days less than the May average.629.3 35 cooling degree days less than the June average.853.8 31.2 cooling degree days less than the July average.952.4 64.4 cooling degree days more than the August average.718.6 30.1 cooling degree days more than the September average.400.3 68.8 cooling degree days more than the October average.12.1 65.1 cooling degree days less than the November average.0.0 1.1 cooling degree days less than the December average.4236.3 87.3 cooling degree days less than the yearly average.
20100.0 2.4 cooling degree days less than the January average.5.2 4.2 cooling degree days less than the February average.67.4 54.1 cooling degree days less than the March average.155.0 58.2 cooling degree days less than the April average.351.0 90.5 cooling degree days less than the May average.659.9 4.4 cooling degree days less than the June average.892.3 7.3 cooling degree days more than the July average.865.6 22.4 cooling degree days less than the August average.729.0 40.5 cooling degree days more than the September average.319.0 12.5 cooling degree days less than the October average.82.7 5.5 cooling degree days more than the November average.2.6 1.5 cooling degree days more than the December average.4129.7 193.9 cooling degree days less than the yearly average.
200910.8 8.4 cooling degree days more than the January average.9.9 0.5 cooling degree days more than the February average.89.0 32.5 cooling degree days less than the March average.194.2 19 cooling degree days less than the April average.626.3 184.8 cooling degree days more than the May average.533.1 131.2 cooling degree days less than the June average.985.5 100.5 cooling degree days more than the July average.892.1 4.1 cooling degree days more than the August average.763.7 75.2 cooling degree days more than the September average.294.6 36.9 cooling degree days less than the October average.80.9 3.7 cooling degree days more than the November average.0.0 1.1 cooling degree days less than the December average.4480.1 156.5 cooling degree days more than the yearly average.
20080.0 2.4 cooling degree days less than the January average.7.7* 1.7 cooling degree days less than the February average.135.5 14 cooling degree days more than the March average.220.5 7.3 cooling degree days more than the April average.370.3 71.2 cooling degree days less than the May average.813.0 148.7 cooling degree days more than the June average.897.9 12.9 cooling degree days more than the July average.866.3 21.7 cooling degree days less than the August average.782.5 94 cooling degree days more than the September average.406.4 74.9 cooling degree days more than the October average.122.8 45.6 cooling degree days more than the November average.0.9 0.2 cooling degree days less than the December average.4623.8* 300.2 cooling degree days more than the yearly average.
20070.3 2.1 cooling degree days less than the January average.14.7 5.3 cooling degree days more than the February average.205.5 84 cooling degree days more than the March average.263.0 49.8 cooling degree days more than the April average.503.1 61.6 cooling degree days more than the May average.742.5 78.2 cooling degree days more than the June average.904.3 19.3 cooling degree days more than the July average.927.5 39.5 cooling degree days more than the August average.614.7 73.8 cooling degree days less than the September average.312.4 19.1 cooling degree days less than the October average.143.1 65.9 cooling degree days more than the November average.0.0 1.1 cooling degree days less than the December average.4631.1 307.5 cooling degree days more than the yearly average.
20061.0 1.4 cooling degree days less than the January average.16.2 6.8 cooling degree days more than the February average.25.0 96.5 cooling degree days less than the March average.133.2 80 cooling degree days less than the April average.560.6 119.1 cooling degree days more than the May average.833.6 169.3 cooling degree days more than the June average.993.0 108 cooling degree days more than the July average.858.2 29.8 cooling degree days less than the August average.648.1 40.4 cooling degree days less than the September average.278.9 52.6 cooling degree days less than the October average.101.9 24.7 cooling degree days more than the November average.0.0 1.1 cooling degree days less than the December average.4449.7 126.1 cooling degree days more than the yearly average.
20051.2* 1.2 cooling degree days less than the January average.0.0 9.4 cooling degree days less than the February average.59.5 62 cooling degree days less than the March average.168.3* 44.9 cooling degree days less than the April average.521.8 80.3 cooling degree days more than the May average.483.1* 181.2 cooling degree days less than the June average.634.0* 251 cooling degree days less than the July average.873.3 14.7 cooling degree days less than the August average.613.0 75.5 cooling degree days less than the September average.330.0 1.5 cooling degree days less than the October average.52.9 24.3 cooling degree days less than the November average.2.1 1 cooling degree days more than the December average.3739.2* 584.4 cooling degree days less than the yearly average.
20040.0 2.4 cooling degree days less than the January average.0.0* 9.4 cooling degree days less than the February average.306.7 185.2 cooling degree days more than the March average.276.3 63.1 cooling degree days more than the April average.444.7* 3.2 cooling degree days more than the May average.619.8* 44.5 cooling degree days less than the June average.918.9 33.9 cooling degree days more than the July average.868.8 19.2 cooling degree days less than the August average.638.6 49.9 cooling degree days less than the September average.310.0 21.5 cooling degree days less than the October average.21.5 55.7 cooling degree days less than the November average.3.2 2.1 cooling degree days more than the December average.4408.5* 84.9 cooling degree days more than the yearly average.
 
Max10.8 25.9 306.7 291.0 626.3 833.6 993.0 952.4 782.5 406.4 143.1 3.2 4631.1
Avg2.4 9.4 121.5 213.2 441.5 664.3 885.0 888.0 688.5 331.5 77.2 1.1 4323.6
Min0.0 0.0 25.0 133.2 280.0 483.1 634.0 858.2 613.0 278.9 12.1 0.0 679.3
 
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 (65). Degree Days are used in estimating the energy needs for heating or cooling a building.