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92°F at Mcallen Miller Intl Ap, TX

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3.49in at Destin Fort Walton Beach Ap, FL

State of TN

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74°F at Memphis International Ap, TN
74°F at Jackson Mckellar- Sipes Ap, TN

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43°F at Bristol Ap, TN

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0.98in at Chattanooga Ap, TN

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Degree Days Seasonal Summary (65°F Base)

Data Last Updated: 11/21/2024 @ 00:25 AM



Northern Hemisphere Meterological Seasons
Winter: December, January, February
Spring: March, April, May
Summer: June, July, August
Fall: September, October, November

 Daily DetailMonthly SummarySeasonal Summary 

 Heating Degree Days
YearWinterSpringSummerFallYear
Dec 2023 / Nov 20241875.3 242.7 heating degree days more than the Winter average.392.2* 281.7 heating degree days less than the Spring average.---99.3* 485.4 heating degree days less than the Fall average.2366.8* 527.3 heating degree days less than the yearly average.
Dec 2022 / Nov 20231676.6 44 heating degree days more than the Winter average.567.2* 106.7 heating degree days less than the Spring average.0.0* 2.9 heating degree days less than the Summer average.477.0* 107.7 heating degree days less than the Fall average.2720.8* 173.3 heating degree days less than the yearly average.
Dec 2021 / Nov 2022824.8* 807.8 heating degree days less than the Winter average.603.1 70.8 heating degree days less than the Spring average.0.0* 2.9 heating degree days less than the Summer average.634.3* 49.6 heating degree days more than the Fall average.2062.2* 831.9 heating degree days less than the yearly average.
Dec 2020 / Nov 20212359.3* 726.7 heating degree days more than the Winter average.681.9 8 heating degree days more than the Spring average.0.0* 2.9 heating degree days less than the Summer average.---3041.2* 147.1 heating degree days more than the yearly average.
Dec 2019 / Nov 20201944.2 311.6 heating degree days more than the Winter average.687.5 13.6 heating degree days more than the Spring average.0.0 2.9 heating degree days less than the Summer average.658.5 73.8 heating degree days more than the Fall average.3290.2 396.1 heating degree days more than the yearly average.
Dec 2018 / Nov 20192036.4 403.8 heating degree days more than the Winter average.760.3 86.4 heating degree days more than the Spring average.0.0 2.9 heating degree days less than the Summer average.869.8 285.1 heating degree days more than the Fall average.3666.5 772.4 heating degree days more than the yearly average.
Dec 2017 / Nov 20182277.8 645.2 heating degree days more than the Winter average.784.4* 110.5 heating degree days more than the Spring average.0.0* 2.9 heating degree days less than the Summer average.878.0 293.3 heating degree days more than the Fall average.3940.2* 1046.1 heating degree days more than the yearly average.
Dec 2016 / Nov 20171784.1 151.5 heating degree days more than the Winter average.547.5 126.4 heating degree days less than the Spring average.0.0 2.9 heating degree days less than the Summer average.691.4 106.7 heating degree days more than the Fall average.3023.0 128.9 heating degree days more than the yearly average.
Dec 2015 / Nov 2016462.0* 1170.6 heating degree days less than the Winter average.---0.0* 2.9 heating degree days less than the Summer average.478.4 106.3 heating degree days less than the Fall average.940.4* 1953.7 heating degree days less than the yearly average.
Dec 2014 / Nov 2015---186.8* 487.1 heating degree days less than the Spring average.4.0 1.1 heating degree days more than the Summer average.548.0 36.7 heating degree days less than the Fall average.738.8* 2155.3 heating degree days less than the yearly average.
Dec 2013 / Nov 20141796.3* 163.7 heating degree days more than the Winter average.1014.3 340.4 heating degree days more than the Spring average.0.0 2.9 heating degree days less than the Summer average.860.1 275.4 heating degree days more than the Fall average.3670.7* 776.6 heating degree days more than the yearly average.
Dec 2012 / Nov 20131353.3* 279.3 heating degree days less than the Winter average.963.3 289.4 heating degree days more than the Spring average.0.6 2.3 heating degree days less than the Summer average.10.6* 574.1 heating degree days less than the Fall average.2327.8* 566.3 heating degree days less than the yearly average.
Dec 2011 / Nov 20121201.3* 431.3 heating degree days less than the Winter average.898.2* 224.3 heating degree days more than the Spring average.30.3* 27.4 heating degree days more than the Summer average.811.0* 226.3 heating degree days more than the Fall average.2940.8* 46.7 heating degree days more than the yearly average.
 
Maximum2359.3 1014.3 30.3 878.0 3940.2
Average1632.6 673.9 2.9 584.7 2894.1
Minimum462.0 186.8 0.0 10.6 0.0
 
 
 Cooling Degree Days
YearWinterSpringSummerFallYear
Dec 2023 / Nov 20246.7 4.2 cooling degree days more than the Winter average.103.1* 78.1 cooling degree days less than the Spring average.---21.4* 208.7 cooling degree days less than the Fall average.131.2* 1177.7 cooling degree days less than the yearly average.
Dec 2022 / Nov 20237.2 4.7 cooling degree days more than the Winter average.197.5* 16.3 cooling degree days more than the Spring average.1156.8* 261.7 cooling degree days more than the Summer average.323.2* 93.1 cooling degree days more than the Fall average.1684.7* 375.8 cooling degree days more than the yearly average.
Dec 2021 / Nov 20220.0* 2.5 cooling degree days less than the Winter average.257.6 76.4 cooling degree days more than the Spring average.947.6* 52.5 cooling degree days more than the Summer average.242.4* 12.3 cooling degree days more than the Fall average.1447.6* 138.7 cooling degree days more than the yearly average.
Dec 2020 / Nov 20210.0* 2.5 cooling degree days less than the Winter average.120.2 61 cooling degree days less than the Spring average.304.8* 590.3 cooling degree days less than the Summer average.---425.0* 883.9 cooling degree days less than the yearly average.
Dec 2019 / Nov 20200.0 2.5 cooling degree days less than the Winter average.120.2 61 cooling degree days less than the Spring average.993.2 98.1 cooling degree days more than the Summer average.189.5 40.6 cooling degree days less than the Fall average.1302.9 6 cooling degree days less than the yearly average.
Dec 2018 / Nov 20190.0 2.5 cooling degree days less than the Winter average.236.9 55.7 cooling degree days more than the Spring average.1021.0 125.9 cooling degree days more than the Summer average.413.4 183.3 cooling degree days more than the Fall average.1671.3 362.4 cooling degree days more than the yearly average.
Dec 2017 / Nov 20188.2 5.7 cooling degree days more than the Winter average.251.1* 69.9 cooling degree days more than the Spring average.1185.1* 290 cooling degree days more than the Summer average.358.7 128.6 cooling degree days more than the Fall average.1803.1* 494.2 cooling degree days more than the yearly average.
Dec 2016 / Nov 20173.2 0.7 cooling degree days more than the Winter average.196.1 14.9 cooling degree days more than the Spring average.986.5 91.4 cooling degree days more than the Summer average.241.5 11.4 cooling degree days more than the Fall average.1427.3 118.4 cooling degree days more than the yearly average.
Dec 2015 / Nov 20162.8* 0.3 cooling degree days more than the Winter average.---818.1* 77 cooling degree days less than the Summer average.349.4 119.3 cooling degree days more than the Fall average.1170.3* 138.6 cooling degree days less than the yearly average.
Dec 2014 / Nov 2015---153.7* 27.5 cooling degree days less than the Spring average.1072.7 177.6 cooling degree days more than the Summer average.223.3 6.8 cooling degree days less than the Fall average.1449.7* 140.8 cooling degree days more than the yearly average.
Dec 2013 / Nov 20140.0* 2.5 cooling degree days less than the Winter average.208.5 27.3 cooling degree days more than the Spring average.921.3 26.2 cooling degree days more than the Summer average.204.9 25.2 cooling degree days less than the Fall average.1334.7* 25.8 cooling degree days more than the yearly average.
Dec 2012 / Nov 20131.9* 0.6 cooling degree days less than the Winter average.173.6 7.6 cooling degree days less than the Spring average.914.8 19.7 cooling degree days more than the Summer average.175.0* 55.1 cooling degree days less than the Fall average.1265.3* 43.6 cooling degree days less than the yearly average.
Dec 2011 / Nov 20120.0* 2.5 cooling degree days less than the Winter average.156.3* 24.9 cooling degree days less than the Spring average.418.8* 476.3 cooling degree days less than the Summer average.17.9* 212.2 cooling degree days less than the Fall average.593.0* 715.9 cooling degree days less than the yearly average.
 
Maximum8.2 257.6 1185.1 413.4 1803.1
Average2.5 181.2 895.1 230.1 1308.9
Minimum0.0 103.1 304.8 17.9 0.0
 
* Denotes incomplete data for the month/year.Script Developed by Murry Conarroe of Wildwood Weather.
 
Color Key
≤ 0 0 - 250 250 - 500 500 - 750 750 - 1000 1000 - 1250 1250 - 1500 1500 - 1750 1750 - 2000 2000 - 2250 2250 - 2500≥ 2500

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 needed for heating or cooling a building on any given day.