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38.90122, -77.26526

Normals for December

Temp ( °F °C ) Precip ( " mm ) Degree Days
Min Max Avg MTD YTD Heating Cooling
1 31 -1 51 10 41 5 0.11 undefined 40.25 undefined 24.3 0
2 31 -1 50 10 40 5 0.23 undefined 40.37 undefined 24.6 0
3 31 -1 50 10 40 5 0.34 undefined 40.48 undefined 24.9 0
4 30 -1 50 10 40 4 0.46 undefined 40.6 undefined 25.1 0
5 30 -1 49 10 40 4 0.58 undefined 40.72 undefined 25.4 0
6 30 -1 49 9 39 4 0.69 undefined 40.83 undefined 25.6 0
7 30 -1 49 9 39 4 0.81 undefined 40.95 undefined 25.9 0
8 30 -1 48 9 39 4 0.92 undefined 41.06 undefined 26.1 0
9 29 -1 48 9 39 4 1.03 undefined 41.17 undefined 26.3 0
10 29 -1 48 9 38 4 1.14 undefined 41.28 undefined 26.6 0
11 29 -2 47 9 38 3 1.26 undefined 41.4 undefined 26.8 0
12 29 -2 47 8 38 3 1.38 undefined 41.52 undefined 27 0
13 29 -2 47 8 38 3 1.49 undefined 41.63 undefined 27.2 0
14 29 -2 46 8 38 3 1.6 undefined 41.74 undefined 27.5 0
15 29 -2 46 8 37 3 1.72 undefined 41.86 undefined 27.7 0
16 28 -2 46 8 37 3 1.83 undefined 41.97 undefined 27.9 0
17 28 -2 46 8 37 3 1.94 undefined 42.08 undefined 28.1 0
18 28 -2 45 7 37 3 2.05 undefined 42.19 undefined 28.3 0
19 28 -2 45 7 37 3 2.16 undefined 42.3 undefined 28.5 0
20 28 -2 45 7 36 2 2.27 undefined 42.41 undefined 28.7 0
21 28 -2 45 7 36 2 2.38 undefined 42.52 undefined 28.9 0
22 27 -3 45 7 36 2 2.49 undefined 42.63 undefined 29.1 0
23 27 -3 44 7 36 2 2.6 undefined 42.74 undefined 29.3 0
24 27 -3 44 7 36 2 2.71 undefined 42.85 undefined 29.5 0
25 27 -3 44 7 35 2 2.82 undefined 42.96 undefined 29.7 0
26 27 -3 44 7 35 2 2.93 undefined 43.07 undefined 29.8 0
27 27 -3 44 6 35 2 3.03 undefined 43.17 undefined 30 0
28 26 -3 43 6 35 2 3.13 undefined 43.27 undefined 30.2 0
29 26 -3 43 6 35 2 3.23 undefined 43.37 undefined 30.3 0
30 26 -3 43 6 35 1 3.33 undefined 43.47 undefined 30.5 0
31 26 -3 43 6 34 1 3.43 undefined 43.57 undefined 30.7 0

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