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38.96875, -76.8634

Normals for September

Temp ( °F °C ) Precip ( " mm ) Degree Days
Min Max Avg MTD YTD Heating Cooling
1 63 17 84 29 74 23 N/A N/A 0.1 8.7
2 63 17 84 29 73 23 N/A N/A 0.1 8.5
3 62 17 84 29 73 23 N/A N/A 0.2 8.2
4 62 17 84 29 73 23 N/A N/A 0.2 8
5 62 17 83 29 73 23 N/A N/A 0.2 7.7
6 61 16 83 28 72 22 N/A N/A 0.2 7.4
7 61 16 83 28 72 22 N/A N/A 0.3 7.1
8 61 16 82 28 72 22 N/A N/A 0.3 6.9
9 60 16 82 28 71 22 N/A N/A 0.4 6.6
10 60 16 82 28 71 22 N/A N/A 0.5 6.3
11 60 15 81 27 70 21 N/A N/A 0.6 6
12 59 15 81 27 70 21 N/A N/A 0.7 5.8
13 59 15 81 27 70 21 N/A N/A 0.8 5.5
14 58 15 80 27 69 21 N/A N/A 1 5.2
15 58 14 80 27 69 21 N/A N/A 1.1 5
16 58 14 79 26 68 20 N/A N/A 1.3 4.7
17 57 14 79 26 68 20 N/A N/A 1.4 4.5
18 57 14 79 26 68 20 N/A N/A 1.6 4.2
19 56 13 78 26 67 20 N/A N/A 1.8 4
20 56 13 78 25 67 19 N/A N/A 2 3.7
21 55 13 77 25 66 19 N/A N/A 2.2 3.5
22 55 13 77 25 66 19 N/A N/A 2.4 3.3
23 54 12 77 25 65 19 N/A N/A 2.6 3
24 54 12 76 25 65 18 N/A N/A 2.8 2.7
25 53 12 76 24 65 18 N/A N/A 3 2.5
26 53 12 75 24 64 18 N/A N/A 3.3 2.3
27 52 11 75 24 64 18 N/A N/A 3.6 2.2
28 52 11 75 24 63 17 N/A N/A 3.9 2.1
29 51 11 74 23 63 17 N/A N/A 4.2 1.9
30 51 10 74 23 62 17 N/A N/A 4.5 1.8

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