National Weather Service United States Department of Commerce

 

Rochester
December Normals

(1991-2020)

 

Day Temperature Degree Days Sunrise Sunset
Max Min Average Heating Cooling
1 34 19 26 39 0 725 433
2 33 19 26 39 0 726 433
3 33 18 26 40 0 727 432
4 32 18 25 40 0 728 432
5 32 17 25 40 0 729 432
               
6 32 17 24 41 0 730 432
7 31 17 24 41 0 731 432
8 31 16 23 42 0 732 432
9 30 16 23 42 0 733 432
10 30 15 23 42 0 734 432
               
11 29 15 22 43 0 735 432
12 29 15 22 43 0 736 432
13 29 14 22 44 0 737 432
14 28 14 21 44 0 737 432
15 28 14 21 44 0 738 432
               
16 28 13 21 44 0 739 433
17 27 13 20 45 0 740 433
18 27 13 20 45 0 740 434
19 27 12 20 46 0 741 434
20 26 12 19 46 0 741 434
               
21 26 12 19 46 0 742 435
22 26 12 19 46 0 742 435
23 26 11 18 47 0 743 436
24 25 11 18 47 0 743 437
25 25 11 18 47 0 743 437
               
26 25 10 18 47 0 744 438
27 25 10 17 48 0 744 439
28 24 10 17 48 0 744 439
29 24 10 17 48 0 744 440
30 24 9 17 48 0 745 441
               
31 24 9 17 48 0 745 442
Monthly 28.0 13.6 20.8 1406 0    

 

Normal Precipitation: 1.28"
Normal Snowfall: 12.4"

 

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