National Weather Service United States Department of Commerce

 

ROCKFORD NORMALS (1991-2020)
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

 

May Normals for Rockford for Temperature and Precipitation

 

Day of Month High Low Average HDD CDD Precipitation
1 65.7 44.1 54.9 10.5 0.4 0.13
2 66 44.4 55.2 10.2 0.5 0.12
3 66.4 44.8 55.6 9.9 0.5 0.12
4 66.8 45.2 56 9.6 0.6 0.12
5 67.2 45.5 56.4 9.3 0.7 0.12
6 67.6 45.9 56.7 9 0.7 0.12
7 67.9 46.3 57.1 8.7 0.8 0.12
8 68.3 46.6 57.5 8.4 0.9 0.12
9 68.7 47 57.8 8.1 1 0.13
10 69 47.3 58.2 7.8 1 0.12
11 69.4 47.7 58.6 7.5 1.1 0.13
12 69.8 48.1 58.9 7.3 1.2 0.13
13 70.2 48.4 59.3 7 1.3 0.13
14 70.5 48.8 59.7 6.7 1.4 0.13
15 70.9 49.1 60 6.5 1.5 0.12
16 71.3 49.5 60.4 6.2 1.6 0.13
17 71.6 49.9 60.7 6 1.7 0.14
18 72 50.2 61.1 5.7 1.8 0.14
19 72.3 50.6 61.5 5.5 2 0.14
20 72.7 50.9 61.8 5.3 2.1 0.14
21 73.1 51.3 62.2 5.1 2.2 0.15
22 73.4 51.7 62.5 4.8 2.4 0.14
23 73.8 52 62.9 4.6 2.5 0.15
24 74.1 52.4 63.3 4.4 2.6 0.14
25 74.5 52.7 63.6 4.1 2.7 0.15
26 74.8 53.1 64 3.9 2.9 0.14
27 75.2 53.5 64.3 3.7 3 0.15
28 75.5 53.8 64.7 3.4 3.1 0.15
29 75.8 54.2 65 3.3 3.3 0.15
30 76.2 54.5 65.4 3.1 3.4 0.15
31 76.5 54.9 65.7 2.9 3.6 0.16
             
MONTH 71.2 49.5 60.4 198.5 54.5 4.18