| Rockford Monthly
and Yearly Normals (1971-2000) |
|||||||||||||
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F |
27.2 |
33.0 |
45.5 |
59.1 |
71.2 |
79.9 |
83.1 |
80.9 |
73.9 |
61.8 |
45.5 |
32.0 |
57.8 |
| Low °F |
10.8 |
16.3 |
26.7 |
36.8 |
47.9 |
57.6 |
62.6 |
60.9 |
51.8 |
40.1 |
29.0 |
16.9 |
38.1 |
| Mean °F |
19.0 |
24.7 |
36.1 |
47.9 |
59.6 |
68.8 |
72.9 |
70.9 |
62.8 |
51.0 |
37.2 |
24.4 |
47.9 |
| Precip. (in) |
1.41 |
1.34 |
2.39 |
3.62 |
4.03 |
4.80 |
4.10 |
4.21 |
3.47 |
2.57 |
2.63 |
2.06 |
36.63 |
| Snow (in) |
10.3 |
8.0 |
5.6 |
1.4 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.1 |
2.6 |
10.8 |
38.8 |
| HDD |
1430 |
1143 |
912 |
522 |
215 |
36 |
5 |
14 |
136 |
444 |
832 |
1244 |
6933 |
| CDD |
0 |
0 |
1 |
7 |
49 |
162 |
263 |
205 |
74 |
7 |
0 |
0 |
768 |
