Average annual temperature is 8.2 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -30.3 °C
Number of sunny days: 178 days
Number of rainy days: 136 days
Number of snow days: 51 days
Look at detailed online map of Rockford (historical)
* Weather data for Rockford (historical) United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.1 | 9.7 | 10.5 | 21.7 | 26.4 | 26.8 | 34.7 | 35.3 | 31.1 | 24.6 | 15.5 | 15.2 |
| Average daytime temperature (°C) | 2.9 | 2.7 | 2.3 | 11.3 | 20.5 | 21.0 | 27.9 | 27.9 | 23.2 | 12.3 | 9.2 | 7.9 |
| Average temperature (°C) | -1.7 | -2.9 | -3.0 | 4.5 | 14.1 | 15.4 | 21.2 | 20.8 | 16.5 | 6.5 | 3.7 | 2.8 |
| Average night temperature (°C) | -5.0 | -7.0 | -6.9 | -0.3 | 8.5 | 10.3 | 14.6 | 15.0 | 11.0 | 2.4 | -0.4 | -0.7 |
| Absolute minimum temperature (°C) | -27.1 | -30.3 | -18.0 | -10.1 | 2.8 | 4.0 | 8.9 | 10.3 | 5.9 | -19.6 | -7.7 | -7.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 5.4 | 6.0 | 7.7 | 9.3 | 11.8 | 11.0 | 13.5 | 11.0 | 9.9 | 7.2 | 6.6 | 6.0 |
| Precipitation (mm) | 32 | 37 | 35 | 65 | 90 | 162 | 17 | 54 | 44 | 47 | 22 | 14 |
| Sunny days | 19 | 16 | 15 | 11 | 7 | 4 | 15 | 22 | 17 | 16 | 15 | 21 |
| Rainy days | 6 | 2 | 1 | 10 | 24 | 26 | 16 | 9 | 13 | 12 | 13 | 4 |
| Snow days | 6 | 10 | 15 | 9 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 6 |
The best time to visit Rockford (historical) during the most sunny months:
Months with the longest average daylight duration in Rockford (historical):
The largest precipitation sum in Rockford (historical) is at