Average annual temperature is 18.2 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -3.6 °C
Number of sunny days: 177 days
Number of rainy days: 188 days
Look at detailed online map of Rockford
* Weather data for Rockford 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) | 21.2 | 25.7 | 26.4 | 29.1 | 33.1 | 35.4 | 35.6 | 37.0 | 33.0 | 29.6 | 25.0 | 21.5 |
| Average daytime temperature (°C) | 15.4 | 19.0 | 20.4 | 23.7 | 27.0 | 30.7 | 32.7 | 33.2 | 30.1 | 24.2 | 18.1 | 14.8 |
| Average temperature (°C) | 10.5 | 13.3 | 14.3 | 17.4 | 20.6 | 24.4 | 26.5 | 26.8 | 24.0 | 18.4 | 12.4 | 9.4 |
| Average night temperature (°C) | 6.7 | 9.3 | 9.4 | 12.1 | 15.7 | 19.1 | 22.0 | 22.1 | 19.0 | 13.6 | 8.1 | 5.5 |
| Absolute minimum temperature (°C) | -2.5 | -2.5 | -3.6 | 7.2 | 8.0 | 17.4 | 18.4 | 17.0 | 14.9 | 7.1 | -1.8 | -0.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 5.8 | 6.7 | 8.7 | 9.5 | 10.9 | 11.6 | 11.5 | 11.0 | 10.6 | 9.0 | 6.6 | 6.9 |
| Precipitation (mm) | 169 | 166 | 165 | 116 | 85 | 146 | 82 | 93 | 48 | 42 | 49 | 118 |
| Sunny days | 12 | 9 | 18 | 14 | 8 | 9 | 10 | 13 | 15 | 24 | 22 | 23 |
| Rainy days | 19 | 19 | 13 | 16 | 23 | 21 | 21 | 18 | 15 | 7 | 8 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Rockford during the most sunny months:
The largest precipitation sum in Rockford is at