Average annual temperature is 12.9 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -15.5 °C
Number of sunny days: 233 days
Number of rainy days: 118 days
Number of snow days: 14 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) | 11.9 | 16.1 | 22.6 | 29.3 | 31.4 | 34.4 | 36.8 | 38.7 | 36.0 | 31.9 | 22.7 | 16.0 |
| Average daytime temperature (°C) | 3.7 | 7.9 | 10.2 | 20.3 | 26.3 | 30.0 | 29.7 | 31.2 | 28.6 | 19.5 | 12.6 | 7.3 |
| Average temperature (°C) | -0.9 | 0.5 | 3.8 | 12.4 | 19.6 | 24.0 | 24.3 | 25.2 | 22.4 | 13.9 | 6.7 | 2.7 |
| Average night temperature (°C) | -4.4 | -4.4 | -0.8 | 6.4 | 13.6 | 18.2 | 19.7 | 20.3 | 17.0 | 9.3 | 2.1 | -0.8 |
| Absolute minimum temperature (°C) | -15.5 | -15.1 | -9.9 | -2.9 | 4.1 | 11.5 | 13.8 | 13.3 | 10.8 | -5.4 | -6.2 | -5.3 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 8.0 | 8.0 | 10.1 | 11.4 | 12.9 | 11.5 | 11.4 | 10.6 | 7.9 | 7.1 | 5.3 |
| Precipitation (mm) | 26 | 42 | 30 | 9 | 56 | 81 | 82 | 37 | 23 | 39 | 16 | 64 |
| Sunny days | 21 | 22 | 22 | 22 | 14 | 17 | 13 | 21 | 21 | 18 | 23 | 19 |
| Rainy days | 5 | 4 | 9 | 8 | 17 | 13 | 18 | 10 | 9 | 12 | 5 | 8 |
| Snow days | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Rockford during the most sunny months:
The largest precipitation sum in Rockford is at