Average annual temperature is 9.1 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 187 days
Number of rainy days: 146 days
Number of snow days: 32 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) | 8.0 | 7.6 | 12.8 | 24.7 | 28.0 | 29.7 | 33.4 | 36.7 | 29.3 | 24.5 | 11.0 | 9.9 |
| Average daytime temperature (°C) | 2.3 | 3.9 | 6.4 | 11.6 | 21.9 | 23.9 | 29.7 | 28.4 | 22.2 | 15.5 | 6.3 | 4.1 |
| Average temperature (°C) | -1.2 | -1.2 | 0.7 | 5.8 | 15.1 | 17.5 | 22.7 | 21.7 | 15.3 | 9.3 | 2.0 | 0.5 |
| Average night temperature (°C) | -3.8 | -4.1 | -3.4 | 1.1 | 9.3 | 11.3 | 15.6 | 15.6 | 10.3 | 5.0 | -0.7 | -2.0 |
| Absolute minimum temperature (°C) | -14.9 | -17.0 | -12.8 | -4.9 | 4.2 | 4.6 | 11.7 | 9.1 | 4.3 | -6.5 | -7.8 | -6.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 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 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| 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) | 4.6 | 5.3 | 7.5 | 8.9 | 12.4 | 13.0 | 14.1 | 10.9 | 9.2 | 7.8 | 4.8 | 3.5 |
| Precipitation (mm) | 31 | 46 | 44 | 60 | 36 | 17 | 0 | 26 | 17 | 16 | 75 | 95 |
| Sunny days | 11 | 11 | 7 | 8 | 13 | 21 | 30 | 20 | 19 | 20 | 14 | 13 |
| Rainy days | 15 | 9 | 10 | 19 | 18 | 9 | 1 | 11 | 11 | 10 | 16 | 17 |
| Snow days | 5 | 8 | 14 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
The best time to visit Rockford during the most sunny months:
Months with the longest average daylight duration in Rockford:
The largest precipitation sum in Rockford is at