Average annual temperature is 5.8 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -30.5 °C
Number of sunny days: 216 days
Number of rainy days: 101 days
Number of snow days: 48 days
Look at detailed online map of Township of Rock Island
* Weather data for Township of Rock Island 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) | 3.1 | 4.6 | 3.2 | 25.3 | 28.0 | 31.4 | 34.7 | 35.2 | 34.0 | 20.6 | 9.8 | 7.8 |
| Average daytime temperature (°C) | -4.6 | -3.3 | -4.6 | 7.6 | 22.0 | 26.4 | 27.0 | 27.5 | 23.5 | 10.5 | 3.8 | 1.9 |
| Average temperature (°C) | -8.7 | -8.7 | -9.8 | 1.3 | 14.8 | 20.2 | 20.2 | 20.6 | 17.0 | 5.7 | -1.0 | -2.8 |
| Average night temperature (°C) | -11.9 | -13.2 | -14.0 | -3.3 | 8.1 | 14.1 | 14.4 | 15.0 | 11.5 | 2.1 | -4.4 | -6.1 |
| Absolute minimum temperature (°C) | -27.6 | -30.5 | -24.4 | -17.4 | -1.6 | 10.2 | 7.2 | 10.3 | 6.0 | -18.7 | -13.9 | -12.5 |
| 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 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.8 | 10.2 | 11.9 | 13.7 | 15.2 | 16.1 | 15.7 | 14.3 | 12.6 | 10.8 | 9.2 | 8.4 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.2 | 7.2 | 7.4 | 9.2 | 11.4 | 13.1 | 13.1 | 11.1 | 10.1 | 6.4 | 6.1 | 5.7 |
| Precipitation (mm) | 9 | 7 | 27 | 33 | 78 | 45 | 39 | 55 | 13 | 69 | 7 | 23 |
| Sunny days | 23 | 18 | 18 | 17 | 13 | 15 | 14 | 16 | 20 | 16 | 20 | 26 |
| Rainy days | 0 | 1 | 0 | 7 | 18 | 15 | 17 | 15 | 10 | 10 | 5 | 3 |
| Snow days | 8 | 9 | 13 | 6 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 2 |
The best time to visit Township of Rock Island during the most sunny months:
Months with the longest average daylight duration in Township of Rock Island:
The largest precipitation sum in Township of Rock Island is at