Average annual temperature is 13.6 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -8.3 °C
Number of sunny days: 174 days
Number of rainy days: 188 days
Number of snow days: 3 days
Look at detailed online map of Rocky Hill
* Weather data for Rocky Hill 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) | 17.2 | 24.0 | 23.9 | 28.6 | 30.2 | 34.3 | 34.3 | 34.2 | 34.4 | 29.3 | 24.1 | 17.8 |
| Average daytime temperature (°C) | 9.1 | 13.4 | 13.3 | 19.8 | 23.6 | 27.6 | 30.1 | 29.4 | 26.9 | 20.3 | 13.5 | 10.4 |
| Average temperature (°C) | 4.3 | 6.3 | 6.5 | 12.9 | 16.9 | 21.2 | 24.1 | 23.2 | 20.5 | 14.5 | 7.4 | 5.2 |
| Average night temperature (°C) | 0.8 | 1.3 | 1.6 | 6.9 | 11.2 | 15.5 | 19.3 | 18.1 | 15.1 | 10.1 | 2.9 | 1.6 |
| Absolute minimum temperature (°C) | -6.5 | -8.3 | -7.7 | -0.5 | 4.2 | 10.6 | 14.8 | 12.9 | 10.4 | 2.0 | -6.7 | -5.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.3 | 7.4 | 7.7 | 9.3 | 9.8 | 11.1 | 11.6 | 10.5 | 9.6 | 7.2 | 7.3 | 5.3 |
| Precipitation (mm) | 121 | 64 | 87 | 63 | 63 | 56 | 82 | 127 | 45 | 56 | 44 | 94 |
| Sunny days | 10 | 17 | 15 | 16 | 17 | 14 | 8 | 14 | 15 | 14 | 21 | 13 |
| Rainy days | 20 | 10 | 15 | 14 | 14 | 16 | 23 | 17 | 15 | 17 | 9 | 18 |
| Snow days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Rocky Hill during the most sunny months:
The largest precipitation sum in Rocky Hill is at