Average annual temperature is 11.1 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -22.3 °C
Number of sunny days: 158 days
Number of rainy days: 196 days
Number of snow days: 11 days
Look at detailed online map of Waterbury
* Weather data for Waterbury 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) | 18.1 | 17.7 | 14.5 | 31.0 | 27.0 | 33.1 | 31.3 | 29.1 | 34.6 | 27.0 | 18.4 | 14.7 |
| Average daytime temperature (°C) | 6.7 | 6.1 | 8.4 | 16.6 | 20.2 | 24.2 | 28.1 | 25.5 | 22.7 | 18.0 | 9.5 | 7.8 |
| Average temperature (°C) | 2.8 | 1.2 | 3.3 | 10.6 | 14.1 | 18.2 | 23.0 | 20.7 | 18.0 | 13.2 | 4.4 | 3.5 |
| Average night temperature (°C) | -0.6 | -3.0 | -1.1 | 5.6 | 8.3 | 13.4 | 19.0 | 16.6 | 14.4 | 9.4 | 0.4 | 0.4 |
| Absolute minimum temperature (°C) | -5.3 | -22.3 | -4.9 | -2.1 | 2.7 | 6.9 | 14.1 | 12.7 | 7.7 | 2.7 | -5.3 | -6.8 |
| 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| 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) | 4.4 | 6.6 | 7.5 | 8.7 | 12.0 | 10.4 | 10.9 | 9.5 | 7.6 | 7.7 | 7.0 | 5.1 |
| Precipitation (mm) | 154 | 51 | 130 | 131 | 83 | 90 | 208 | 150 | 268 | 93 | 55 | 225 |
| Sunny days | 8 | 16 | 12 | 14 | 20 | 6 | 7 | 9 | 12 | 16 | 20 | 18 |
| Rainy days | 20 | 8 | 15 | 16 | 11 | 24 | 24 | 22 | 18 | 15 | 10 | 13 |
| Snow days | 3 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Waterbury during the most sunny months:
The largest precipitation sum in Waterbury is at