Average annual temperature is 11.0 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -22.3 °C
Number of sunny days: 226 days
Number of rainy days: 110 days
Number of snow days: 29 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) | 4.0 | 12.7 | 19.9 | 29.1 | 31.7 | 34.3 | 36.7 | 37.9 | 36.1 | 31.3 | 18.3 | 12.2 |
| Average daytime temperature (°C) | -2.6 | 2.5 | 6.9 | 16.5 | 25.6 | 30.0 | 29.5 | 30.1 | 27.0 | 16.8 | 11.1 | 5.2 |
| Average temperature (°C) | -5.7 | -3.4 | 0.2 | 9.8 | 18.8 | 24.0 | 23.7 | 24.3 | 21.2 | 11.9 | 5.5 | 0.8 |
| Average night temperature (°C) | -8.7 | -7.6 | -4.1 | 4.4 | 13.0 | 18.2 | 18.6 | 19.3 | 16.4 | 7.9 | 1.3 | -2.7 |
| Absolute minimum temperature (°C) | -22.1 | -22.3 | -12.8 | -5.8 | 3.1 | 11.0 | 10.9 | 12.9 | 10.2 | -6.8 | -6.9 | -8.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.4 | 7.0 | 7.6 | 9.8 | 11.4 | 13.0 | 11.8 | 11.4 | 9.9 | 7.2 | 6.9 | 5.4 |
| Precipitation (mm) | 73 | 40 | 28 | 51 | 89 | 52 | 126 | 66 | 49 | 90 | 8 | 53 |
| Sunny days | 18 | 19 | 19 | 18 | 19 | 17 | 14 | 20 | 17 | 16 | 26 | 23 |
| Rainy days | 5 | 4 | 4 | 10 | 12 | 13 | 17 | 11 | 13 | 13 | 3 | 5 |
| Snow days | 8 | 5 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 |
The best time to visit Waterbury during the most sunny months:
The largest precipitation sum in Waterbury is at