Average annual temperature is 10.9 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -24.2 °C
Number of sunny days: 162 days
Number of rainy days: 191 days
Number of snow days: 12 days
Look at detailed online map of Westbrook
* Weather data for Westbrook 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) | 10.8 | 14.1 | 15.6 | 33.1 | 30.9 | 33.8 | 32.4 | 29.4 | 33.8 | 28.0 | 19.1 | 15.8 |
| Average daytime temperature (°C) | 5.4 | 5.8 | 8.2 | 17.2 | 21.6 | 24.9 | 28.2 | 25.9 | 23.3 | 18.5 | 8.7 | 7.4 |
| Average temperature (°C) | 1.5 | 0.1 | 2.8 | 10.5 | 14.6 | 18.8 | 23.0 | 20.7 | 18.2 | 13.0 | 3.6 | 3.0 |
| Average night temperature (°C) | -1.6 | -4.6 | -1.7 | 5.1 | 7.9 | 13.7 | 18.8 | 16.4 | 14.1 | 9.0 | -0.2 | -0.1 |
| Absolute minimum temperature (°C) | -7.0 | -24.2 | -8.8 | -3.0 | 0.6 | 7.1 | 13.0 | 11.1 | 6.3 | 1.9 | -5.4 | -6.5 |
| 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) | 4.1 | 6.3 | 7.5 | 8.4 | 11.8 | 9.9 | 10.2 | 9.5 | 7.7 | 7.1 | 7.0 | 4.7 |
| Precipitation (mm) | 169 | 57 | 105 | 115 | 65 | 109 | 220 | 148 | 203 | 101 | 58 | 177 |
| Sunny days | 10 | 12 | 13 | 14 | 21 | 9 | 5 | 10 | 15 | 16 | 22 | 15 |
| Rainy days | 18 | 13 | 15 | 16 | 10 | 21 | 26 | 21 | 15 | 15 | 6 | 15 |
| Snow days | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Westbrook during the most sunny months:
The largest precipitation sum in Westbrook is at