Average annual temperature is 10.2 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -26.5 °C
Number of sunny days: 158 days
Number of rainy days: 191 days
Number of snow days: 16 days
Look at detailed online map of Town of Sandown
* Weather data for Town of Sandown 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) | 11.6 | 14.7 | 15.6 | 29.4 | 30.7 | 32.7 | 31.4 | 28.3 | 32.4 | 27.9 | 17.9 | 15.2 |
| Average daytime temperature (°C) | 4.6 | 4.5 | 6.7 | 14.6 | 20.5 | 22.6 | 27.4 | 24.9 | 22.6 | 18.3 | 8.3 | 7.1 |
| Average temperature (°C) | 0.8 | -1.2 | 2.0 | 8.8 | 13.9 | 17.3 | 22.7 | 20.1 | 18.1 | 13.3 | 3.5 | 2.7 |
| Average night temperature (°C) | -2.7 | -5.8 | -2.0 | 4.6 | 8.4 | 13.3 | 19.0 | 16.2 | 14.6 | 9.6 | -0.1 | -0.3 |
| Absolute minimum temperature (°C) | -12.6 | -26.5 | -6.8 | -3.5 | 1.5 | 7.2 | 13.2 | 12.1 | 7.1 | 0.9 | -5.4 | -7.9 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 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) | 4.2 | 6.3 | 7.3 | 8.3 | 11.4 | 8.3 | 10.0 | 9.6 | 7.7 | 7.4 | 7.1 | 5.1 |
| Precipitation (mm) | 172 | 45 | 129 | 100 | 94 | 155 | 224 | 129 | 216 | 88 | 45 | 156 |
| Sunny days | 10 | 12 | 14 | 15 | 19 | 5 | 9 | 10 | 10 | 17 | 21 | 16 |
| Rainy days | 15 | 11 | 13 | 15 | 12 | 25 | 22 | 21 | 20 | 14 | 8 | 15 |
| Snow days | 6 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Town of Sandown during the most sunny months:
Months with the longest average daylight duration in Town of Sandown:
The largest precipitation sum in Town of Sandown is at