Average annual temperature is 9.9 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 138 days
Number of rainy days: 201 days
Number of snow days: 26 days
Look at detailed online map of Millstone
* Weather data for Millstone 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) | 13.5 | 17.8 | 16.6 | 27.0 | 30.3 | 31.7 | 30.0 | 30.7 | 30.3 | 26.0 | 14.3 | 13.4 |
| Average daytime temperature (°C) | 4.5 | 7.8 | 6.8 | 16.3 | 20.1 | 23.2 | 26.5 | 24.6 | 21.7 | 15.4 | 8.4 | 6.4 |
| Average temperature (°C) | 0.9 | 1.1 | 1.5 | 9.5 | 13.3 | 17.5 | 21.0 | 19.2 | 16.4 | 11.1 | 3.6 | 2.9 |
| Average night temperature (°C) | -1.7 | -3.6 | -2.6 | 4.0 | 6.9 | 12.3 | 16.3 | 15.0 | 12.2 | 7.6 | 0.2 | 0.3 |
| Absolute minimum temperature (°C) | -8.6 | -15.0 | -8.9 | -4.8 | 0.7 | 7.3 | 12.0 | 10.1 | 6.7 | -0.6 | -8.4 | -6.1 |
| 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) | 2.5 | 6.3 | 5.9 | 8.2 | 10.7 | 10.8 | 11.6 | 10.5 | 8.8 | 6.0 | 6.4 | 3.5 |
| Precipitation (mm) | 125 | 80 | 113 | 76 | 47 | 129 | 113 | 152 | 65 | 102 | 57 | 85 |
| Sunny days | 6 | 11 | 7 | 13 | 22 | 9 | 6 | 9 | 14 | 16 | 14 | 11 |
| Rainy days | 15 | 15 | 17 | 16 | 9 | 21 | 25 | 22 | 16 | 15 | 13 | 17 |
| Snow days | 10 | 2 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 |
The best time to visit Millstone during the most sunny months:
The largest precipitation sum in Millstone is at