Average annual temperature is 14.0 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -11.6 °C
Number of sunny days: 203 days
Number of rainy days: 157 days
Number of snow days: 5 days
Look at detailed online map of Jamestown
* Weather data for Jamestown 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) | 16.4 | 18.3 | 23.0 | 28.7 | 31.2 | 37.9 | 38.4 | 38.3 | 34.8 | 31.0 | 25.6 | 17.1 |
| Average daytime temperature (°C) | 7.4 | 10.9 | 12.0 | 20.5 | 26.0 | 30.3 | 32.0 | 30.6 | 28.2 | 20.3 | 14.0 | 9.8 |
| Average temperature (°C) | 2.4 | 4.1 | 6.0 | 12.8 | 19.1 | 23.4 | 25.4 | 24.6 | 21.3 | 14.8 | 7.9 | 5.3 |
| Average night temperature (°C) | -1.2 | -0.6 | 1.4 | 6.8 | 13.1 | 17.5 | 20.3 | 20.3 | 15.8 | 10.5 | 3.4 | 2.1 |
| Absolute minimum temperature (°C) | -11.1 | -11.6 | -8.3 | 0.4 | 5.4 | 12.1 | 15.1 | 14.1 | 10.4 | -2.0 | -5.8 | -5.0 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.5 | 7.6 | 7.0 | 10.3 | 11.2 | 12.5 | 11.2 | 10.3 | 10.4 | 7.7 | 7.4 | 5.9 |
| Precipitation (mm) | 54 | 88 | 103 | 34 | 89 | 70 | 102 | 152 | 35 | 68 | 13 | 78 |
| Sunny days | 18 | 18 | 13 | 24 | 16 | 15 | 13 | 13 | 16 | 16 | 24 | 17 |
| Rainy days | 10 | 9 | 17 | 6 | 15 | 15 | 18 | 18 | 14 | 15 | 6 | 14 |
| Snow days | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Jamestown during the most sunny months:
The largest precipitation sum in Jamestown is at