Average annual temperature is 15.8 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 202 days
Number of rainy days: 163 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) | 18.6 | 24.4 | 26.9 | 29.3 | 29.7 | 31.4 | 35.0 | 35.0 | 35.7 | 28.4 | 27.4 | 20.4 |
| Average daytime temperature (°C) | 12.0 | 15.1 | 16.2 | 21.8 | 24.0 | 27.5 | 31.9 | 31.0 | 27.4 | 22.5 | 16.3 | 12.5 |
| Average temperature (°C) | 7.2 | 9.7 | 10.5 | 15.3 | 18.1 | 21.5 | 26.1 | 25.1 | 21.7 | 16.4 | 10.2 | 7.2 |
| Average night temperature (°C) | 3.7 | 5.6 | 5.6 | 9.5 | 13.2 | 16.4 | 21.1 | 20.3 | 16.8 | 11.7 | 5.2 | 3.3 |
| Absolute minimum temperature (°C) | -4.5 | -5.9 | -4.0 | 1.7 | 6.2 | 12.0 | 18.1 | 17.2 | 12.0 | 5.4 | -5.3 | -3.9 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.0 | 6.7 | 8.3 | 9.0 | 9.8 | 10.7 | 12.0 | 10.7 | 9.5 | 9.1 | 8.0 | 6.4 |
| Precipitation (mm) | 103 | 81 | 73 | 95 | 33 | 78 | 58 | 99 | 35 | 41 | 46 | 160 |
| Sunny days | 15 | 16 | 16 | 15 | 16 | 13 | 15 | 13 | 18 | 23 | 24 | 18 |
| Rainy days | 16 | 12 | 15 | 15 | 15 | 17 | 16 | 18 | 12 | 8 | 6 | 13 |
| Snow days | 0 | 0 | 0 | 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