Average annual temperature is 17.4 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 211 days
Number of rainy days: 154 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) | 20.8 | 24.7 | 26.6 | 28.5 | 32.3 | 38.3 | 40.3 | 39.7 | 37.8 | 32.3 | 27.9 | 18.3 |
| Average daytime temperature (°C) | 12.5 | 14.5 | 17.7 | 21.9 | 27.8 | 32.6 | 34.7 | 34.6 | 31.1 | 24.3 | 17.0 | 12.9 |
| Average temperature (°C) | 7.1 | 8.2 | 11.2 | 15.5 | 21.4 | 26.1 | 28.1 | 28.4 | 24.5 | 18.3 | 11.2 | 7.7 |
| Average night temperature (°C) | 3.2 | 4.0 | 6.6 | 10.4 | 16.1 | 20.4 | 23.1 | 23.6 | 19.3 | 13.9 | 6.7 | 4.1 |
| Absolute minimum temperature (°C) | -3.4 | -3.9 | -3.0 | 4.5 | 6.8 | 16.6 | 18.4 | 17.3 | 15.3 | 0.2 | -1.6 | -2.0 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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) | 5.8 | 5.9 | 7.5 | 8.7 | 11.2 | 12.6 | 11.2 | 11.4 | 10.7 | 8.2 | 7.7 | 6.9 |
| Precipitation (mm) | 146 | 145 | 222 | 171 | 99 | 64 | 79 | 81 | 35 | 131 | 38 | 73 |
| Sunny days | 17 | 12 | 14 | 17 | 17 | 15 | 16 | 17 | 24 | 19 | 23 | 20 |
| Rainy days | 14 | 16 | 17 | 13 | 14 | 15 | 15 | 14 | 6 | 12 | 7 | 11 |
| 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