Average annual temperature is 10.5 °C
Absolute maximum temperature: 31.1 °C
Absolute minimum temperature: -6.2 °C
Number of sunny days: 175 days
Number of rainy days: 188 days
Number of snow days: 2 days
Look at detailed online map of John Sam Lake
* Weather data for John Sam Lake 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 | 12.0 | 16.3 | 23.0 | 28.6 | 27.1 | 28.8 | 31.1 | 26.3 | 24.8 | 15.9 | 14.3 |
| Average daytime temperature (°C) | 8.6 | 7.5 | 10.6 | 12.1 | 19.5 | 20.7 | 24.6 | 25.4 | 20.5 | 15.9 | 10.1 | 9.1 |
| Average temperature (°C) | 5.1 | 3.9 | 5.4 | 7.6 | 13.9 | 15.0 | 18.1 | 19.0 | 14.8 | 10.8 | 5.8 | 6.3 |
| Average night temperature (°C) | 2.9 | 1.5 | 2.0 | 4.5 | 9.9 | 10.8 | 12.6 | 13.9 | 11.0 | 7.5 | 3.1 | 4.2 |
| Absolute minimum temperature (°C) | -3.6 | -6.2 | -3.3 | -0.3 | 5.6 | 7.3 | 10.1 | 10.8 | 5.4 | -2.2 | -3.4 | -2.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.4 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.4 | 4.0 | 6.9 | 6.3 | 11.1 | 11.3 | 13.4 | 11.4 | 8.4 | 6.2 | 5.3 | 2.5 |
| Precipitation (mm) | 114 | 112 | 91 | 155 | 35 | 25 | 13 | 52 | 63 | 93 | 123 | 212 |
| Sunny days | 7 | 7 | 10 | 6 | 22 | 21 | 26 | 20 | 20 | 14 | 15 | 7 |
| Rainy days | 23 | 20 | 21 | 24 | 9 | 9 | 5 | 11 | 10 | 17 | 15 | 24 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit John Sam Lake during the most sunny months:
Months with the longest average daylight duration in John Sam Lake:
The largest precipitation sum in John Sam Lake is at