Average annual temperature is 8.5 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -9.9 °C
Number of sunny days: 208 days
Number of rainy days: 122 days
Number of snow days: 35 days
Look at detailed online map of Grass Flat
* Weather data for Grass Flat 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) | 8.0 | 11.9 | 10.0 | 22.1 | 24.5 | 30.5 | 34.9 | 33.7 | 27.4 | 25.8 | 18.7 | 14.0 |
| Average daytime temperature (°C) | 3.2 | 5.0 | 2.8 | 10.5 | 16.2 | 21.4 | 28.9 | 27.0 | 20.6 | 17.9 | 11.2 | 8.3 |
| Average temperature (°C) | -0.4 | -0.3 | -0.9 | 4.5 | 10.1 | 14.5 | 21.5 | 19.5 | 14.0 | 10.8 | 5.1 | 3.0 |
| Average night temperature (°C) | -2.8 | -3.5 | -3.5 | -0.1 | 4.6 | 8.3 | 13.6 | 12.6 | 8.6 | 5.9 | 1.2 | -0.5 |
| Absolute minimum temperature (°C) | -9.9 | -8.7 | -9.2 | -8.3 | -1.6 | 2.4 | 7.0 | 8.5 | 4.8 | -1.7 | -4.0 | -5.6 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 4.8 | 6.6 | 5.5 | 10.7 | 10.8 | 12.7 | 13.6 | 11.8 | 10.5 | 9.3 | 7.8 | 5.3 |
| Precipitation (mm) | 502 | 249 | 509 | 64 | 107 | 56 | 2 | 35 | 65 | 25 | 107 | 188 |
| Sunny days | 11 | 13 | 6 | 19 | 12 | 14 | 29 | 25 | 20 | 23 | 20 | 16 |
| Rainy days | 13 | 4 | 12 | 8 | 19 | 16 | 2 | 6 | 10 | 8 | 9 | 15 |
| Snow days | 7 | 11 | 13 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Grass Flat during the most sunny months:
The largest precipitation sum in Grass Flat is at