Average annual temperature is 8.4 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -22.4 °C
Number of sunny days: 184 days
Number of rainy days: 129 days
Number of snow days: 52 days
Look at detailed online map of Grimes Pass
* Weather data for Grimes Pass 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) | 9.3 | 7.3 | 9.9 | 26.7 | 28.6 | 30.3 | 35.4 | 36.9 | 29.3 | 26.8 | 15.9 | 14.0 |
| Average daytime temperature (°C) | 2.7 | 3.7 | 4.4 | 10.8 | 22.0 | 22.9 | 31.9 | 29.8 | 24.6 | 17.7 | 10.1 | 6.0 |
| Average temperature (°C) | -3.1 | -3.7 | -0.9 | 4.0 | 13.9 | 15.9 | 22.9 | 21.3 | 15.9 | 9.9 | 3.2 | 0.0 |
| Average night temperature (°C) | -7.9 | -9.9 | -5.7 | -2.5 | 5.9 | 8.8 | 12.7 | 13.1 | 8.1 | 3.6 | -1.6 | -4.5 |
| Absolute minimum temperature (°C) | -22.4 | -16.5 | -14.0 | -12.3 | -0.5 | 1.2 | 7.9 | 6.8 | 2.4 | -5.8 | -8.4 | -12.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 5.6 | 6.9 | 6.8 | 9.3 | 11.6 | 11.7 | 13.6 | 11.5 | 10.3 | 8.1 | 6.5 | 5.2 |
| Precipitation (mm) | 53 | 41 | 142 | 57 | 91 | 92 | 2 | 119 | 21 | 45 | 65 | 75 |
| Sunny days | 16 | 12 | 8 | 12 | 9 | 7 | 29 | 15 | 24 | 18 | 18 | 16 |
| Rainy days | 8 | 2 | 11 | 9 | 22 | 23 | 2 | 16 | 6 | 13 | 8 | 9 |
| Snow days | 7 | 14 | 12 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 6 |
The best time to visit Grimes Pass during the most sunny months:
Months with the longest average daylight duration in Grimes Pass:
The largest precipitation sum in Grimes Pass is at