Average annual temperature is 10.0 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -22.9 °C
Number of sunny days: 203 days
Number of rainy days: 136 days
Number of snow days: 26 days
Look at detailed online map of Boundary County
* Weather data for Boundary County 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) | 9.0 | 8.0 | 12.8 | 27.1 | 30.8 | 31.7 | 35.6 | 39.5 | 29.5 | 24.6 | 11.5 | 8.7 |
| Average daytime temperature (°C) | 3.3 | 4.4 | 8.2 | 13.6 | 23.8 | 25.7 | 30.9 | 31.2 | 23.2 | 15.9 | 7.5 | 5.4 |
| Average temperature (°C) | -0.6 | -0.9 | 1.8 | 7.2 | 16.5 | 18.9 | 22.9 | 22.8 | 16.2 | 9.8 | 3.0 | 1.5 |
| Average night temperature (°C) | -3.4 | -4.7 | -3.0 | 2.0 | 10.3 | 12.7 | 15.1 | 15.9 | 11.1 | 5.5 | 0.0 | -1.0 |
| Absolute minimum temperature (°C) | -19.2 | -22.9 | -6.2 | -4.7 | 4.8 | 6.5 | 11.2 | 10.9 | 6.1 | -5.2 | -6.1 | -5.6 |
| 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 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.8 | 10.2 | 11.9 | 13.7 | 15.3 | 16.1 | 15.7 | 14.3 | 12.6 | 10.8 | 9.2 | 8.3 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.4 | 5.2 | 8.4 | 9.0 | 12.0 | 12.7 | 14.3 | 11.5 | 9.3 | 7.9 | 5.0 | 3.3 |
| Precipitation (mm) | 41 | 41 | 37 | 78 | 43 | 33 | 1 | 36 | 31 | 28 | 78 | 102 |
| Sunny days | 17 | 11 | 16 | 11 | 15 | 21 | 29 | 24 | 15 | 20 | 12 | 12 |
| Rainy days | 12 | 10 | 6 | 17 | 16 | 9 | 2 | 7 | 15 | 11 | 17 | 14 |
| Snow days | 2 | 7 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The best time to visit Boundary County during the most sunny months:
Months with the longest average daylight duration in Boundary County:
The largest precipitation sum in Boundary County is at