Average annual temperature is 8.8 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -22.0 °C
Number of sunny days: 222 days
Number of rainy days: 89 days
Number of snow days: 54 days
Look at detailed online map of Blackburn
* Weather data for Blackburn 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) | 4.0 | 4.5 | 6.0 | 24.6 | 27.7 | 28.4 | 38.2 | 34.2 | 31.4 | 25.1 | 19.0 | 12.1 |
| Average daytime temperature (°C) | -1.9 | -0.7 | 1.1 | 10.6 | 20.4 | 23.6 | 33.7 | 29.4 | 24.1 | 17.5 | 9.7 | 6.1 |
| Average temperature (°C) | -5.2 | -5.6 | -2.8 | 4.5 | 14.2 | 17.5 | 27.0 | 23.0 | 17.2 | 10.6 | 4.0 | 0.6 |
| Average night temperature (°C) | -8.5 | -9.5 | -6.5 | -0.9 | 7.9 | 10.9 | 19.3 | 16.3 | 10.8 | 4.8 | -0.6 | -2.9 |
| Absolute minimum temperature (°C) | -22.0 | -17.4 | -13.6 | -8.5 | 0.2 | 6.1 | 15.8 | 12.1 | 4.7 | -6.1 | -10.3 | -8.9 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 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) | 5.2 | 8.2 | 8.5 | 11.5 | 11.8 | 12.8 | 13.2 | 11.4 | 10.9 | 9.6 | 7.9 | 6.8 |
| Precipitation (mm) | 71 | 16 | 50 | 12 | 33 | 24 | 1 | 33 | 22 | 11 | 17 | 14 |
| Sunny days | 10 | 17 | 9 | 21 | 16 | 14 | 28 | 18 | 20 | 24 | 24 | 21 |
| Rainy days | 5 | 1 | 6 | 5 | 15 | 16 | 3 | 13 | 10 | 7 | 3 | 5 |
| Snow days | 16 | 10 | 16 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 |
The best time to visit Blackburn during the most sunny months:
The largest precipitation sum in Blackburn is at