Average annual temperature is 9.7 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: -20.1 °C
Number of sunny days: 216 days
Number of rainy days: 110 days
Number of snow days: 39 days
Look at detailed online map of Heyburn
* Weather data for Heyburn 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) | 7.4 | 9.4 | 12.8 | 28.7 | 31.0 | 31.2 | 39.4 | 37.6 | 30.6 | 26.8 | 16.8 | 10.0 |
| Average daytime temperature (°C) | 2.4 | 4.7 | 6.1 | 14.2 | 23.5 | 25.2 | 35.0 | 31.5 | 25.4 | 17.6 | 8.7 | 4.8 |
| Average temperature (°C) | -2.0 | -2.1 | 0.3 | 6.6 | 16.0 | 17.8 | 26.3 | 23.3 | 17.2 | 10.1 | 2.7 | -0.3 |
| Average night temperature (°C) | -5.0 | -6.5 | -3.8 | 0.5 | 8.8 | 10.8 | 17.3 | 16.0 | 10.3 | 4.5 | -1.5 | -3.4 |
| Absolute minimum temperature (°C) | -20.1 | -15.2 | -9.7 | -6.3 | 2.0 | 4.0 | 12.1 | 11.6 | 5.4 | -5.7 | -12.2 | -9.9 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.1 | 7.3 | 7.5 | 10.1 | 11.9 | 13.0 | 13.3 | 11.5 | 10.7 | 8.6 | 7.0 | 6.1 |
| Precipitation (mm) | 33 | 24 | 47 | 23 | 22 | 21 | 0 | 19 | 26 | 21 | 47 | 33 |
| Sunny days | 15 | 17 | 7 | 14 | 13 | 15 | 30 | 20 | 21 | 23 | 21 | 20 |
| Rainy days | 10 | 4 | 12 | 10 | 18 | 15 | 1 | 11 | 9 | 8 | 7 | 5 |
| Snow days | 6 | 7 | 12 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The best time to visit Heyburn during the most sunny months:
The largest precipitation sum in Heyburn is at