Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -10.6 °C
Number of sunny days: 180 days
Number of rainy days: 179 days
Number of snow days: 6 days
Look at detailed online map of Heilmandale
* Weather data for Heilmandale 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) | 16.6 | 18.7 | 20.1 | 30.1 | 31.7 | 34.6 | 34.4 | 31.6 | 34.7 | 27.9 | 21.5 | 16.0 |
| Average daytime temperature (°C) | 7.9 | 9.7 | 10.6 | 19.7 | 22.9 | 26.5 | 30.2 | 28.3 | 24.4 | 19.2 | 11.3 | 8.5 |
| Average temperature (°C) | 4.0 | 3.9 | 4.8 | 12.9 | 15.7 | 20.0 | 24.4 | 22.7 | 19.2 | 13.8 | 5.7 | 4.2 |
| Average night temperature (°C) | 0.8 | -1.0 | -0.2 | 6.9 | 8.4 | 14.1 | 19.0 | 17.7 | 14.7 | 9.3 | 1.1 | 0.7 |
| Absolute minimum temperature (°C) | -5.1 | -10.6 | -6.0 | -1.7 | 2.8 | 8.0 | 15.4 | 13.3 | 9.0 | 2.5 | -5.5 | -5.2 |
| 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 | 15.0 | 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 | 9.3 |
| 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) | 4.7 | 6.8 | 7.4 | 9.0 | 11.4 | 10.8 | 11.9 | 10.5 | 8.0 | 8.0 | 7.4 | 4.0 |
| Precipitation (mm) | 87 | 34 | 80 | 115 | 15 | 99 | 92 | 104 | 119 | 60 | 62 | 123 |
| Sunny days | 11 | 18 | 11 | 15 | 21 | 13 | 8 | 14 | 16 | 20 | 19 | 14 |
| Rainy days | 20 | 8 | 19 | 15 | 10 | 17 | 23 | 17 | 14 | 11 | 10 | 15 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Heilmandale during the most sunny months:
The largest precipitation sum in Heilmandale is at