Average annual temperature is 14.3 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -7.5 °C
Number of sunny days: 177 days
Number of rainy days: 184 days
Number of snow days: 4 days
Look at detailed online map of Hecla
* Weather data for Hecla 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) | 18.7 | 24.9 | 24.5 | 29.6 | 29.2 | 33.8 | 35.5 | 34.6 | 35.1 | 29.3 | 25.8 | 20.2 |
| Average daytime temperature (°C) | 10.4 | 14.3 | 14.3 | 20.6 | 23.8 | 27.8 | 31.0 | 29.9 | 27.3 | 20.9 | 14.4 | 11.4 |
| Average temperature (°C) | 5.2 | 7.2 | 7.5 | 13.6 | 17.3 | 21.5 | 24.8 | 23.7 | 21.0 | 15.1 | 8.0 | 5.9 |
| Average night temperature (°C) | 1.8 | 2.4 | 2.5 | 7.7 | 11.7 | 15.9 | 19.9 | 18.9 | 15.7 | 10.6 | 3.5 | 2.2 |
| Absolute minimum temperature (°C) | -5.7 | -7.5 | -7.1 | 0.7 | 5.1 | 11.0 | 16.1 | 13.3 | 10.7 | 3.3 | -6.0 | -4.4 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.5 | 7.1 | 7.5 | 9.5 | 9.6 | 11.3 | 11.8 | 10.4 | 9.7 | 7.4 | 7.2 | 5.5 |
| Precipitation (mm) | 109 | 88 | 86 | 59 | 69 | 58 | 87 | 107 | 60 | 55 | 46 | 94 |
| Sunny days | 7 | 14 | 16 | 17 | 16 | 14 | 8 | 16 | 15 | 16 | 23 | 15 |
| Rainy days | 23 | 12 | 14 | 13 | 15 | 16 | 23 | 15 | 15 | 15 | 7 | 16 |
| Snow days | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hecla during the most sunny months:
The largest precipitation sum in Hecla is at