Average annual temperature is 12.9 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: -17.3 °C
Number of sunny days: 238 days
Number of rainy days: 112 days
Number of snow days: 15 days
Look at detailed online map of Holly
* Weather data for Holly 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) | 16.3 | 21.9 | 26.2 | 32.4 | 30.8 | 34.7 | 37.4 | 39.2 | 37.8 | 30.1 | 27.4 | 20.2 |
| Average daytime temperature (°C) | 6.8 | 11.0 | 15.1 | 21.2 | 24.6 | 27.5 | 32.2 | 32.9 | 30.3 | 21.9 | 15.5 | 9.7 |
| Average temperature (°C) | -0.3 | 1.1 | 5.8 | 12.3 | 17.9 | 21.1 | 24.8 | 25.5 | 22.6 | 13.9 | 7.0 | 2.5 |
| Average night temperature (°C) | -5.1 | -5.4 | -1.0 | 4.9 | 11.8 | 15.5 | 18.3 | 18.7 | 15.3 | 7.0 | 0.7 | -2.4 |
| Absolute minimum temperature (°C) | -17.3 | -15.5 | -6.4 | -3.6 | 4.6 | 11.4 | 14.2 | 13.6 | 10.2 | -7.5 | -8.3 | -6.2 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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) | 7.3 | 8.5 | 9.3 | 10.5 | 10.2 | 11.3 | 12.1 | 11.9 | 10.9 | 9.8 | 8.2 | 6.7 |
| Precipitation (mm) | 26 | 14 | 15 | 35 | 108 | 90 | 191 | 25 | 36 | 12 | 2 | 30 |
| Sunny days | 22 | 19 | 21 | 21 | 10 | 10 | 18 | 21 | 23 | 25 | 27 | 21 |
| Rainy days | 6 | 4 | 9 | 8 | 21 | 20 | 13 | 10 | 7 | 6 | 1 | 7 |
| Snow days | 3 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The largest precipitation sum in Holly is at