Average annual temperature is 10.7 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: -17.8 °C
Number of sunny days: 229 days
Number of rainy days: 116 days
Number of snow days: 20 days
Look at detailed online map of Hartline
* Weather data for Hartline 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) | 6.9 | 9.9 | 13.0 | 28.2 | 33.3 | 32.8 | 35.7 | 39.0 | 30.2 | 24.2 | 10.7 | 8.2 |
| Average daytime temperature (°C) | 2.1 | 4.1 | 7.8 | 12.9 | 25.3 | 27.1 | 31.7 | 31.0 | 23.7 | 16.0 | 6.0 | 3.8 |
| Average temperature (°C) | -0.9 | -1.0 | 2.4 | 7.5 | 18.5 | 20.8 | 25.3 | 24.3 | 17.4 | 10.3 | 2.1 | 0.9 |
| Average night temperature (°C) | -3.3 | -4.3 | -1.7 | 2.9 | 12.5 | 14.7 | 18.6 | 18.2 | 12.1 | 5.9 | -0.6 | -1.2 |
| Absolute minimum temperature (°C) | -11.5 | -17.8 | -9.9 | -2.8 | 6.7 | 7.8 | 13.6 | 11.5 | 4.8 | -4.9 | -6.5 | -5.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 6.5 | 8.3 | 9.3 | 12.6 | 13.4 | 13.8 | 11.4 | 10.1 | 8.0 | 5.5 | 3.0 |
| Precipitation (mm) | 38 | 21 | 26 | 55 | 28 | 13 | 3 | 13 | 12 | 15 | 35 | 62 |
| Sunny days | 14 | 21 | 11 | 11 | 17 | 24 | 29 | 26 | 23 | 21 | 20 | 12 |
| Rainy days | 12 | 4 | 14 | 18 | 14 | 6 | 2 | 5 | 7 | 10 | 9 | 15 |
| Snow days | 5 | 3 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The best time to visit Hartline during the most sunny months:
Months with the longest average daylight duration in Hartline:
The largest precipitation sum in Hartline is at