Average annual temperature is 13.1 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 178 days
Number of rainy days: 180 days
Number of snow days: 7 days
Look at detailed online map of Hartsville
* Weather data for Hartsville 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) | 17.3 | 21.1 | 22.8 | 27.2 | 29.8 | 32.4 | 33.9 | 33.9 | 32.0 | 30.0 | 25.2 | 15.2 |
| Average daytime temperature (°C) | 7.0 | 11.5 | 11.9 | 18.5 | 23.1 | 27.5 | 29.3 | 28.1 | 26.4 | 20.0 | 12.9 | 8.9 |
| Average temperature (°C) | 3.3 | 4.8 | 5.8 | 11.6 | 17.0 | 21.4 | 23.9 | 22.8 | 20.5 | 14.3 | 7.1 | 4.5 |
| Average night temperature (°C) | 0.2 | 0.3 | 1.2 | 6.1 | 11.3 | 16.1 | 19.1 | 18.0 | 15.4 | 9.9 | 2.8 | 1.2 |
| Absolute minimum temperature (°C) | -7.5 | -10.4 | -7.7 | -2.5 | 3.4 | 10.2 | 15.2 | 12.2 | 10.9 | -3.9 | -8.1 | -7.1 |
| 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 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 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) | 3.9 | 7.4 | 7.1 | 8.9 | 10.3 | 10.5 | 11.7 | 11.2 | 10.1 | 7.2 | 7.9 | 4.5 |
| Precipitation (mm) | 125 | 60 | 188 | 106 | 62 | 61 | 144 | 90 | 19 | 68 | 27 | 41 |
| Sunny days | 9 | 15 | 15 | 14 | 16 | 13 | 8 | 15 | 20 | 19 | 22 | 12 |
| Rainy days | 18 | 13 | 14 | 16 | 15 | 17 | 23 | 16 | 10 | 12 | 8 | 18 |
| Snow days | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Hartsville during the most sunny months:
The largest precipitation sum in Hartsville is at