Average annual temperature is 17.1 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -4.7 °C
Number of sunny days: 170 days
Number of rainy days: 194 days
Number of snow days: 1 day
Look at detailed online map of Heflin
* Weather data for Heflin 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) | 20.6 | 25.1 | 25.5 | 28.8 | 31.5 | 34.3 | 35.3 | 35.7 | 33.2 | 28.3 | 25.1 | 20.4 |
| Average daytime temperature (°C) | 14.7 | 17.7 | 19.1 | 22.4 | 25.8 | 29.8 | 31.9 | 32.2 | 29.1 | 22.9 | 17.3 | 13.7 |
| Average temperature (°C) | 9.6 | 12.2 | 13.0 | 16.1 | 19.8 | 23.4 | 25.7 | 25.8 | 22.7 | 17.2 | 11.5 | 8.5 |
| Average night temperature (°C) | 5.8 | 8.2 | 7.9 | 11.0 | 14.9 | 18.1 | 20.9 | 21.1 | 17.6 | 12.6 | 7.0 | 4.3 |
| Absolute minimum temperature (°C) | -3.4 | -3.5 | -4.7 | 4.8 | 7.2 | 15.4 | 18.5 | 16.5 | 13.2 | 4.6 | -3.7 | -2.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 5.8 | 6.6 | 8.8 | 9.6 | 10.5 | 11.3 | 11.5 | 10.7 | 10.7 | 8.7 | 6.9 | 6.6 |
| Precipitation (mm) | 148 | 154 | 171 | 174 | 73 | 98 | 162 | 147 | 56 | 35 | 51 | 38 |
| Sunny days | 12 | 9 | 19 | 12 | 8 | 11 | 7 | 11 | 15 | 21 | 21 | 24 |
| Rainy days | 18 | 19 | 12 | 18 | 23 | 19 | 24 | 20 | 15 | 10 | 9 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heflin during the most sunny months:
The largest precipitation sum in Heflin is at