Average annual temperature is 21.3 °C
Absolute maximum temperature: 40.5 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 161 days
Number of rainy days: 204 days
Look at detailed online map of Barnwell
* Weather data for Barnwell 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) | 22.7 | 23.5 | 25.3 | 27.2 | 31.9 | 34.0 | 35.3 | 40.5 | 34.5 | 32.3 | 26.2 | 22.5 |
| Average daytime temperature (°C) | 17.7 | 19.4 | 21.4 | 23.8 | 27.3 | 30.0 | 31.8 | 35.0 | 31.8 | 26.0 | 20.6 | 16.8 |
| Average temperature (°C) | 14.3 | 16.0 | 17.9 | 20.1 | 23.6 | 26.6 | 28.8 | 30.7 | 27.3 | 21.4 | 16.1 | 13.0 |
| Average night temperature (°C) | 11.1 | 13.3 | 14.9 | 16.7 | 19.9 | 23.2 | 25.9 | 27.2 | 23.4 | 17.4 | 12.6 | 9.6 |
| Absolute minimum temperature (°C) | 2.1 | 3.0 | 1.7 | 11.9 | 12.6 | 20.4 | 23.0 | 23.2 | 20.0 | 11.5 | 3.4 | 3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.3 | 8.0 | 9.4 | 9.6 | 11.2 | 11.6 | 11.8 | 11.9 | 11.1 | 9.5 | 6.8 | 7.1 |
| Precipitation (mm) | 215 | 67 | 92 | 91 | 75 | 181 | 140 | 54 | 57 | 76 | 151 | 91 |
| Sunny days | 13 | 10 | 14 | 14 | 9 | 8 | 5 | 10 | 14 | 23 | 20 | 21 |
| Rainy days | 18 | 18 | 17 | 16 | 22 | 22 | 26 | 21 | 16 | 8 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Barnwell is at