Average annual temperature is 24.5 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 5.4 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Clewiston
* Weather data for Clewiston 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) | 31.7 | 33.6 | 33.9 | 32.5 | 33.6 | 35.1 | 36.1 | 35.4 | 34.2 | 32.2 | 30.1 | 29.3 |
| Average daytime temperature (°C) | 25.1 | 29.1 | 29.7 | 29.3 | 30.8 | 31.5 | 33.5 | 32.9 | 31.1 | 28.7 | 26.2 | 22.9 |
| Average temperature (°C) | 19.9 | 23.1 | 23.8 | 24.4 | 25.8 | 26.5 | 28.3 | 28.4 | 27.2 | 25.0 | 22.6 | 19.4 |
| Average night temperature (°C) | 15.7 | 18.2 | 18.7 | 20.6 | 21.5 | 23.1 | 24.6 | 25.5 | 24.1 | 22.1 | 19.5 | 16.6 |
| Absolute minimum temperature (°C) | 5.4 | 12.0 | 13.2 | 18.3 | 18.1 | 21.4 | 23.2 | 23.3 | 22.2 | 14.6 | 11.9 | 10.4 |
| 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 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.5 | 13.8 | 13.6 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| 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) | 8.5 | 9.9 | 10.5 | 10.4 | 12.1 | 11.6 | 10.6 | 10.8 | 10.0 | 9.7 | 8.6 | 6.9 |
| Precipitation (mm) | 38 | 38 | 25 | 229 | 122 | 172 | 186 | 137 | 187 | 81 | 100 | 72 |
| Sunny days | 21 | 19 | 18 | 2 | 11 | 0 | 3 | 2 | 2 | 16 | 18 | 17 |
| Rainy days | 10 | 9 | 13 | 28 | 20 | 30 | 28 | 29 | 28 | 15 | 12 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Clewiston is at