Average annual temperature is 23.2 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 1.6 °C
Number of sunny days: 142 days
Number of rainy days: 223 days
Look at detailed online map of Lake Saint Charles
* Weather data for Lake Saint Charles 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) | 28.9 | 31.5 | 31.8 | 34.5 | 35.8 | 35.3 | 36.4 | 38.0 | 34.4 | 31.2 | 32.3 | 28.3 |
| Average daytime temperature (°C) | 23.3 | 27.1 | 27.9 | 30.0 | 31.5 | 31.5 | 33.5 | 34.2 | 32.3 | 28.8 | 25.9 | 22.2 |
| Average temperature (°C) | 17.1 | 20.4 | 21.4 | 23.8 | 24.9 | 26.3 | 28.2 | 28.7 | 26.6 | 23.6 | 20.3 | 17.4 |
| Average night temperature (°C) | 12.6 | 15.5 | 16.3 | 19.0 | 19.7 | 22.3 | 24.5 | 24.5 | 22.5 | 19.3 | 16.0 | 14.1 |
| Absolute minimum temperature (°C) | 1.6 | 7.5 | 7.2 | 13.3 | 15.0 | 19.9 | 22.6 | 22.7 | 19.0 | 10.6 | 6.1 | 6.5 |
| 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) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| 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 | 9.7 | 10.1 | 10.4 | 11.9 | 11.3 | 11.0 | 11.1 | 10.4 | 9.7 | 7.8 | 6.9 |
| Precipitation (mm) | 39 | 22 | 59 | 109 | 145 | 153 | 197 | 182 | 164 | 61 | 27 | 85 |
| Sunny days | 22 | 20 | 15 | 8 | 14 | 4 | 1 | 2 | 5 | 19 | 16 | 16 |
| Rainy days | 9 | 8 | 16 | 22 | 17 | 26 | 30 | 29 | 25 | 12 | 14 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Lake Saint Charles is at