Average annual temperature is 24.1 °C
Absolute maximum temperature: 28.6 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of Saint Louis Heights
* Weather data for Saint Louis Heights 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) | 26.0 | 25.9 | 25.3 | 25.6 | 25.9 | 27.1 | 27.4 | 27.4 | 28.6 | 28.4 | 27.3 | 26.1 |
| Average daytime temperature (°C) | 24.5 | 24.0 | 24.1 | 24.5 | 24.9 | 25.9 | 26.4 | 26.8 | 27.0 | 27.1 | 25.9 | 24.5 |
| Average temperature (°C) | 23.0 | 22.8 | 23.0 | 23.2 | 23.7 | 24.6 | 25.0 | 25.4 | 25.5 | 25.2 | 24.5 | 23.2 |
| Average night temperature (°C) | 21.7 | 21.8 | 22.0 | 22.1 | 22.8 | 23.7 | 24.0 | 24.3 | 24.4 | 23.8 | 23.4 | 21.9 |
| Absolute minimum temperature (°C) | 19.8 | 19.6 | 18.9 | 20.8 | 21.0 | 22.2 | 22.8 | 23.0 | 23.6 | 21.3 | 21.4 | 19.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.5 | 9.4 | 10.3 | 10.2 | 11.3 | 12.4 | 12.2 | 12.0 | 11.2 | 10.7 | 9.2 | 8.8 |
| Precipitation (mm) | 25 | 82 | 59 | 95 | 28 | 18 | 10 | 11 | 11 | 9 | 75 | 24 |
| Sunny days | 18 | 8 | 9 | 5 | 7 | 8 | 14 | 11 | 9 | 15 | 8 | 11 |
| Rainy days | 13 | 20 | 22 | 25 | 24 | 22 | 17 | 20 | 21 | 16 | 22 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Saint Louis Heights is at