Average annual temperature is 18.4 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 174 days
Number of rainy days: 191 days
Look at detailed online map of Simpson
* Weather data for Simpson 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) | 24.0 | 27.1 | 29.2 | 29.7 | 33.4 | 32.4 | 34.9 | 34.9 | 33.9 | 28.1 | 26.7 | 23.1 |
| Average daytime temperature (°C) | 16.8 | 19.4 | 20.5 | 24.3 | 25.8 | 29.5 | 31.9 | 31.9 | 28.3 | 24.0 | 18.6 | 16.1 |
| Average temperature (°C) | 11.3 | 13.6 | 14.6 | 18.3 | 20.2 | 24.0 | 26.9 | 26.6 | 22.9 | 18.3 | 12.9 | 10.7 |
| Average night temperature (°C) | 7.1 | 9.6 | 9.9 | 13.3 | 15.5 | 19.3 | 23.4 | 22.8 | 18.6 | 13.9 | 8.8 | 6.9 |
| Absolute minimum temperature (°C) | -1.2 | -1.8 | -0.2 | 5.5 | 9.6 | 13.9 | 20.4 | 20.0 | 12.9 | 8.1 | -0.7 | -1.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 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 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| 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) | 6.9 | 7.1 | 8.6 | 10.4 | 9.7 | 11.5 | 11.3 | 11.2 | 9.8 | 8.7 | 7.8 | 6.9 |
| Precipitation (mm) | 91 | 139 | 53 | 139 | 98 | 126 | 220 | 169 | 105 | 33 | 62 | 207 |
| Sunny days | 23 | 15 | 15 | 14 | 13 | 7 | 1 | 5 | 16 | 24 | 20 | 21 |
| Rainy days | 8 | 13 | 16 | 16 | 18 | 23 | 30 | 26 | 14 | 7 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Simpson is at