Average annual temperature is 22.8 °C
Absolute maximum temperature: 46.0 °C
Absolute minimum temperature: -0.4 °C
Number of sunny days: 309 days
Number of rainy days: 56 days
Look at detailed online map of San Tan Valley
* Weather data for San Tan Valley 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) | 22.8 | 26.3 | 27.3 | 38.1 | 37.1 | 42.2 | 46.0 | 44.5 | 43.4 | 38.4 | 32.5 | 26.0 |
| Average daytime temperature (°C) | 16.1 | 19.4 | 21.1 | 30.5 | 34.1 | 37.7 | 43.5 | 40.6 | 37.9 | 33.1 | 25.2 | 19.8 |
| Average temperature (°C) | 9.7 | 11.7 | 14.0 | 22.0 | 27.1 | 30.3 | 37.1 | 33.9 | 30.6 | 25.6 | 18.2 | 12.5 |
| Average night temperature (°C) | 5.2 | 6.2 | 8.5 | 13.6 | 19.9 | 22.3 | 30.1 | 27.8 | 23.3 | 18.2 | 11.8 | 7.0 |
| Absolute minimum temperature (°C) | -0.4 | 0.1 | 1.0 | 4.3 | 13.7 | 18.5 | 24.8 | 21.6 | 19.8 | 8.0 | 5.3 | 3.1 |
| 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 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| 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) | 7.6 | 8.8 | 8.9 | 11.9 | 12.7 | 12.9 | 12.8 | 11.3 | 10.8 | 10.3 | 9.0 | 8.2 |
| Precipitation (mm) | 81 | 28 | 38 | 0 | 1 | 0 | 2 | 17 | 32 | 0 | 18 | 43 |
| Sunny days | 21 | 22 | 22 | 30 | 27 | 30 | 28 | 23 | 24 | 30 | 25 | 27 |
| Rainy days | 10 | 6 | 9 | 0 | 4 | 0 | 3 | 8 | 6 | 1 | 5 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Tan Valley is at