Average annual temperature is 11.0 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -13.2 °C
Number of sunny days: 144 days
Number of rainy days: 206 days
Number of snow days: 15 days
Look at detailed online map of Alum Rock
* Weather data for Alum Rock 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) | 14.8 | 19.3 | 18.2 | 27.4 | 32.1 | 33.5 | 31.2 | 31.2 | 32.6 | 27.0 | 15.4 | 14.4 |
| Average daytime temperature (°C) | 5.7 | 9.2 | 8.2 | 17.4 | 21.8 | 24.7 | 27.7 | 26.1 | 23.2 | 16.7 | 9.5 | 7.3 |
| Average temperature (°C) | 1.9 | 2.3 | 2.8 | 10.4 | 14.9 | 18.8 | 22.0 | 20.5 | 17.6 | 12.2 | 4.6 | 3.7 |
| Average night temperature (°C) | -0.8 | -2.6 | -1.4 | 4.7 | 8.0 | 13.4 | 17.0 | 16.0 | 13.2 | 8.5 | 0.9 | 1.1 |
| Absolute minimum temperature (°C) | -7.7 | -13.2 | -7.7 | -4.1 | 0.4 | 8.1 | 13.3 | 11.1 | 7.8 | 0.5 | -7.4 | -5.2 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.6 | 6.4 | 5.9 | 8.3 | 10.8 | 10.7 | 11.3 | 10.8 | 8.7 | 6.0 | 6.7 | 3.7 |
| Precipitation (mm) | 137 | 68 | 120 | 75 | 47 | 126 | 107 | 82 | 50 | 112 | 60 | 93 |
| Sunny days | 7 | 11 | 7 | 15 | 21 | 11 | 5 | 9 | 13 | 15 | 18 | 12 |
| Rainy days | 19 | 14 | 20 | 15 | 10 | 19 | 26 | 22 | 17 | 16 | 11 | 17 |
| Snow days | 5 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Alum Rock during the most sunny months:
The largest precipitation sum in Alum Rock is at