Average annual temperature is 8.8 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -21.3 °C
Number of sunny days: 158 days
Number of rainy days: 165 days
Number of snow days: 42 days
Look at detailed online map of Tustin
* Weather data for Tustin 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) | 4.9 | 10.4 | 9.7 | 25.7 | 32.3 | 33.4 | 31.7 | 30.8 | 31.1 | 28.0 | 15.4 | 11.1 |
| Average daytime temperature (°C) | 0.3 | 1.1 | 4.3 | 13.4 | 21.4 | 26.0 | 26.6 | 24.6 | 22.1 | 14.2 | 6.2 | 4.3 |
| Average temperature (°C) | -2.6 | -3.6 | -0.7 | 7.3 | 14.3 | 19.4 | 20.9 | 18.9 | 16.9 | 10.3 | 2.1 | 1.4 |
| Average night temperature (°C) | -5.0 | -8.0 | -4.7 | 2.3 | 8.2 | 13.5 | 15.8 | 14.4 | 13.0 | 7.5 | -0.9 | -0.7 |
| Absolute minimum temperature (°C) | -21.0 | -21.3 | -10.0 | -5.5 | 0.4 | 7.6 | 12.2 | 9.1 | 6.8 | -2.4 | -9.3 | -5.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.5 | 5.4 | 6.9 | 8.2 | 10.5 | 11.8 | 12.7 | 10.7 | 9.0 | 5.5 | 5.2 | 3.3 |
| Precipitation (mm) | 52 | 79 | 73 | 70 | 49 | 50 | 105 | 65 | 34 | 79 | 50 | 47 |
| Sunny days | 11 | 12 | 10 | 11 | 21 | 18 | 8 | 14 | 16 | 9 | 15 | 13 |
| Rainy days | 10 | 6 | 10 | 16 | 10 | 12 | 23 | 17 | 14 | 21 | 11 | 15 |
| Snow days | 10 | 10 | 11 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 3 |
The best time to visit Tustin during the most sunny months:
Months with the longest average daylight duration in Tustin:
The largest precipitation sum in Tustin is at