Average annual temperature is 22.2 °C
Absolute maximum temperature: 41.4 °C
Absolute minimum temperature: 1.4 °C
Number of sunny days: 149 days
Number of rainy days: 216 days
Look at detailed online map of Foster
* Weather data for Foster 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) | 25.4 | 27.7 | 29.1 | 30.6 | 32.7 | 39.0 | 38.4 | 41.4 | 40.1 | 34.7 | 30.0 | 26.1 |
| Average daytime temperature (°C) | 19.3 | 20.7 | 24.2 | 25.2 | 28.9 | 35.4 | 36.3 | 38.9 | 35.0 | 27.8 | 21.3 | 19.5 |
| Average temperature (°C) | 14.5 | 15.1 | 19.2 | 19.9 | 23.9 | 29.1 | 30.4 | 32.2 | 29.1 | 22.4 | 16.4 | 14.0 |
| Average night temperature (°C) | 10.8 | 10.9 | 15.3 | 15.8 | 20.0 | 24.1 | 25.7 | 26.9 | 24.5 | 18.6 | 12.7 | 9.8 |
| Absolute minimum temperature (°C) | 2.0 | 1.9 | 4.5 | 11.0 | 14.6 | 19.7 | 23.3 | 24.7 | 21.6 | 7.7 | 4.5 | 1.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.3 | 7.4 | 7.6 | 8.1 | 8.8 | 11.8 | 12.3 | 12.1 | 10.8 | 8.3 | 6.4 | 7.7 |
| Precipitation (mm) | 180 | 38 | 126 | 180 | 232 | 47 | 32 | 7 | 62 | 90 | 95 | 95 |
| Sunny days | 12 | 11 | 9 | 7 | 5 | 14 | 14 | 23 | 8 | 15 | 13 | 18 |
| Rainy days | 19 | 17 | 22 | 23 | 26 | 16 | 17 | 8 | 22 | 16 | 17 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Foster during the most sunny months:
The largest precipitation sum in Foster is at