Average annual temperature is 11.8 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 168 days
Number of rainy days: 189 days
Number of snow days: 8 days
Look at detailed online map of Fostertown
* Weather data for Fostertown 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) | 17.9 | 16.4 | 17.0 | 31.3 | 29.6 | 32.8 | 32.3 | 30.9 | 33.4 | 27.6 | 19.4 | 14.9 |
| Average daytime temperature (°C) | 7.2 | 7.3 | 9.3 | 18.1 | 21.6 | 25.7 | 29.2 | 26.5 | 23.3 | 18.7 | 10.2 | 8.2 |
| Average temperature (°C) | 3.2 | 1.8 | 3.7 | 11.4 | 14.8 | 19.4 | 23.6 | 21.5 | 18.5 | 13.7 | 5.2 | 3.9 |
| Average night temperature (°C) | -0.3 | -2.8 | -1.0 | 6.2 | 8.3 | 14.2 | 19.2 | 17.4 | 14.7 | 9.8 | 1.4 | 0.6 |
| Absolute minimum temperature (°C) | -5.1 | -18.9 | -8.6 | -2.1 | 2.7 | 8.6 | 14.0 | 13.0 | 8.3 | 3.5 | -4.2 | -6.3 |
| 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 | 9.2 |
| 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) | 4.7 | 6.3 | 7.3 | 8.5 | 11.9 | 10.0 | 11.4 | 9.8 | 7.6 | 7.0 | 7.4 | 4.5 |
| Precipitation (mm) | 120 | 54 | 112 | 114 | 40 | 100 | 174 | 130 | 245 | 119 | 68 | 225 |
| Sunny days | 10 | 16 | 11 | 16 | 21 | 10 | 4 | 12 | 12 | 18 | 22 | 16 |
| Rainy days | 20 | 9 | 18 | 14 | 10 | 20 | 27 | 19 | 18 | 13 | 8 | 13 |
| Snow days | 1 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Fostertown during the most sunny months:
The largest precipitation sum in Fostertown is at