Average annual temperature is 16.4 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 177 days
Number of rainy days: 188 days
Look at detailed online map of Old Washington
* Weather data for Old Washington 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) | 18.8 | 25.5 | 25.3 | 28.1 | 29.7 | 32.9 | 36.0 | 38.2 | 33.2 | 29.7 | 26.1 | 18.1 |
| Average daytime temperature (°C) | 12.4 | 16.0 | 16.8 | 20.9 | 25.9 | 29.1 | 32.0 | 31.0 | 29.4 | 23.4 | 17.5 | 12.6 |
| Average temperature (°C) | 7.7 | 10.2 | 10.8 | 14.8 | 19.5 | 22.8 | 25.7 | 25.3 | 23.1 | 17.2 | 11.3 | 7.7 |
| Average night temperature (°C) | 4.3 | 5.9 | 6.2 | 9.7 | 14.3 | 17.4 | 20.6 | 21.1 | 18.0 | 12.1 | 6.5 | 3.9 |
| Absolute minimum temperature (°C) | -3.8 | -4.6 | -4.4 | 3.7 | 4.9 | 11.6 | 17.4 | 16.8 | 13.0 | 4.8 | -3.2 | -3.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.1 | 5.7 | 8.3 | 8.9 | 11.2 | 10.9 | 11.2 | 9.7 | 11.0 | 8.3 | 7.5 | 6.6 |
| Precipitation (mm) | 137 | 119 | 142 | 103 | 76 | 138 | 102 | 117 | 14 | 15 | 36 | 95 |
| Sunny days | 12 | 12 | 18 | 14 | 14 | 11 | 4 | 13 | 19 | 20 | 20 | 20 |
| Rainy days | 19 | 16 | 13 | 16 | 17 | 19 | 27 | 18 | 11 | 11 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Old Washington during the most sunny months:
The largest precipitation sum in Old Washington is at