Average annual temperature is 11.0 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 118 days
Number of rainy days: 228 days
Number of snow days: 19 days
Look at detailed online map of Seneca County
* Weather data for Seneca County 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) | 11.8 | 17.3 | 14.0 | 27.6 | 29.3 | 30.7 | 33.8 | 29.2 | 32.1 | 28.8 | 14.8 | 12.8 |
| Average daytime temperature (°C) | 4.4 | 6.1 | 6.3 | 16.6 | 20.1 | 24.2 | 28.0 | 25.1 | 23.3 | 16.9 | 8.7 | 7.0 |
| Average temperature (°C) | 1.5 | 0.7 | 1.8 | 10.0 | 13.2 | 18.8 | 23.4 | 20.8 | 18.7 | 13.3 | 5.0 | 4.1 |
| Average night temperature (°C) | -0.8 | -3.1 | -1.4 | 4.6 | 7.0 | 14.1 | 19.6 | 17.5 | 15.4 | 10.6 | 2.4 | 2.0 |
| Absolute minimum temperature (°C) | -6.2 | -18.9 | -6.9 | -3.3 | 1.5 | 8.8 | 16.5 | 13.3 | 11.2 | 2.7 | -3.3 | -4.6 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.4 | 5.3 | 5.3 | 8.4 | 11.9 | 11.1 | 11.7 | 10.2 | 9.0 | 5.5 | 5.1 | 3.1 |
| Precipitation (mm) | 108 | 76 | 99 | 116 | 46 | 108 | 143 | 136 | 38 | 88 | 80 | 114 |
| Sunny days | 4 | 8 | 9 | 13 | 22 | 9 | 7 | 6 | 17 | 6 | 10 | 7 |
| Rainy days | 21 | 15 | 19 | 17 | 9 | 21 | 24 | 25 | 13 | 25 | 18 | 21 |
| Snow days | 6 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Seneca County during the most sunny months:
Months with the longest average daylight duration in Seneca County:
The largest precipitation sum in Seneca County is at