Average annual temperature is 10.2 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -27.4 °C
Number of sunny days: 179 days
Number of rainy days: 163 days
Number of snow days: 23 days
Look at detailed online map of Town of Ottawa
* Weather data for Town of Ottawa 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) | 8.6 | 11.0 | 19.9 | 25.9 | 31.3 | 31.9 | 33.4 | 36.1 | 33.7 | 27.2 | 18.4 | 12.9 |
| Average daytime temperature (°C) | 1.3 | 3.2 | 6.2 | 15.0 | 22.0 | 27.0 | 28.2 | 27.2 | 23.9 | 15.7 | 8.1 | 5.3 |
| Average temperature (°C) | -2.3 | -2.1 | 1.0 | 8.8 | 15.1 | 20.4 | 22.6 | 21.8 | 18.9 | 11.6 | 3.6 | 1.9 |
| Average night temperature (°C) | -5.0 | -6.2 | -3.3 | 3.7 | 9.5 | 14.8 | 17.6 | 17.4 | 15.3 | 8.1 | 0.2 | -0.5 |
| Absolute minimum temperature (°C) | -27.4 | -23.6 | -12.9 | -2.3 | 0.0 | 6.6 | 12.4 | 11.1 | 8.0 | -2.7 | -12.2 | -8.0 |
| 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 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 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) | 3.5 | 7.0 | 6.6 | 8.1 | 10.9 | 12.2 | 12.3 | 11.2 | 8.7 | 7.0 | 6.6 | 4.0 |
| Precipitation (mm) | 50 | 89 | 93 | 114 | 39 | 42 | 165 | 120 | 59 | 86 | 41 | 55 |
| Sunny days | 11 | 15 | 8 | 15 | 20 | 21 | 12 | 16 | 13 | 12 | 21 | 15 |
| Rainy days | 14 | 8 | 16 | 15 | 11 | 9 | 19 | 15 | 17 | 18 | 8 | 13 |
| Snow days | 6 | 5 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 |
The best time to visit Town of Ottawa during the most sunny months:
Months with the longest average daylight duration in Town of Ottawa:
The largest precipitation sum in Town of Ottawa is at