Average annual temperature is 10.0 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -27.5 °C
Number of sunny days: 185 days
Number of rainy days: 153 days
Number of snow days: 27 days
Look at detailed online map of Town of Oconomowoc
* Weather data for Town of Oconomowoc 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) | 8.3 | 10.9 | 19.8 | 25.8 | 31.0 | 31.3 | 33.5 | 35.6 | 32.9 | 27.4 | 18.1 | 12.7 |
| Average daytime temperature (°C) | 1.3 | 3.1 | 6.0 | 14.6 | 21.8 | 26.7 | 27.9 | 26.8 | 23.7 | 15.6 | 8.0 | 5.3 |
| Average temperature (°C) | -2.5 | -2.2 | 0.9 | 8.6 | 14.9 | 20.2 | 22.3 | 21.5 | 18.8 | 11.5 | 3.4 | 1.7 |
| Average night temperature (°C) | -5.2 | -6.4 | -3.4 | 3.4 | 9.1 | 14.6 | 17.3 | 17.1 | 15.3 | 8.0 | -0.1 | -0.8 |
| Absolute minimum temperature (°C) | -27.5 | -24.0 | -13.0 | -2.5 | -0.1 | 6.7 | 12.7 | 10.9 | 9.7 | -2.8 | -12.4 | -8.2 |
| 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 | 9.7 | 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 | 8.0 |
| Sunshine mean duration (h) | 3.4 | 6.9 | 6.7 | 8.0 | 10.7 | 12.2 | 12.5 | 11.2 | 8.7 | 7.0 | 6.6 | 4.0 |
| Precipitation (mm) | 46 | 84 | 86 | 116 | 40 | 39 | 110 | 123 | 51 | 84 | 40 | 49 |
| Sunny days | 13 | 16 | 12 | 13 | 18 | 22 | 12 | 16 | 14 | 12 | 21 | 16 |
| Rainy days | 8 | 8 | 11 | 17 | 13 | 8 | 19 | 15 | 16 | 17 | 8 | 13 |
| Snow days | 10 | 4 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 2 |
The best time to visit Town of Oconomowoc during the most sunny months:
Months with the longest average daylight duration in Town of Oconomowoc:
The largest precipitation sum in Town of Oconomowoc is at