Average annual temperature is 10.1 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -23.3 °C
Number of sunny days: 182 days
Number of rainy days: 162 days
Number of snow days: 21 days
Look at detailed online map of Milwaukee County
* Weather data for Milwaukee 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) | 8.0 | 9.8 | 19.8 | 26.1 | 28.2 | 32.6 | 32.5 | 37.5 | 34.6 | 27.9 | 19.2 | 13.4 |
| Average daytime temperature (°C) | 1.7 | 3.3 | 5.3 | 14.6 | 18.0 | 24.2 | 27.5 | 26.4 | 23.2 | 16.4 | 8.8 | 5.6 |
| Average temperature (°C) | -1.7 | -1.5 | 1.0 | 8.7 | 12.9 | 18.8 | 22.4 | 21.7 | 19.1 | 12.2 | 4.4 | 2.6 |
| Average night temperature (°C) | -4.1 | -5.5 | -2.5 | 3.8 | 8.2 | 14.0 | 17.9 | 17.8 | 15.8 | 8.8 | 0.9 | 0.2 |
| Absolute minimum temperature (°C) | -23.3 | -22.3 | -12.3 | -2.6 | 1.0 | 7.0 | 13.3 | 11.9 | 8.9 | -2.3 | -11.3 | -7.6 |
| 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 | 14.7 | 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) | 3.8 | 7.1 | 7.0 | 8.5 | 10.7 | 12.1 | 12.1 | 11.3 | 8.9 | 6.7 | 6.6 | 3.9 |
| Precipitation (mm) | 47 | 101 | 87 | 114 | 38 | 43 | 110 | 94 | 79 | 114 | 46 | 60 |
| Sunny days | 13 | 16 | 10 | 14 | 19 | 23 | 11 | 14 | 12 | 14 | 21 | 15 |
| Rainy days | 12 | 9 | 14 | 16 | 12 | 7 | 20 | 17 | 18 | 16 | 7 | 14 |
| Snow days | 6 | 3 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
The best time to visit Milwaukee County during the most sunny months:
Months with the longest average daylight duration in Milwaukee County:
The largest precipitation sum in Milwaukee County is at