United States
Weather in Waukesha through the year
The average of the weather stations Green Bay (166 km), Rock Is L&D (254 km) and Cedar Rapids (295 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | -2.0 °C | -2.5 °C – -1.1 °C |
| February | 0.2 °C | -1.6 °C – 2.7 °C |
| March | 6.8 °C | 3.2 °C – 10.0 °C |
| April | 14.1 °C | 10.4 °C – 17.4 °C |
| May | 21.1 °C | 17.5 °C – 24.5 °C |
| June | 26.5 °C | 24.6 °C – 28.0 °C |
| July | 28.4 °C | 28.1 °C – 28.6 °C |
| August | 27.2 °C | 26.2 °C – 28.1 °C |
| September | 23.7 °C | 20.8 °C – 26.0 °C |
| October | 16.3 °C | 12.2 °C – 20.6 °C |
| November | 7.7 °C | 3.7 °C – 11.9 °C |
| December | 0.8 °C | -1.1 °C – 3.4 °C |