Climate in Oshkosh: average temperature by month
In Oshkosh the warmest month is July, with 27.3 °C on average in the afternoon; the coolest is January, with -3.1 °C.
Measured at the weather station Green Bay, 63 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | -3.1 °C | -3.5 °C – -2.2 °C |
| February | -1.4 °C | -3.0 °C – 0.9 °C |
| March | 4.6 °C | 1.3 °C – 7.8 °C |
| April | 11.9 °C | 8.1 °C – 15.4 °C |
| May | 19.4 °C | 15.6 °C – 22.9 °C |
| June | 25.0 °C | 23.1 °C – 26.8 °C |
| July | 27.3 °C | 26.8 °C – 27.6 °C |
| August | 26.1 °C | 24.8 °C – 27.2 °C |
| September | 22.3 °C | 19.3 °C – 24.6 °C |
| October | 14.8 °C | 10.9 °C – 19.1 °C |
| November | 6.5 °C | 2.6 °C – 10.7 °C |
| December | -0.3 °C | -2.2 °C – 2.3 °C |