Weather in Appleton in September
How warm is it in Appleton in September?
In September the typical daytime high in Appleton is 22.4 °C on average, from 24.7 °C at the start to 19.4 °C at the end of the month.
That is 3.8 °C cooler than in August and 7.5 °C warmer than in October.
The last 10 years were 2.3 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
Measured at the weather station Green Bay, 36 km away.