Average temperature in September is 18.8 °C
Average daytime temperature is 23.8 °C
Average night temperature is 15 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: 9.3 °C
Number of sunny days: 14
Number of rainy days: 16
Number of snow days:
Precipitation sum: 42 mm
* Weather data for Appleton United States is based on climate observations for 2023 year
| Settembre (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 26.3 | 30 | 33.4 | 33.2 | 30.8 | 27.7 | 21.3 | 19.4 | 22.4 | 22.6 | 20.1 | 20.2 | 17.6 | 19.2 | 23.9 | 22.7 | 20.7 | 20.9 | 22 | 25.7 | 25.8 | 26.3 | 24.6 | 20.8 | 22.7 | 22.3 | 18.6 | 21.4 | 22.2 | 27.8 |
| Apparent max temperature | 23.9 | 30.2 | 32.7 | 33.5 | 30.8 | 29.5 | 22.7 | 18.1 | 23.5 | 23.3 | 18.4 | 18.7 | 15.6 | 17.5 | 21 | 23.2 | 18.4 | 18.8 | 20.2 | 25.6 | 26.8 | 24.3 | 22.2 | 18.9 | 21.1 | 20.3 | 17.6 | 21 | 22.2 | 28.9 |
| Mean temperature | 19.5 | 23 | 26.8 | 27.2 | 27.1 | 23.7 | 17.4 | 15.7 | 16.7 | 18.3 | 16.5 | 14.6 | 14 | 14.3 | 17.8 | 18.4 | 16.5 | 14.4 | 16.2 | 19.1 | 20.1 | 20.8 | 21.2 | 17.7 | 18.3 | 18.3 | 17.2 | 16.6 | 17.2 | 19.9 |
| Apparent mean temperature | 14 | 17.6 | 19.6 | 21.6 | 25.6 | 21.7 | 11.5 | 9.6 | 10.9 | 15.2 | 12.9 | 7.5 | 7 | 9.4 | 12.5 | 12.1 | 9.9 | 8.1 | 11.2 | 14.7 | 17.1 | 17.6 | 17.8 | 13.5 | 13.9 | 15.1 | 14.7 | 12.2 | 13.8 | 15.9 |
| Minimum temperature | 15.5 | 19.2 | 21.9 | 21.7 | 23.8 | 20.6 | 13.7 | 11.8 | 11.2 | 15.8 | 13.9 | 9.9 | 9.3 | 10.4 | 14.3 | 12.5 | 12 | 9.4 | 12.5 | 15.5 | 16 | 17.1 | 18.5 | 14.8 | 15.4 | 16.1 | 15.7 | 12.5 | 13.7 | 16.5 |
| Apparent min temperature | 18.1 | 21.6 | 25.6 | 27 | 27.9 | 25.4 | 15.8 | 13.9 | 16.8 | 18.4 | 15.3 | 13 | 12.2 | 13 | 15.9 | 18.1 | 14.8 | 12.9 | 14.8 | 18.7 | 21.6 | 20.4 | 20 | 15.9 | 17.1 | 17.3 | 16.2 | 16 | 16.9 | 20.1 |
| Settembre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 13.2 | 13.2 | 13.1 | 13.1 | 13 | 13 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.8 | 11.8 |
| Sunshine duration (h) | 12.1 | 8 | 12.1 | 12 | 10.2 | 10.9 | 4.9 | 11 | 11.6 | 8.9 | 10.6 | 11.7 | 11.7 | 11.7 | 11 | 10.5 | 10 | 11.5 | 11.4 | 10.5 | 8.4 | 10.5 | 8 | 7.3 | 7.9 | 6 | 2.6 | 6.1 | 8.7 | 8.4 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 14.6 | 0.4 | 0 | 0 | 1.4 | 2.7 | 0.2 | 1.9 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 1 | 0.4 | 9.4 | 0.1 | 5.5 | 1.6 | 2.1 | 0.2 | 0.2 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 9 | 3 | 0 | 0 | 3 | 10 | 2 | 6 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 3 | 2 | 8 | 1 | 8 | 4 | 12 | 2 | 2 | 0 |
| Wind speed (m/s) | 22.8 | 23 | 28.2 | 23.8 | 25.1 | 29.7 | 20.8 | 13.4 | 9.2 | 12.9 | 15.5 | 16.5 | 13 | 10.9 | 24.2 | 14.5 | 16.8 | 14.5 | 22 | 18.1 | 9.9 | 22.3 | 22.5 | 19.4 | 20.4 | 22.2 | 21.7 | 13.3 | 14.6 | 22.5 |
In September 2023, the highest daytime temperature in Appleton was 33.4°C.
While the minimum temperature at night dropped to 9.3°C.
The average nighttime and daytime temperatures during September in Appleton are 15°C and 23.8°C respectively.
The precipitation sum in September is about 42 mm.