Average temperature in September is 21.8 °C
Average daytime temperature is 27.5 °C
Average night temperature is 17.2 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 12.7 °C
Number of sunny days: 18
Number of rainy days: 12
Number of snow days:
Precipitation sum: 87 mm
* Weather data for Clayton 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 | 26.5 | 30.4 | 32.8 | 33.6 | 34.2 | 33.6 | 32.2 | 26.7 | 29.5 | 30.2 | 31.4 | 29.6 | 28.8 | 25.9 | 27.2 | 26 | 26.3 | 26 | 27.5 | 27 | 21.5 | 17 | 25.9 | 27.2 | 23.2 | 21.5 | 24.8 | 25.1 | 26.5 |
| Apparent max temperature | 27.1 | 29.9 | 35.3 | 38.4 | 39.6 | 39.5 | 37.5 | 34.8 | 30.7 | 33.9 | 33.2 | 35.4 | 34 | 29.8 | 24.1 | 27.8 | 25.3 | 25.6 | 27.8 | 28.3 | 27.2 | 21.2 | 15 | 27 | 29.8 | 24.1 | 20.9 | 25.6 | 26.3 | 26 |
| Mean temperature | 20.4 | 20.2 | 22.5 | 25.9 | 27 | 27.6 | 28.2 | 26.3 | 23.4 | 23.6 | 24.1 | 24.8 | 24.1 | 23.5 | 20.8 | 19.3 | 20.2 | 20.8 | 19.8 | 20.8 | 20.5 | 19 | 15.8 | 19.2 | 21.7 | 20.2 | 18.3 | 18.2 | 19.6 | 19.4 |
| Apparent mean temperature | 14.6 | 14 | 17.2 | 22.1 | 24 | 24.7 | 26 | 24.7 | 24.3 | 22.6 | 22.2 | 20.9 | 22.5 | 20.4 | 13.7 | 11.6 | 15.8 | 16.8 | 13.4 | 14.5 | 14.3 | 15.2 | 11.6 | 15.1 | 19.1 | 17.3 | 14.3 | 12.2 | 16.9 | 15.5 |
| Minimum temperature | 15.2 | 13.9 | 16.6 | 20.2 | 21.6 | 21.3 | 22.5 | 21.6 | 21.4 | 19.5 | 19.4 | 18.9 | 19.8 | 19.3 | 15.7 | 12.7 | 16.4 | 16.6 | 14.3 | 14.5 | 14.1 | 16.8 | 14.6 | 15.3 | 17.4 | 16.6 | 14.9 | 13.7 | 16.6 | 15.2 |
| Apparent min temperature | 20.6 | 21.4 | 24.8 | 29.2 | 31 | 32.1 | 31.6 | 28.9 | 27 | 26.9 | 27 | 27.5 | 27.3 | 25.3 | 19.2 | 18.6 | 20.7 | 21.7 | 19.9 | 21.5 | 20.7 | 17.9 | 13.4 | 20 | 24.1 | 21.1 | 17.7 | 17.8 | 20.1 | 19.6 |
| 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) | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.9 |
| Sunshine duration (h) | 11.9 | 11.8 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.7 | 5.3 | 11.7 | 11.7 | 11.7 | 11.1 | 11.6 | 11.6 | 11.6 | 4.6 | 11 | 11.4 | 11.4 | 9.9 | 0.3 | 0 | 11.2 | 10.9 | 9.8 | 7 | 10.7 | 7.6 | 11 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 11.1 | 6.9 | 0.4 | 0 | 1.1 | 0 | 0 | 0 | 13.7 | 3.4 | 0 | 0 | 0 | 9.3 | 36 | 3.6 | 0.6 | 0.1 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 11 | 2 | 0 | 3 | 0 | 0 | 0 | 6 | 6 | 0 | 0 | 0 | 7 | 23 | 6 | 4 | 1 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 12.3 | 10.1 | 9.7 | 10.9 | 9.7 | 8.8 | 14.7 | 17.7 | 14.5 | 9.6 | 11.7 | 8.9 | 15.6 | 13.7 | 16.3 | 9.9 | 11.3 | 15.7 | 10.7 | 8 | 12.7 | 27.1 | 33.9 | 16.6 | 10.9 | 12.7 | 18.2 | 15.2 | 15.2 | 17.1 |
In September 2023, the highest daytime temperature in Clayton was 34.2°C.
While the minimum temperature at night dropped to 12.7°C.
The average nighttime and daytime temperatures during September in Clayton are 17.2°C and 27.5°C respectively.
The precipitation sum in September is about 87 mm.