Average temperature in September is 21.7 °C
Average daytime temperature is 27.4 °C
Average night temperature is 17 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: 12.6 °C
Number of sunny days: 12
Number of rainy days: 18
Number of snow days:
Precipitation sum: 96 mm
* Weather data for Millersville United States is based on climate observations for 2023 year
| September (°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 | 29.9 | 30.1 | 31.1 | 31.2 | 28.8 | 30.1 | 26.9 | 27 | 26.9 | 27.5 | 29.1 | 24.9 | 26.3 | 26.4 | 28 | 24.4 | 23.7 | 23.2 | 25 | 27.9 | 27 | 27.9 | 27.5 | 26.8 | 28.8 | 29.8 | 26.4 | 25 | 27 | 28.6 |
| Apparent max temperature | 34.5 | 33 | 34.3 | 34.6 | 33.8 | 34.4 | 29.9 | 28.4 | 29.5 | 30 | 32.4 | 26.8 | 26.1 | 25.8 | 29.8 | 27.8 | 25 | 23.7 | 25.8 | 28.5 | 28.9 | 29.3 | 28.5 | 27.9 | 31.1 | 32 | 29 | 26.8 | 29.9 | 31.1 |
| Mean temperature | 21.8 | 25.2 | 25.1 | 25.6 | 24.4 | 23.8 | 22.9 | 21.4 | 22.1 | 22.1 | 22.8 | 21.3 | 21 | 19.9 | 20.7 | 19.9 | 19.1 | 18.1 | 18.4 | 20.4 | 21.9 | 21.5 | 21.6 | 20 | 21.7 | 22.6 | 21.8 | 20 | 20.9 | 22.2 |
| Apparent mean temperature | 15.8 | 23.5 | 22.4 | 23.8 | 24.4 | 24 | 19.7 | 18 | 17.6 | 18.6 | 18.3 | 19.5 | 17.6 | 11.5 | 13.8 | 16.2 | 14.6 | 12 | 12.4 | 14.9 | 18 | 16.4 | 16.7 | 12.4 | 16.1 | 17.1 | 17.9 | 19.1 | 19 | 19 |
| Minimum temperature | 15.9 | 20.8 | 19.8 | 20.9 | 21.9 | 21 | 18.5 | 17 | 17.6 | 17.7 | 17.2 | 18.4 | 17.1 | 13.8 | 15.2 | 16.4 | 14.8 | 13 | 12.6 | 14.9 | 17.2 | 15.9 | 16.2 | 13.8 | 16.1 | 16.7 | 18 | 17.6 | 17.1 | 17.4 |
| Apparent min temperature | 23.4 | 28.3 | 28.1 | 28.8 | 28 | 27.2 | 25 | 22.8 | 23.4 | 23.8 | 25.1 | 23 | 21.2 | 18.3 | 20 | 21.3 | 19.4 | 17.9 | 18.7 | 20.6 | 23 | 22.4 | 22 | 19.7 | 22.7 | 24 | 23.5 | 21.8 | 23.2 | 24.8 |
| September | 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 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 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) | 11.4 | 11 | 11.9 | 11.3 | 7.3 | 7.4 | 11.3 | 11 | 11.7 | 11.2 | 11.6 | 5 | 10.8 | 11.5 | 11.5 | 7 | 9.9 | 11.3 | 11.4 | 11.4 | 11 | 11.2 | 11.2 | 9.1 | 11 | 11 | 10.6 | 6.1 | 10.4 | 10.8 |
| Precipitation (mm) | 1.5 | 0.5 | 0 | 0.1 | 15.3 | 21.6 | 0.5 | 0.3 | 0.9 | 0.2 | 0.3 | 4.1 | 0 | 0 | 0 | 5.4 | 1.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 0 | 11.8 | 29.9 | 1.7 | 0.5 |
| Precipitation hours | 6 | 2 | 0 | 1 | 8 | 8 | 5 | 3 | 6 | 2 | 2 | 7 | 0 | 0 | 0 | 10 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4 | 12 | 10 | 3 |
| Wind speed (m/s) | 14 | 10.5 | 8.4 | 10.8 | 15.6 | 17.2 | 13.1 | 10.8 | 12.3 | 11 | 10.5 | 14.4 | 12.1 | 14.3 | 12.4 | 10.3 | 17.9 | 13.3 | 10.5 | 11.6 | 13.8 | 11.2 | 11.5 | 11.2 | 11 | 10.2 | 11.2 | 14.9 | 8 | 7.3 |
In September 2023, the highest daytime temperature in Millersville was 31.2°C.
While the minimum temperature at night dropped to 12.6°C.
The average nighttime and daytime temperatures during September in Millersville are 17°C and 27.4°C respectively.
The precipitation sum in September is about 96 mm.