Average temperature in September is 21.6 °C
Average daytime temperature is 26.8 °C
Average night temperature is 17.6 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: 13.5 °C
Number of sunny days: 15
Number of rainy days: 15
Number of snow days:
Precipitation sum: 92 mm
* Weather data for Montross 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 | 25.9 | 28.7 | 33.3 | 34.9 | 34.7 | 34.9 | 34.2 | 34.4 | 32.6 | 27.9 | 28.3 | 30.8 | 27.9 | 26.9 | 23.5 | 26.3 | 27.5 | 24.5 | 25.7 | 26.6 | 26 | 23 | 19.7 | 21.5 | 21.5 | 19 | 20.2 | 20.2 | 21.8 | 22.7 |
| Apparent max temperature | 26.5 | 31.4 | 35.6 | 36.6 | 37.8 | 37.7 | 39 | 37 | 35.7 | 32.4 | 31.7 | 33.3 | 29.9 | 27.5 | 21.8 | 26.4 | 27.6 | 24.2 | 24.8 | 27.6 | 26.3 | 21.4 | 19.5 | 21.8 | 21.7 | 19.5 | 20.1 | 20.5 | 22.1 | 22.9 |
| Mean temperature | 20.9 | 20.5 | 23.9 | 27.8 | 28.5 | 28.1 | 27.6 | 27.3 | 26.1 | 22.4 | 23.2 | 24.3 | 23.8 | 22.5 | 19.5 | 19.6 | 20 | 19.9 | 19.9 | 19.8 | 20.6 | 19.2 | 17 | 18.7 | 19.1 | 17.6 | 17.3 | 16.5 | 18.6 | 19.1 |
| Apparent mean temperature | 16.5 | 14.3 | 17.7 | 24.6 | 26.1 | 26 | 25.8 | 23 | 23.6 | 22.1 | 21.9 | 21.7 | 22.9 | 17.9 | 12.5 | 14 | 14.1 | 17.7 | 14.7 | 14.4 | 17.5 | 15.9 | 12.9 | 16.7 | 17.6 | 16.2 | 13.7 | 12.3 | 16.2 | 16.2 |
| Minimum temperature | 16.7 | 13.9 | 17.2 | 23.2 | 23.7 | 22.1 | 22.1 | 20.6 | 21 | 19.6 | 19.4 | 19.4 | 20.5 | 18.8 | 15.2 | 14.7 | 15.2 | 17.1 | 15.3 | 14.9 | 16.8 | 16.4 | 14.8 | 16.3 | 16.9 | 16.4 | 14.7 | 13.5 | 16.3 | 16.2 |
| Apparent min temperature | 20.8 | 21.7 | 25.2 | 30.1 | 31 | 31.7 | 31.2 | 29.5 | 28.8 | 26.2 | 26.6 | 27.3 | 25.9 | 22.9 | 17.9 | 19.5 | 19.9 | 20.7 | 19.3 | 20.2 | 21.1 | 18.5 | 15.7 | 19.4 | 19.6 | 17.7 | 16.4 | 15.9 | 18.8 | 19.5 |
| 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 | 13 | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12 | 12 | 11.9 | 11.9 | 11.8 |
| Sunshine duration (h) | 12 | 12 | 11.9 | 11.9 | 11.9 | 11.9 | 10.9 | 11.9 | 9 | 7.8 | 11.1 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 6.4 | 7.8 | 11.4 | 10.8 | 11.4 | 4.7 | 0.5 | 3.1 | 4 | 0 | 8.3 | 2.4 | 5 | 7 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0.9 | 0 | 0.4 | 14 | 8.7 | 0.2 | 0.8 | 0 | 0 | 0 | 0 | 8.6 | 0 | 0.1 | 0 | 0.3 | 47.7 | 8.8 | 0 | 1.3 | 0 | 0.2 | 0.3 | 0.1 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 18 | 8 | 1 | 2 | 0 | 0 | 0 | 0 | 15 | 0 | 1 | 0 | 2 | 24 | 15 | 0 | 9 | 0 | 2 | 3 | 1 |
| Wind speed (m/s) | 11.5 | 10.5 | 14 | 11.2 | 11.8 | 10.1 | 11.2 | 14.7 | 16.5 | 8.9 | 10.1 | 9.1 | 14.3 | 12.6 | 17.5 | 11 | 16.6 | 17.9 | 13 | 9.1 | 11.8 | 21.6 | 29.3 | 16.3 | 12 | 16.1 | 13.5 | 12.7 | 14.8 | 13.5 |
In September 2023, the highest daytime temperature in Montross was 34.9°C.
While the minimum temperature at night dropped to 13.5°C.
The average nighttime and daytime temperatures during September in Montross are 17.6°C and 26.8°C respectively.
The precipitation sum in September is about 92 mm.