Average temperature in September is 21.6 °C
Average daytime temperature is 27.8 °C
Average night temperature is 16.3 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 12.2 °C
Number of sunny days: 18
Number of rainy days: 12
Number of snow days:
Precipitation sum: 32 mm
* Weather data for Upton 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 | 29.6 | 31.8 | 32.1 | 32.6 | 30.7 | 30.3 | 26.1 | 27.2 | 26.4 | 27.5 | 28.8 | 24.7 | 25.6 | 25.9 | 25.6 | 27.4 | 24.1 | 24.3 | 25.7 | 28 | 28.4 | 28.7 | 26.7 | 27 | 28.6 | 29.6 | 28.9 | 26 | 27.9 | 28 |
| Apparent max temperature | 33 | 33.9 | 35.1 | 35.2 | 33.5 | 33 | 28.4 | 28.4 | 28.2 | 29.3 | 31.4 | 27.7 | 25.3 | 25.8 | 25.8 | 28.4 | 24.3 | 24.3 | 26 | 28 | 29.3 | 29.7 | 25.7 | 27.9 | 30.3 | 30.6 | 29.6 | 26.2 | 30.1 | 29.7 |
| Mean temperature | 21.3 | 25.5 | 25.3 | 25.4 | 25.9 | 24.6 | 22.5 | 21.1 | 21.6 | 21.9 | 22.5 | 21.1 | 20.1 | 19.4 | 19.1 | 20 | 19.3 | 17.9 | 18.9 | 20.5 | 22 | 22.2 | 21.2 | 19.7 | 21.9 | 22.4 | 22.4 | 20.9 | 20.8 | 21.7 |
| Apparent mean temperature | 14.2 | 24.1 | 21.2 | 20 | 23.7 | 23.4 | 19.2 | 18.5 | 17 | 17.2 | 18.2 | 19.8 | 15.1 | 11.3 | 11.6 | 12.8 | 13.9 | 11.5 | 11.4 | 13.3 | 16.3 | 15.7 | 14.2 | 11.9 | 17.6 | 16 | 16.8 | 17.9 | 16.7 | 16.5 |
| Minimum temperature | 14.8 | 21.1 | 19.2 | 19 | 21.7 | 20.8 | 17.8 | 16.9 | 16.9 | 17 | 16.7 | 18.6 | 15.1 | 12.9 | 13.3 | 14 | 14.2 | 12.2 | 12.4 | 14.4 | 16.5 | 15.8 | 15.2 | 13.8 | 16.8 | 16.1 | 16.3 | 17.2 | 15.5 | 15.9 |
| Apparent min temperature | 22.1 | 28.4 | 27.9 | 27.3 | 28.2 | 27.6 | 24.2 | 22.7 | 22.4 | 22.7 | 24.2 | 22.8 | 20.1 | 18 | 18 | 19.5 | 19.5 | 17.5 | 18.4 | 19.9 | 22.1 | 22.6 | 20.2 | 19 | 22.7 | 22.9 | 22.6 | 21.6 | 22.6 | 22.9 |
| 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 | 13 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 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 | 11.9 |
| Sunshine duration (h) | 12 | 11.6 | 11.9 | 11.8 | 10 | 9.9 | 11.4 | 8.1 | 11.4 | 11.2 | 11.6 | 3.4 | 11.5 | 11.5 | 11.5 | 10.9 | 10.4 | 11.2 | 11.1 | 10.5 | 11.1 | 11.1 | 11.1 | 10 | 9.7 | 11 | 11 | 11 | 11 | 10.9 |
| Precipitation (mm) | 0.5 | 0.1 | 0 | 0.2 | 2.7 | 0.1 | 1.3 | 1.2 | 3.8 | 0.5 | 0 | 1.1 | 0 | 0 | 0 | 0 | 11.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 0 |
| Precipitation hours | 3 | 1 | 0 | 2 | 5 | 1 | 8 | 6 | 7 | 5 | 0 | 4 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 |
| Wind speed (m/s) | 10.7 | 12.4 | 7.2 | 10.6 | 14 | 15.2 | 14.1 | 11.2 | 12.1 | 12.1 | 9.7 | 11 | 13.4 | 11.2 | 13.4 | 10.2 | 12.3 | 12.1 | 10.1 | 12 | 10.7 | 8.8 | 12.3 | 12 | 9.1 | 11.6 | 13.7 | 17.3 | 8 | 10.7 |
In September 2023, the highest daytime temperature in Upton was 32.6°C.
While the minimum temperature at night dropped to 12.2°C.
The average nighttime and daytime temperatures during September in Upton are 16.3°C and 27.8°C respectively.
The precipitation sum in September is about 32 mm.