Average temperature in January is 14.5 °C
Average daytime temperature is 20.9 °C
Average night temperature is 9.7 °C
Absolute maximum temperature: 27.4 °C
Absolute minimum temperature: -0.5 °C
Number of sunny days: 19
Number of rainy days: 12
Number of snow days:
Precipitation sum: 54 mm
* Weather data for Trenton United States is based on climate observations for 2023 year
| Gennaio (°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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 24.3 | 25.5 | 25.9 | 23.8 | 23.7 | 17.1 | 18.5 | 22 | 21 | 18.8 | 22.3 | 23 | 17.3 | 10.3 | 12.6 | 17 | 20.1 | 24 | 24.9 | 23 | 15.2 | 24.8 | 19.9 | 20 | 25 | 18.4 | 13.9 | 17 | 25.4 | 27.4 | 26.6 |
| Apparent max temperature | 26.7 | 27.6 | 26.2 | 24.7 | 22.6 | 14.7 | 16.4 | 21.6 | 20.3 | 17.3 | 21.1 | 20.5 | 17.1 | 5.3 | 10.4 | 14.9 | 18.2 | 24.3 | 24.9 | 21.4 | 13.1 | 24.7 | 20.1 | 18 | 24.6 | 19.1 | 10.8 | 14.2 | 25.6 | 29.3 | 28.7 |
| Mean temperature | 19.6 | 19.1 | 20.4 | 20.4 | 19.1 | 12.7 | 10.2 | 12.5 | 15.2 | 12.2 | 12.7 | 15.1 | 15.3 | 6.4 | 5.3 | 7 | 10.5 | 16.6 | 17.6 | 17.8 | 12.3 | 17.4 | 15 | 11 | 19.2 | 12.9 | 8.5 | 8.7 | 17 | 20.2 | 20.5 |
| Apparent mean temperature | 18.5 | 17.6 | 17.8 | 20.7 | 14.7 | 4.7 | 0.6 | 2.3 | 9 | 4.9 | 4.5 | 6.1 | 7.7 | -2.3 | -4.3 | -3.8 | 0.7 | 12 | 12.8 | 12 | 7.3 | 9.2 | 8.3 | 0.8 | 13.7 | 3.4 | 0.9 | -0.9 | 9.8 | 15.7 | 17 |
| Minimum temperature | 17.2 | 16.1 | 17.3 | 19.2 | 14.5 | 8 | 3.7 | 5 | 10.4 | 7 | 7 | 8.3 | 11.6 | 2.8 | -0.4 | -0.5 | 3.5 | 12.6 | 13.1 | 13 | 10.7 | 11.9 | 11.3 | 4.5 | 15.7 | 6.7 | 4.2 | 3.1 | 12.1 | 14.9 | 15.7 |
| Apparent min temperature | 21.9 | 21 | 21.3 | 21.9 | 19.5 | 9.9 | 7.9 | 10.9 | 14.3 | 10.4 | 11.3 | 13.2 | 13.2 | 1.5 | 2 | 4.3 | 7.9 | 16.3 | 17.4 | 17.6 | 9.9 | 16.7 | 13.2 | 8.3 | 18.2 | 10.9 | 5.4 | 5.2 | 16.4 | 21.7 | 22.5 |
| Gennaio | 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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.8 |
| Sunshine duration (h) | 3.2 | 6.3 | 9.2 | 1.2 | 9.2 | 9.4 | 9.4 | 9.1 | 9.4 | 9.3 | 9.4 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9 | 9.6 | 0.5 | 9.6 | 9.6 | 9.4 | 8 | 9.7 | 9.7 | 9.2 | 9.2 | 9.7 | 8 |
| Precipitation (mm) | 0.2 | 0 | 0.3 | 11.3 | 3.7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 2.2 | 0 | 6 | 0.7 | 1.7 | 0 | 3.2 | 5.2 | 0 | 0 | 0 | 4.4 | 0 |
| Precipitation hours | 1 | 0 | 2 | 7 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4 | 3 | 2 | 0 | 2 | 3 | 0 | 0 | 0 | 3 | 0 |
| Wind speed (m/s) | 10.4 | 8.9 | 22.7 | 22.8 | 17.3 | 13.5 | 9.4 | 10.5 | 13.4 | 9.8 | 12 | 17.1 | 21.5 | 20.9 | 11.2 | 11.9 | 16.8 | 12.3 | 22.1 | 15.5 | 13.7 | 30.8 | 20.4 | 14.8 | 32.2 | 16.4 | 12.3 | 16.9 | 15.5 | 14.3 | 11.6 |
In January 2023, the highest daytime temperature in Trenton was 27.4°C.
While the minimum temperature at night dropped to -0.5°C.
The average nighttime and daytime temperatures during January in Trenton are 9.7°C and 20.9°C respectively.
The precipitation sum in January is about 54 mm.