Average temperature in January is -0.7 °C
Average daytime temperature is 3.7 °C
Average night temperature is -3.9 °C
Absolute maximum temperature: 12.2 °C
Absolute minimum temperature: -14.3 °C
Number of sunny days: 17
Number of rainy days: 7
Number of snow days: 7
Precipitation sum: 52 mm
* Weather data for Princeton United States is based on climate observations for 2023 year
| January (°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 | 9.7 | 7 | 10.3 | 2.9 | 1.7 | 4.1 | 1.3 | 4.5 | 9.6 | 8 | 8 | 4.1 | 0.7 | 5 | 9.2 | 12.2 | 7 | 1.6 | 1.9 | 2.2 | 2.9 | 0.3 | 3.7 | 4.7 | 2.1 | -1.6 | 6.5 | 3 | -4.3 | -8.2 | -3.9 |
| Apparent max temperature | 7.1 | 3.3 | 8.7 | -2.6 | -4 | 1 | -3.7 | -0.2 | 4.6 | 5.5 | 4.7 | 0.3 | -4 | -1.1 | 4.3 | 7.5 | 2.4 | -1.9 | -1.8 | -1.1 | -0.9 | -2.6 | -1.9 | 1.6 | -2.1 | -7.4 | 0.6 | -2.3 | -10.7 | -14.6 | -9.4 |
| Mean temperature | 4.2 | 3.6 | 7.5 | -0.5 | -0.7 | -1.9 | -2.7 | -2.2 | 0.9 | 2.6 | 3.3 | -0.5 | -4.3 | -2.6 | 3.6 | 9.5 | 3.4 | -0.2 | 1 | -1.4 | -1.4 | -0.5 | -2.9 | 0.1 | 0.1 | -6.3 | -0.5 | -1.7 | -9.5 | -11.4 | -10.4 |
| Apparent mean temperature | -4 | -2.8 | -2 | -7.6 | -8.2 | -10 | -11.7 | -9.6 | -7.2 | -5.3 | -4.3 | -10.6 | -13.4 | -11.2 | -5.1 | 2.9 | -4.8 | -6.7 | -6.3 | -8.9 | -8.4 | -5.7 | -10.1 | -6.7 | -8.3 | -17.8 | -12.2 | -8.7 | -19.8 | -19.7 | -18.5 |
| Minimum temperature | -0.5 | 1.5 | 3.7 | -1.8 | -2.7 | -5.9 | -6.4 | -5.9 | -2.7 | -1.7 | -0.7 | -3.5 | -7.9 | -6.6 | 0.8 | 7.9 | 0 | -1.7 | 0.3 | -3.8 | -4.5 | -1.9 | -5.8 | -2.9 | -1.7 | -11.6 | -6.4 | -3.8 | -13 | -13.5 | -14.3 |
| Apparent min temperature | 1 | -0.5 | 4 | -6.2 | -6.4 | -5.7 | -7.7 | -6.3 | -3.5 | -0.7 | -0.1 | -6.6 | -9.9 | -7.6 | -2.2 | 4.6 | -1.5 | -4.7 | -3.8 | -6.3 | -4.9 | -4 | -7.6 | -3.4 | -4.3 | -12.6 | -6.5 | -6.7 | -16.5 | -17.9 | -15.5 |
| January | 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) | 9.3 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 10 | 10 | 10 | 10.1 | 10.1 |
| Sunshine duration (h) | 6.7 | 0 | 0 | 0 | 2.6 | 8.1 | 6.6 | 8.4 | 7.9 | 8.4 | 7.5 | 2.2 | 8.6 | 7.9 | 5.3 | 6.9 | 6.8 | 0 | 0.5 | 8.8 | 3.2 | 1.4 | 7.3 | 5.1 | 3 | 8.9 | 8.9 | 4.2 | 9 | 9 | 9 |
| Precipitation (mm) | 0 | 1.2 | 14.6 | 0.6 | 0.1 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.9 | 0 | 19.2 | 2.5 | 0 | 2 | 4.8 | 0 | 0 | 3.2 | 0 | 0.4 | 0 | 0.3 | 0.1 | 0 |
| Precipitation hours | 0 | 4 | 16 | 5 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 7 | 11 | 0 | 6 | 12 | 0 | 0 | 11 | 0 | 1 | 0 | 3 | 1 | 0 |
| Wind speed (m/s) | 14.8 | 21.1 | 27.2 | 23.8 | 25.5 | 11.5 | 17.6 | 9.9 | 19.2 | 12.4 | 13.7 | 30.6 | 23 | 20.7 | 23.5 | 32.7 | 22.1 | 27.3 | 30.9 | 23.3 | 11.6 | 12.9 | 18.6 | 10.9 | 26.8 | 24.2 | 30.4 | 23.2 | 26.3 | 20.5 | 12.4 |
In January 2023, the highest daytime temperature in Princeton was 12.2°C.
While the minimum temperature at night dropped to -14.3°C.
The average nighttime and daytime temperatures during January in Princeton are -3.9°C and 3.7°C respectively.
The precipitation sum in January is about 52 mm.