Average temperature in January is 3 °C
Average daytime temperature is 6.6 °C
Average night temperature is 0.1 °C
Absolute maximum temperature: 17.2 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 8
Number of rainy days: 19
Number of snow days: 4
Precipitation sum: 130 mm
* Weather data for Williamstown 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 | 11 | 14.4 | 17.2 | 13.3 | 5.8 | 3.9 | 3.8 | 4 | 3.8 | 9.3 | 10.5 | 10.5 | 3.6 | 1 | 4.6 | 6.6 | 12.2 | 7.2 | 14.1 | 4.3 | 3.1 | 2.1 | 1.7 | 5.1 | 4.3 | 0.3 | 6.1 | 11.1 | 9.2 | 1.9 | -2.5 |
| Apparent max temperature | 9.3 | 14.1 | 15.2 | 11.4 | 1.1 | -0.2 | 0 | 0.4 | -0.4 | 6.5 | 9.5 | 9.7 | -1.6 | -3.1 | -0.5 | 2 | 7.8 | 4.2 | 11.3 | -2.8 | -0.3 | -1.8 | -2.5 | 2.4 | -1 | -4.7 | -0.8 | 6.1 | 3.9 | -2.3 | -7.1 |
| Mean temperature | 7 | 11 | 15.4 | 11.3 | 2.7 | 1.1 | -0.6 | 0.2 | -0.4 | 3.1 | 5.7 | 8.7 | 1.6 | -1.4 | -1.6 | 1.8 | 10.1 | 3.8 | 9.3 | 1.3 | 0.3 | -0.7 | 0.2 | -0.5 | 1.7 | -0.8 | -2.5 | 4.6 | 6.6 | -0.3 | -5.2 |
| Apparent mean temperature | -0.3 | 7.7 | 11.4 | 1.6 | -4.4 | -5.8 | -7.6 | -7.5 | -8.7 | -4.1 | -0.5 | -1.8 | -6.4 | -8.6 | -9.2 | -6.8 | 2.2 | -2.9 | -2 | -7.6 | -5.5 | -7.4 | -5.8 | -8.5 | -5.2 | -8.6 | -12.9 | -4.5 | -0.5 | -8.2 | -14.1 |
| Minimum temperature | 2.7 | 8.9 | 13.1 | 7.1 | 0.5 | -1.1 | -3.8 | -2.3 | -4.8 | 0.1 | 2.9 | 4.1 | 0.2 | -3.1 | -5 | -0.9 | 7.1 | 0.5 | 5 | -1 | -1.2 | -2.9 | -0.8 | -3.5 | 0.6 | -2.3 | -7.7 | -1.1 | 3.2 | -2.6 | -8.5 |
| Apparent min temperature | 4.3 | 9.8 | 13.4 | 8.5 | -2.2 | -3.6 | -4.5 | -4.3 | -4.5 | -1 | 2.6 | 6.1 | -4.3 | -6.4 | -6 | -3.8 | 6.2 | 0.1 | 4.6 | -5.3 | -3.7 | -4.7 | -4.6 | -4.7 | -3.2 | -6.4 | -8.5 | 0.1 | 2.2 | -4.9 | -10.5 |
| 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) | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 10 | 10 | 10 | 10.1 | 10.1 | 10.1 | 10.2 |
| Sunshine duration (h) | 0 | 0 | 0 | 7 | 5.4 | 3.5 | 8.5 | 1 | 6.6 | 8 | 0.1 | 0 | 1 | 7.6 | 8.5 | 0 | 8.7 | 3.1 | 6.1 | 0.1 | 5.6 | 0 | 5.3 | 8 | 0 | 0.1 | 8.4 | 8.4 | 0 | 0 | 8.7 |
| Precipitation (mm) | 0.2 | 0.3 | 29.6 | 0.1 | 0.2 | 0 | 0 | 0.4 | 0 | 1.7 | 1.5 | 31.9 | 0.2 | 0 | 0 | 5.7 | 1.7 | 2.7 | 22.6 | 1.1 | 0 | 4.9 | 0.8 | 0 | 18.2 | 2 | 0.9 | 0.3 | 2 | 0.8 | 0 |
| Precipitation hours | 1 | 1 | 14 | 1 | 2 | 0 | 0 | 3 | 0 | 2 | 3 | 15 | 2 | 0 | 0 | 6 | 3 | 4 | 14 | 7 | 0 | 9 | 7 | 0 | 15 | 18 | 4 | 2 | 15 | 4 | 0 |
| Wind speed (m/s) | 16.8 | 13.9 | 32.1 | 23.1 | 26.7 | 20.2 | 10.4 | 16.6 | 14.1 | 15.9 | 18.8 | 32.1 | 27.2 | 21.4 | 15.8 | 23.9 | 28.1 | 21.2 | 39.5 | 36.2 | 16.3 | 12.7 | 21.4 | 17.3 | 27.7 | 25.5 | 31.3 | 25.5 | 25.5 | 17.9 | 16.4 |
In January 2023, the highest daytime temperature in Williamstown was 17.2°C.
While the minimum temperature at night dropped to -8.5°C.
The average nighttime and daytime temperatures during January in Williamstown are 0.1°C and 6.6°C respectively.
The precipitation sum in January is about 130 mm.