Average temperature in January is -10.1 °C
Average daytime temperature is -6.7 °C
Average night temperature is -13.1 °C
Absolute maximum temperature: 1.3 °C
Absolute minimum temperature: -28.9 °C
Number of sunny days: 24
Number of rainy days: 2
Number of snow days: 5
Precipitation sum: 9 mm
* Weather data for Wilton 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 | -9.1 | -8.5 | -10.3 | -9.9 | -8.3 | -10.5 | -7.6 | -6.6 | -4.2 | -3.4 | -5.5 | -7.9 | -2.7 | -2.5 | -2.5 | -3.9 | -6.8 | -7.1 | -5.4 | -4.4 | -5.4 | -6.4 | -1.1 | -0.5 | -5.7 | 1.3 | 1.2 | -12.2 | -19 | -17.3 | -14 |
| Apparent max temperature | -14.7 | -12.9 | -14 | -15.3 | -13.5 | -14.8 | -13.6 | -10.8 | -9.1 | -7.1 | -11 | -12.3 | -9.1 | -7 | -5.3 | -8.3 | -12.6 | -11.4 | -9.2 | -9.2 | -10.3 | -11.9 | -8.8 | -7.7 | -11.6 | -6.5 | -7.3 | -19 | -26.5 | -24.4 | -19.2 |
| Mean temperature | -11.1 | -11.2 | -12.3 | -11.3 | -10.2 | -12 | -11.3 | -9.7 | -11.1 | -7.8 | -7.4 | -10.1 | -8.2 | -4.7 | -3.9 | -4.9 | -8.3 | -8.8 | -8.1 | -5.5 | -8.3 | -11 | -3.1 | -4.1 | -10.4 | -6.3 | -5.4 | -18.6 | -23 | -24.2 | -21.2 |
| Apparent mean temperature | -20.3 | -19.8 | -19 | -18.2 | -18.6 | -19 | -19.2 | -18.6 | -19.6 | -16.5 | -16.3 | -17.7 | -19 | -11.9 | -10.7 | -12.5 | -14.8 | -14.7 | -14.2 | -12.6 | -17.4 | -21.9 | -13.6 | -12.9 | -18.9 | -15.6 | -17.5 | -28.5 | -32.6 | -35.1 | -32.7 |
| Minimum temperature | -14.2 | -14.6 | -14.2 | -12.5 | -13.6 | -14.1 | -13.9 | -13.6 | -14.5 | -11 | -9.9 | -11.9 | -12.2 | -6.1 | -6.5 | -6.3 | -9.4 | -9.9 | -10.3 | -6.7 | -11.5 | -16.8 | -7.9 | -8.2 | -12.5 | -10.2 | -8.9 | -22.9 | -25.8 | -28.9 | -26.8 |
| Apparent min temperature | -16.8 | -16.1 | -17.2 | -16.6 | -15.3 | -16.5 | -17.8 | -14.8 | -16.3 | -12.8 | -13.5 | -15.5 | -15.4 | -10.4 | -8.3 | -10.2 | -13.4 | -13.3 | -12.2 | -10.6 | -13.8 | -16.1 | -10.3 | -10.3 | -16.5 | -12.1 | -13.6 | -24.9 | -30 | -31 | -27.2 |
| 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) | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.7 | 8.7 | 8.7 | 8.7 | 8.8 | 8.8 | 8.8 | 8.9 | 8.9 | 8.9 | 8.9 | 9 | 9 | 9.1 | 9.1 | 9.1 | 9.2 | 9.2 | 9.2 | 9.3 | 9.3 | 9.4 | 9.4 | 9.5 | 9.5 | 9.6 |
| Sunshine duration (h) | 0.7 | 6.7 | 0.1 | 0.9 | 7.4 | 4.3 | 4.7 | 7.5 | 2.6 | 3.6 | 0 | 0.2 | 4.1 | 3.8 | 7 | 0 | 0 | 0 | 0 | 0.2 | 7.9 | 7.9 | 5 | 4 | 2.2 | 0.9 | 2.2 | 8.1 | 8.1 | 8.2 | 8.2 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 2.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0.8 | 0.3 | 3.4 | 0.9 | 0.1 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 4 | 6 | 1 | 0 | 0 | 0 |
| Wind speed (m/s) | 20 | 16.4 | 15 | 17.3 | 17.1 | 10.5 | 26.9 | 21.2 | 19 | 18.1 | 24.6 | 21.7 | 33.7 | 23.8 | 20.3 | 23.4 | 19.7 | 11.8 | 10 | 21.1 | 20.5 | 17.1 | 37.7 | 35.4 | 34 | 38.2 | 59.8 | 22.8 | 27 | 25.4 | 26.3 |
In January 2023, the highest daytime temperature in Wilton was 1.3°C.
While the minimum temperature at night dropped to -28.9°C.
The average nighttime and daytime temperatures during January in Wilton are -13.1°C and -6.7°C respectively.
The precipitation sum in January is about 9 mm.