Average temperature in January is 0.6 °C
Average daytime temperature is 4.5 °C
Average night temperature is -2.7 °C
Absolute maximum temperature: 11.3 °C
Absolute minimum temperature: -9.5 °C
Number of sunny days: 8
Number of rainy days: 17
Number of snow days: 6
Precipitation sum: 159 mm
* Weather data for Dover 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 | 11.3 | 8.6 | 4.4 | 8.4 | 4.8 | 1.4 | 6.2 | 2.6 | 4.7 | 1.3 | -0.4 | 2.8 | 10.3 | 5 | 1.9 | 1 | 7.8 | 8.5 | 5.5 | 1.2 | 0.5 | 2.2 | 0.8 | 4 | 0.1 | 8.7 | 2.6 | 7 | 7.4 | 6.3 | 1.9 |
| Apparent max temperature | 8.2 | 4.4 | 2 | 7 | 1.7 | -1.3 | 2 | -1.6 | 0.1 | -3.8 | -4.4 | -0.6 | 8.3 | 1.5 | -4.2 | -3.9 | 4.2 | 4.1 | 2.1 | -2.3 | -3.7 | -1 | -3.6 | -1.7 | -3.5 | 6.6 | -0.9 | 1.9 | 3.7 | 2.7 | -0.6 |
| Mean temperature | 9 | 3.8 | 1.3 | 4 | 2.4 | 0.3 | 1.1 | -2.4 | -1.4 | -1.3 | -4.7 | -0.9 | 6.8 | 1.2 | 0.1 | -0.7 | 1.5 | 4 | 2.6 | 0.1 | -2.4 | -4.9 | -0.3 | -0.4 | -1.9 | 4.1 | -2.5 | -1.5 | -0.5 | 2.9 | -0.9 |
| Apparent mean temperature | 3.3 | -4.1 | -5.1 | -1 | -3.8 | -4.2 | -5.3 | -10.7 | -9.1 | -8.2 | -12.4 | -8.7 | -1.7 | -5.5 | -7.8 | -7.7 | -7.3 | -2.9 | -5 | -5.7 | -9.5 | -13.5 | -6.3 | -9.1 | -9 | -4.7 | -11.2 | -13.1 | -13.6 | -3 | -12.5 |
| Minimum temperature | 6.7 | -0.2 | -1.8 | 2.2 | 0.6 | -0.4 | -2.1 | -6.4 | -4.5 | -3.2 | -7.5 | -4.4 | 2.1 | -0.5 | -2.1 | -1.6 | -2.2 | 0.7 | -0.5 | -1.1 | -4.8 | -8.7 | -1.3 | -4.8 | -5 | -1.2 | -6.7 | -8.2 | -9.5 | 0.7 | -7.7 |
| Apparent min temperature | 6.3 | 0.1 | -1.7 | 1.6 | -1.3 | -3.2 | -2.6 | -6.9 | -5.9 | -6 | -9.2 | -4.5 | 4 | -3.4 | -5.9 | -6.1 | -2.7 | 0.4 | -1.7 | -4 | -6.1 | -9.1 | -4.7 | -5.5 | -6 | 0.1 | -6.9 | -6.2 | -4.2 | -0.6 | -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 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.2 | 9.2 | 9.2 | 9.2 | 9.3 | 9.3 | 9.3 | 9.3 | 9.4 | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.9 | 9.9 |
| Sunshine duration (h) | 5.5 | 5.5 | 0 | 0.9 | 0 | 0 | 7.9 | 8 | 6.4 | 7.9 | 8.1 | 0 | 0 | 0 | 2.9 | 0 | 8.2 | 4 | 4.2 | 0 | 3.1 | 5.4 | 0 | 8 | 0.7 | 7.5 | 8.2 | 7.7 | 1 | 5.1 | 8.4 |
| Precipitation (mm) | 6 | 0.1 | 6.5 | 5.1 | 7.2 | 4.9 | 0.9 | 0 | 0 | 0 | 0 | 3.6 | 22.9 | 0.8 | 0.7 | 7.4 | 0 | 0.4 | 0.1 | 20.4 | 0.7 | 0 | 30.2 | 0.8 | 1.1 | 35.8 | 0 | 0 | 0.1 | 0.1 | 3 |
| Precipitation hours | 10 | 1 | 9 | 10 | 12 | 10 | 3 | 0 | 0 | 0 | 0 | 8 | 20 | 7 | 3 | 23 | 0 | 4 | 1 | 24 | 4 | 0 | 23 | 2 | 6 | 13 | 0 | 0 | 1 | 1 | 11 |
| Wind speed (m/s) | 24.6 | 17 | 11.1 | 12.4 | 18.3 | 12.2 | 14.3 | 14.3 | 11.7 | 16.3 | 11.4 | 11.7 | 18 | 17.7 | 23.7 | 23 | 16.1 | 18.4 | 23.2 | 17.7 | 11 | 15 | 22.7 | 24.1 | 14.4 | 23.2 | 19.1 | 21.7 | 14 | 16.3 | 17.8 |
In January 2023, the highest daytime temperature in Dover was 11.3°C.
While the minimum temperature at night dropped to -9.5°C.
The average nighttime and daytime temperatures during January in Dover are -2.7°C and 4.5°C respectively.
The precipitation sum in January is about 159 mm.