Average temperature in January is 2.6 °C
Average daytime temperature is 4.3 °C
Average night temperature is 0.5 °C
Absolute maximum temperature: 16.3 °C
Absolute minimum temperature: -3.6 °C
Number of sunny days: 10
Number of rainy days: 15
Number of snow days: 6
Precipitation sum: 71 mm
* Weather data for Ciechanów Poland 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 | 16.3 | 11.3 | 10.8 | 7.3 | 8 | 0.4 | 4.2 | 4 | 6.3 | 5.1 | 5 | 8 | 7.4 | 7.1 | 6.8 | 3.8 | 4.3 | 1.7 | 1.5 | 2.1 | 1.1 | 1.6 | 1.5 | 1.8 | -1.4 | 0.4 | 1.2 | 0.4 | 0.4 | 2.7 | 3.6 |
| Apparent max temperature | 10.9 | 8.1 | 6.7 | 2.5 | 3.2 | -3.2 | 1.5 | -0.2 | 3.5 | 2.4 | 0.1 | 3.6 | 3.7 | 2.8 | 2.4 | 0 | 0.4 | -2.7 | -1.8 | -1.8 | -3.8 | -3.5 | -2.1 | -1.2 | -5.1 | -3.2 | -2.6 | -3.2 | -5.1 | -3.1 | -2.8 |
| Mean temperature | 13.2 | 9.7 | 6.4 | 2.9 | 5.6 | -1.2 | 2.4 | 3 | 4.2 | 3.3 | 3.1 | 5.7 | 6.8 | 5 | 5.5 | 2.1 | 2.1 | 0.5 | 0.8 | 0.5 | 0.4 | 0.7 | 0.3 | 0.2 | -2.2 | -0.6 | -0.1 | -1 | -0.8 | 1 | 1.5 |
| Apparent mean temperature | 6.9 | 4.6 | -1.1 | -5.7 | -5.7 | -6.7 | -4.1 | -3.1 | -2.6 | -4.2 | -2.1 | -0.8 | 1.5 | -1.8 | -1.5 | -4.1 | -6.8 | -4.7 | -3.2 | -6.8 | -7.5 | -4.6 | -4.6 | -5.6 | -7.4 | -5.3 | -5.4 | -7.6 | -8.7 | -7.1 | -5.4 |
| Minimum temperature | 9.5 | 7.3 | 3.8 | -1.9 | 0.2 | -2.8 | -0.6 | 1.6 | 1.2 | -0.6 | 2 | 3.3 | 5.5 | 3.6 | 3.7 | 0.1 | -2.6 | -0.8 | 0.1 | -1.1 | -0.5 | 0.2 | -0.2 | -2.3 | -3.4 | -1.5 | -0.9 | -3.5 | -3.6 | -0.4 | 0.2 |
| Apparent min temperature | 8.8 | 6.6 | 1.5 | -1.7 | 0.3 | -5.6 | -0.7 | -1.5 | 0.7 | 0.5 | -1 | 1.4 | 2.7 | 0.3 | 0.2 | -2.3 | -2 | -3.6 | -2.4 | -3.4 | -5.5 | -4.1 | -3.6 | -3.1 | -6 | -4.1 | -3.8 | -5.1 | -6.2 | -5 | -4.1 |
| 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) | 7.7 | 7.7 | 7.7 | 7.8 | 7.8 | 7.8 | 7.8 | 7.9 | 7.9 | 7.9 | 8 | 8 | 8.1 | 8.1 | 8.1 | 8.2 | 8.2 | 8.3 | 8.3 | 8.4 | 8.4 | 8.5 | 8.5 | 8.6 | 8.6 | 8.7 | 8.7 | 8.8 | 8.8 | 8.9 | 9 |
| Sunshine duration (h) | 5.4 | 2.2 | 4.2 | 1 | 0 | 0.5 | 0.9 | 0 | 0 | 0 | 0 | 6 | 0 | 2.7 | 0 | 5.3 | 2.2 | 0 | 0 | 1.3 | 0 | 0 | 0 | 0 | 0.4 | 0 | 0 | 0 | 0 | 0 | 7 |
| Precipitation (mm) | 0 | 0.9 | 0.3 | 7.3 | 5.5 | 6.8 | 0 | 0 | 3 | 0 | 1.1 | 1.3 | 4.4 | 0 | 6.5 | 0 | 2.9 | 7.1 | 0.1 | 0 | 14.8 | 0.2 | 0.8 | 0 | 0 | 0.5 | 1.1 | 0 | 0.6 | 4.2 | 1.6 |
| Precipitation hours | 0 | 3 | 2 | 10 | 17 | 6 | 0 | 0 | 8 | 0 | 4 | 4 | 12 | 0 | 13 | 0 | 6 | 14 | 1 | 0 | 22 | 1 | 6 | 0 | 0 | 3 | 10 | 0 | 5 | 13 | 6 |
| Wind speed (m/s) | 31.3 | 22.4 | 26.9 | 29.7 | 30.8 | 20.4 | 13.8 | 24.3 | 16.5 | 13.1 | 21.5 | 25.2 | 21.7 | 26.4 | 29.4 | 20.6 | 20.5 | 21.1 | 11.9 | 23 | 34.2 | 18.9 | 14.6 | 8.2 | 10 | 9.3 | 15.6 | 14.3 | 23.6 | 29.2 | 31.9 |
In January 2023, the highest daytime temperature in Ciechanów was 16.3°C.
While the minimum temperature at night dropped to -3.6°C.
The average nighttime and daytime temperatures during January in Ciechanów are 0.5°C and 4.3°C respectively.
The precipitation sum in January is about 71 mm.