Average temperature in January is 1.6 °C
Average daytime temperature is 4.9 °C
Average night temperature is -1 °C
Absolute maximum temperature: 14.8 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 2
Number of rainy days: 22
Number of snow days: 7
Precipitation sum: 216 mm
* Weather data for Nagaoka Japan 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 | 6 | 2.3 | 3 | 3 | 3.1 | 3.6 | 4.8 | 3.1 | 7.9 | 3.2 | 8.5 | 12.2 | 14.8 | 10.7 | 6.6 | 3.7 | 4.9 | 4.6 | 8.6 | 9.7 | 2.9 | 3.9 | 9.2 | 4.9 | -0.5 | 1.5 | 1.6 | -0.8 | 0.5 | 3 | 2 |
| Apparent max temperature | 3 | -1.5 | -0.1 | -1.4 | -0.9 | 0.5 | 1.9 | 0.6 | 4.7 | -1.4 | 4.8 | 9.6 | 13 | 9.4 | 4 | 1.2 | 1.7 | 2.2 | 5.3 | 6.1 | -2.2 | 0.3 | 4.8 | 0.9 | -4.5 | -2 | -2.3 | -5 | -2.7 | -1 | -1.6 |
| Mean temperature | 3 | 0.5 | 1.3 | 1.2 | 1.3 | 0.4 | 2.1 | 1.9 | 3.8 | 1.6 | 3.1 | 4.7 | 7.7 | 7.9 | 4.5 | 2 | 1.4 | 1.3 | 4 | 4.2 | -0.1 | 0.5 | 3.7 | -3.5 | -2.9 | -0.4 | -0.7 | -1.9 | -1.1 | 0.2 | -0.8 |
| Apparent mean temperature | -2.4 | -7.7 | -6.1 | -5.2 | -4.5 | -8.4 | -3.4 | -3.3 | -4.5 | -4.3 | -4.8 | -4.3 | 1.6 | 3.6 | 0.4 | -3.2 | -4.9 | -5.5 | -2 | -5.3 | -6.3 | -4.7 | -2.1 | -12.1 | -12.1 | -6.4 | -7.1 | -7.1 | -6.1 | -7.3 | -7.6 |
| Minimum temperature | 0.8 | -3.3 | -2 | -1.4 | -1.3 | -4.3 | -0.1 | 0 | 0.4 | -0.5 | -0.6 | -0.4 | 4.8 | 5.6 | 3.4 | 0.1 | -1.6 | -2.1 | 1.6 | 0.4 | -2.9 | -1.6 | 1.6 | -6.6 | -4.4 | -2.7 | -2.4 | -2.9 | -2.2 | -3.1 | -3.7 |
| Apparent min temperature | -0.3 | -3.5 | -2.4 | -2.6 | -2.2 | -2.8 | -1 | -1 | 0.2 | -2.8 | -0.8 | 1.3 | 5 | 6.1 | 2 | -1.3 | -2.3 | -1.6 | 0.5 | -1.1 | -4.1 | -3 | 0.3 | -8.8 | -8.5 | -3.6 | -4.6 | -5.8 | -4.5 | -4.2 | -5 |
| 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) | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 9.9 | 10 | 10 | 10 | 10 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 |
| Sunshine duration (h) | 2.6 | 4.4 | 1.5 | 3 | 6.7 | 3.1 | 4.9 | 3 | 2.6 | 6.2 | 6.4 | 8.5 | 6.7 | 0 | 0.1 | 0 | 2.8 | 0.6 | 8.4 | 8 | 5.7 | 0 | 4 | 0 | 6 | 0 | 4.1 | 4.4 | 0.7 | 4.6 | 9.2 |
| Precipitation (mm) | 16 | 2.5 | 3.6 | 3.9 | 4.6 | 1.3 | 17.6 | 7.7 | 14.6 | 0.8 | 0 | 0 | 1.2 | 13.2 | 6 | 4.4 | 3.1 | 10 | 1.4 | 2.8 | 2.4 | 3.4 | 10.7 | 16.2 | 6.6 | 21.6 | 6.1 | 16.5 | 10.5 | 7.1 | 0.3 |
| Precipitation hours | 20 | 14 | 16 | 18 | 15 | 10 | 15 | 14 | 19 | 8 | 0 | 0 | 6 | 20 | 17 | 17 | 6 | 16 | 4 | 12 | 9 | 6 | 14 | 21 | 22 | 23 | 18 | 22 | 21 | 19 | 2 |
| Wind speed (m/s) | 23 | 19.9 | 12.1 | 18.7 | 16.9 | 8.6 | 9.8 | 10.1 | 20.3 | 27.5 | 15.3 | 13.3 | 12 | 14.1 | 11 | 12.8 | 13 | 10.1 | 12.2 | 31.7 | 18.1 | 13.6 | 16.8 | 29.4 | 33.7 | 17.6 | 16 | 20.2 | 10.5 | 23.7 | 14.4 |
In January 2023, the highest daytime temperature in Nagaoka was 14.8°C.
While the minimum temperature at night dropped to -6.6°C.
The average nighttime and daytime temperatures during January in Nagaoka are -1°C and 4.9°C respectively.
The precipitation sum in January is about 216 mm.