Average temperature in January is 3.6 °C
Average daytime temperature is 8.2 °C
Average night temperature is 0.3 °C
Absolute maximum temperature: 19.4 °C
Absolute minimum temperature: -11.7 °C
Number of sunny days: 17
Number of rainy days: 13
Number of snow days: 1
Precipitation sum: 71 mm
* Weather data for Waterloo 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 | 13.4 | 15.2 | 19.4 | 15.6 | 4.5 | 7.5 | 7.2 | 4.7 | 10.6 | 13 | 16.7 | 12.8 | 2.2 | 4 | 9.5 | 14.2 | 12.8 | 6.5 | 6.3 | 4.9 | 5.2 | 4.9 | 6.9 | 6.7 | 4 | 1.3 | 10.9 | 11.6 | 8.8 | -3.6 | -3.6 |
| Apparent max temperature | 12 | 14.7 | 18.6 | 12.8 | -0.3 | 4.7 | 3 | 1 | 6.7 | 10.8 | 15.9 | 11.4 | -3.3 | 0 | 4 | 11.4 | 10.3 | 3.5 | 3.5 | 0.5 | 1.9 | 0.9 | 3.1 | 3.5 | 1.1 | -3 | 5.3 | 6.7 | 4.8 | -8.3 | -9.2 |
| Mean temperature | 9.1 | 11.2 | 16.4 | 6.7 | 2.9 | 2.4 | 3.7 | 1.9 | 1.4 | 6.7 | 10.3 | 7.5 | -0.4 | -2.2 | 1.9 | 9.4 | 9 | 4.6 | 4.9 | 2 | -0.5 | 1.7 | 2.3 | 1.8 | 1.8 | -1.6 | 0.8 | 5.3 | 3.2 | -5.1 | -7.8 |
| Apparent mean temperature | 1.6 | 7.2 | 13.8 | -2.3 | -3.7 | -6.6 | -4.5 | -3.2 | -6.7 | -0.4 | 3.7 | -2.6 | -8.6 | -9.7 | -6.7 | 1.3 | 1.6 | -0.3 | -2.4 | -5.7 | -8.5 | -3.9 | -5.3 | -5.6 | -4.3 | -10.4 | -10.1 | -2.5 | -7 | -12.3 | -16.9 |
| Minimum temperature | 5.1 | 8.6 | 14.4 | 1.8 | 0.8 | -2.5 | 0 | 0.5 | -3 | 3.2 | 6.3 | 3.3 | -2.6 | -6.2 | -1.8 | 7 | 4.8 | 3.2 | 3.7 | -0.8 | -4.6 | -0.3 | -0.9 | -1.9 | 0.3 | -4.9 | -5.1 | 0.8 | -1.9 | -6.6 | -11.7 |
| Apparent min temperature | 7 | 10.4 | 15.3 | 2.2 | -2 | -1.5 | -0.2 | -1.8 | -2.3 | 3.3 | 8.3 | 4 | -6.2 | -6.1 | -3.2 | 5 | 6.1 | 1.4 | 0.6 | -2.7 | -4 | -1.8 | -1.5 | -1.7 | -2.5 | -6.7 | -4.4 | 1.2 | -1.1 | -10.5 | -13.2 |
| 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) | 9.5 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 9.9 | 10 | 10 | 10 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 |
| Sunshine duration (h) | 0.4 | 0 | 6.1 | 8 | 7.8 | 8 | 4.8 | 4.6 | 8.1 | 8.1 | 6.5 | 0 | 7.5 | 8.7 | 8 | 1.4 | 8.8 | 0 | 4.2 | 6.8 | 8.9 | 4.7 | 7.7 | 3.4 | 0.2 | 8.9 | 7.8 | 7.9 | 0.2 | 0.2 | 5.8 |
| Precipitation (mm) | 0 | 0.3 | 10.8 | 0 | 0 | 0 | 0 | 2.4 | 0 | 0 | 0 | 15.3 | 0 | 0 | 0 | 1.4 | 0.7 | 14.6 | 2.1 | 0 | 0 | 0.5 | 0.5 | 0 | 19.1 | 0.5 | 0 | 0 | 0.4 | 2.5 | 0 |
| Precipitation hours | 0 | 3 | 12 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 6 | 3 | 11 | 2 | 0 | 0 | 4 | 3 | 0 | 22 | 4 | 0 | 0 | 3 | 8 | 0 |
| Wind speed (m/s) | 16.4 | 14.7 | 25.5 | 23.1 | 23.7 | 12.9 | 13.5 | 13.8 | 14.1 | 17.6 | 13.4 | 29.5 | 23.5 | 15.9 | 22.8 | 27.2 | 20.1 | 21.7 | 31 | 19.1 | 9.4 | 13.4 | 13.3 | 9.9 | 22.2 | 18.9 | 24.4 | 23.4 | 21.1 | 18.2 | 14.4 |
In January 2023, the highest daytime temperature in Waterloo was 19.4°C.
While the minimum temperature at night dropped to -11.7°C.
The average nighttime and daytime temperatures during January in Waterloo are 0.3°C and 8.2°C respectively.
The precipitation sum in January is about 71 mm.