Average temperature in January is -4.7 °C
Average daytime temperature is -0.9 °C
Average night temperature is -8 °C
Absolute maximum temperature: 11 °C
Absolute minimum temperature: -23.1 °C
Number of sunny days: 17
Number of rainy days: 2
Number of snow days: 12
Precipitation sum: 55 mm
* Weather data for Hyannis 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 | 3.5 | 1.3 | -3.5 | -3.9 | -4.1 | -3.1 | -0.5 | 0.4 | 2.6 | 4.4 | 2.7 | 1.7 | 4.2 | 11 | 8.1 | 4.8 | 1.9 | -0.6 | -3.4 | -3 | -2.2 | -2.6 | -1.3 | -0.7 | -2.9 | -2 | 1.3 | -0.4 | -15.9 | -16.8 | -9.2 |
| Apparent max temperature | -1.1 | -3.1 | -8.4 | -10.4 | -10.8 | -6.4 | -4.6 | -4.9 | -2.4 | 0 | -1.7 | -1.5 | 0.3 | 5.5 | 4.1 | -0.6 | -1.2 | -4.5 | -9.1 | -7 | -7.5 | -7.3 | -4.8 | -5.7 | -7.7 | -7.9 | -3.2 | -4.3 | -21.3 | -23.2 | -15.8 |
| Mean temperature | 0.6 | -1.4 | -4.2 | -7.9 | -7 | -6.8 | -5.5 | -4.4 | 0.2 | -0.1 | -1.9 | -2.7 | -3 | 3.3 | 3.1 | 1.9 | -1.2 | -3.5 | -4.6 | -6.6 | -4.6 | -7.6 | -4.3 | -5.8 | -4.9 | -4 | -0.1 | -6.1 | -18.6 | -19.5 | -18.5 |
| Apparent mean temperature | -6.3 | -8.4 | -11.9 | -17.3 | -15.3 | -15.7 | -15.6 | -13.5 | -8.1 | -8.4 | -11.7 | -9.8 | -12.3 | -5.2 | -4.8 | -4.9 | -7.7 | -13 | -12.1 | -14.3 | -11.1 | -17.7 | -13.7 | -14.1 | -12.7 | -11.4 | -8.5 | -21.3 | -26.4 | -27.9 | -29.1 |
| Minimum temperature | -2.2 | -2.7 | -5.5 | -11.2 | -9.7 | -11.3 | -10.8 | -8.3 | -2.7 | -3.5 | -6.5 | -5.2 | -7.2 | -0.4 | -0.9 | -0.8 | -4 | -6.2 | -6.3 | -9.1 | -6.6 | -13 | -8.3 | -8.8 | -6.8 | -6.1 | -1.3 | -14.5 | -21.5 | -23.1 | -22.6 |
| Apparent min temperature | -3.4 | -6.4 | -10.4 | -13.5 | -13 | -11.6 | -9.8 | -9.6 | -5.5 | -4.8 | -6.2 | -7.1 | -7.6 | -1.8 | -0.6 | -2.6 | -4.6 | -9 | -10.5 | -11.6 | -9.3 | -12.5 | -8.8 | -11 | -10.7 | -9.9 | -6.4 | -12.1 | -23.9 | -24.7 | -25.1 |
| 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) | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.4 | 9.4 | 9.4 | 9.4 | 9.5 | 9.5 | 9.5 | 9.5 | 9.6 | 9.6 | 9.6 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 10 |
| Sunshine duration (h) | 1.7 | 0 | 3.4 | 7.9 | 8.1 | 8 | 6.4 | 8.2 | 8.2 | 7.1 | 2.4 | 8.1 | 8.1 | 8 | 1.6 | 8 | 1.6 | 0 | 8 | 7.3 | 7.8 | 8.1 | 3.5 | 8.6 | 3.8 | 7.2 | 6.6 | 0 | 3.1 | 8 | 9 |
| Precipitation (mm) | 0 | 11.4 | 10.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 4.6 | 0 | 17 | 3.6 | 0 | 0 | 0.1 | 0.2 | 0 | 0.1 | 1.8 | 0.4 | 2.1 | 2.4 | 0.9 | 0 |
| Precipitation hours | 0 | 17 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 11 | 0 | 19 | 9 | 0 | 0 | 1 | 2 | 0 | 1 | 8 | 1 | 15 | 17 | 6 | 0 |
| Wind speed (m/s) | 16.4 | 22.5 | 30.6 | 25.1 | 26 | 18.3 | 18.4 | 18.1 | 30.9 | 17.5 | 16 | 18.4 | 16.2 | 26.4 | 16.1 | 21.9 | 11.2 | 26.4 | 27.6 | 14.8 | 18.4 | 16.6 | 16.3 | 20.6 | 25.4 | 31 | 36.9 | 31 | 23.6 | 18.5 | 22.4 |
In January 2023, the highest daytime temperature in Hyannis was 11°C.
While the minimum temperature at night dropped to -23.1°C.
The average nighttime and daytime temperatures during January in Hyannis are -8°C and -0.9°C respectively.
The precipitation sum in January is about 55 mm.