Average temperature in December is 4.8 °C
Average daytime temperature is 8.6 °C
Average night temperature is 2.2 °C
Absolute maximum temperature: 17.1 °C
Absolute minimum temperature: -4.2 °C
Number of sunny days: 10
Number of rainy days: 20
Number of snow days: 1
Precipitation sum: 67 mm
* Weather data for Bellevue United States is based on climate observations for 2023 year
| December (°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 | 10.5 | 9.2 | 8.8 | 5.8 | 4.1 | 4.9 | 8.7 | 13.1 | 17.1 | 12.5 | 2.9 | 7.2 | 3.7 | 6.7 | 11.4 | 11.7 | 9.7 | 6.8 | 1 | 5.4 | 6.3 | 9.3 | 9.3 | 13.1 | 15.5 | 14.5 | 12.3 | 8.9 | 6 | 4.4 | 4.9 |
| Apparent max temperature | 5.1 | 7.4 | 5.5 | 1.2 | 1.6 | 0.2 | 4.6 | 7.6 | 13.4 | 10.8 | -2.2 | 0.9 | -0.8 | 1.2 | 7.9 | 7.6 | 6 | 4.2 | -4.4 | 0.6 | 3.2 | 6.4 | 6.9 | 10.9 | 12.9 | 13.2 | 12.3 | 6.2 | 3.1 | 0.4 | 0.8 |
| Mean temperature | 7.7 | 7.5 | 6.2 | 4 | 2.9 | 1.2 | 3.6 | 7.9 | 13.1 | 5 | 0.8 | 1 | -0.7 | 0.1 | 4 | 5.3 | 8.3 | 3.5 | -1.4 | -0.5 | 3 | 5 | 6.8 | 9.1 | 10.4 | 12.2 | 9.1 | 6.9 | 3.4 | 3.2 | 1.5 |
| Apparent mean temperature | 2.1 | 2.8 | 0.8 | -2.8 | -1.3 | -6.6 | -5.2 | 0.4 | 5.3 | -4.2 | -6.4 | -8.4 | -8.5 | -8.3 | -4.7 | -3.1 | 1.4 | -7.2 | -9.4 | -8.4 | -4.7 | -0.1 | 0.6 | 5.9 | 4.2 | 6.2 | 4.1 | 2.9 | -3.8 | -1.7 | -6.4 |
| Minimum temperature | 6.1 | 5.4 | 5.2 | 1.3 | 1.7 | -2.3 | 1 | 5 | 10.5 | 0.5 | -1.6 | -3.3 | -4.1 | -3.6 | 0.1 | 0.7 | 6.4 | 0.2 | -4.2 | -3.4 | -0.3 | 2.9 | 4.6 | 7.6 | 7.6 | 9.9 | 7.4 | 5.4 | 0.2 | 2.6 | -1.7 |
| Apparent min temperature | 3.9 | 5.2 | 3.3 | -0.5 | -0.3 | -2.8 | -1.6 | 3 | 8.6 | 0.5 | -4.3 | -4.8 | -5.2 | -4.7 | -0.5 | 1.4 | 3.7 | -1.8 | -7.3 | -5.6 | -0.5 | 2.2 | 3.1 | 7.4 | 7.8 | 9.5 | 6.9 | 4.6 | -0.7 | -1 | -3 |
| December | 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) | 9.4 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 |
| Sunshine duration (h) | 0 | 0 | 0 | 2.7 | 0.9 | 7.2 | 7.5 | 8.2 | 5.8 | 3.6 | 2.5 | 8.2 | 8.2 | 8.2 | 8.2 | 5 | 1.5 | 3.3 | 5.7 | 8.1 | 0 | 2.5 | 0 | 2.5 | 6.4 | 4.1 | 0 | 0.8 | 2 | 1.8 | 0 |
| Precipitation (mm) | 6.2 | 2.1 | 4.9 | 0.5 | 2.5 | 0.4 | 0 | 0 | 3.9 | 2.8 | 0.3 | 0 | 0 | 0 | 0 | 0 | 9 | 3.8 | 1.2 | 0 | 0 | 0.6 | 6.8 | 0.7 | 0 | 2.5 | 12.4 | 3.2 | 0.7 | 1.4 | 1.5 |
| Precipitation hours | 10 | 11 | 5 | 3 | 12 | 3 | 0 | 0 | 7 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 13 | 10 | 5 | 0 | 0 | 3 | 14 | 4 | 0 | 8 | 16 | 16 | 4 | 12 | 5 |
| Wind speed (m/s) | 25.9 | 18.2 | 26 | 27.7 | 12.8 | 14.7 | 25.7 | 26.3 | 36 | 19.6 | 21 | 28.6 | 14.8 | 17.4 | 17.1 | 17.4 | 24.8 | 31 | 29.3 | 17.3 | 10.7 | 10.4 | 19.7 | 16.1 | 17.9 | 26.9 | 16.2 | 12.2 | 19.2 | 19.7 | 20.2 |
In December 2023, the highest daytime temperature in Bellevue was 17.1°C.
While the minimum temperature at night dropped to -4.2°C.
The average nighttime and daytime temperatures during December in Bellevue are 2.2°C and 8.6°C respectively.
The precipitation sum in December is about 67 mm.