Last updated: March 2, 2024
The weather in Black River, United States, during December is characterized by an average temperature of -3°C (27°F). Highs can soar to 12°C (54°F), while lows may dip to -21°C (-5°F). Typically, the humidity level in Black River throughout December hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Black River averages 110 mm (4.3 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 8 hours 55 minutes of daylight, with the sun shining for approximately 3 hours 48 minutes each day. Additionally, there is a 24% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Black River reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 45 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||