December Weather in Jefferson

Last updated: March 2, 2024

The weather in Jefferson, United States, during December is characterized by an average temperature of -2°C (29°F). Highs can soar to 13°C (56°F), while lows may dip to -17°C (2°F). Typically, the humidity level in Jefferson throughout December hovers around 83%.

-17°C (2°F)

Minimum temperature

-2°C (29°F)

Average temperature

13°C (56°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In December, Jefferson averages 41 mm (1.6 inches) of rainfall, typically over the course of 4 rainy days. The month enjoys an average of 9 hours 5 minutes of daylight, with the sun shining for approximately 6 hours 53 minutes each day. Additionally, there is a 52% probability of sunny days during this period.

41 mm (1.6 inches)

Precipitation

4 rainy days

Rainy days

6 hours 53 minutes

Sunshine hours

52%

Chance of sun

UV Index

In December, the UV Index in Jefferson reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	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	2	2	2	2	2	1	1	0	0	0
Exposure	Low
Time to burn	45 min