January Weather in Thornton

Last updated: March 2, 2024

The weather in Thornton, United States, during January is characterized by an average temperature of -8°C (18°F). Highs can soar to 7°C (45°F), while lows may dip to -24°C (-11°F). Typically, the humidity level in Thornton throughout January hovers around 86%.

-24°C (-11°F)

Minimum temperature

-8°C (18°F)

Average temperature

7°C (45°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Thornton averages 85 mm (3.4 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 9 hours 19 minutes of daylight, with the sun shining for approximately 4 hours 4 minutes each day. Additionally, there is a 30% probability of sunny days during this period.

85 mm (3.4 inches)

Precipitation

11 rainy days

Rainy days

4 hours 4 minutes

Sunshine hours

30%

Chance of sun

UV Index

In January, the UV Index in Thornton reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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	3	2	2	1	1	0	0	0
Exposure	Low					Moderate	Low
Time to burn	45 min					30 min	45 min