January Weather in Shasta Lake

Last updated: March 2, 2024

The weather in Shasta Lake, United States, during January is characterized by an average temperature of 7°C (45°F). Highs can soar to 19°C (66°F), while lows may dip to -2°C (29°F). Typically, the humidity level in Shasta Lake throughout January hovers around 86%.

-2°C (29°F)

Minimum temperature

7°C (45°F)

Average temperature

19°C (66°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Shasta Lake averages 257 mm (10.1 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 9 hours 37 minutes of daylight, with the sun shining for approximately 3 hours 40 minutes each day. Additionally, there is a 30% probability of sunny days during this period.

257 mm (10.1 inches)

Precipitation

13 rainy days

Rainy days

3 hours 40 minutes

Sunshine hours

30%

Chance of sun

UV Index

In January, the UV Index in Shasta Lake reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 3 3 3 2 2 1 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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