January Weather in Joint Base Lewis McChord

Last updated: March 2, 2024

The weather in Joint Base Lewis McChord, United States, during January is characterized by an average temperature of 5°C (41°F). Highs can soar to 13°C (56°F), while lows may dip to -4°C (25°F). Typically, the humidity level in Joint Base Lewis McChord throughout January hovers around 86%.

-4°C (25°F)

Minimum temperature

5°C (41°F)

Average temperature

13°C (56°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Joint Base Lewis McChord averages 183 mm (7.2 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 8 hours 59 minutes of daylight, with the sun shining for approximately 2 hours 35 minutes each day. Additionally, there is a 15% probability of sunny days during this period.

183 mm (7.2 inches)

Precipitation

16 rainy days

Rainy days

2 hours 35 minutes

Sunshine hours

15%

Chance of sun

UV Index

In January, the UV Index in Joint Base Lewis McChord 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.

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 1 2 2 2 1 1 1 0 0 0
Exposure Low
Time to burn 45 min

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