January Weather in Mattawa

Last updated: March 2, 2024

The weather in Mattawa, United States, during January is characterized by an average temperature of -1°C (31°F). Highs can soar to 10°C (51°F), while lows may dip to -11°C (13°F). Typically, the humidity level in Mattawa throughout January hovers around 86%.

-11°C (13°F)

Minimum temperature

-1°C (31°F)

Average temperature

10°C (51°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Mattawa averages 45 mm (1.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 9 hours 1 minutes of daylight, with the sun shining for approximately 2 hours 53 minutes each day. Additionally, there is a 28% probability of sunny days during this period.

45 mm (1.8 inches)

Precipitation

10 rainy days

Rainy days

2 hours 53 minutes

Sunshine hours

28%

Chance of sun

UV Index

In January, the UV Index in Mattawa 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

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