January Weather in Umatilla

Last updated: March 2, 2024

The weather in Umatilla, United States, during January is characterized by an average temperature of 15°C (59°F). Highs can soar to 28°C (82°F), while lows may dip to 0°C (32°F). Typically, the humidity level in Umatilla throughout January hovers around 83%.

0°C (32°F)

Minimum temperature

15°C (59°F)

Average temperature

28°C (82°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In January, Umatilla averages 47 mm (1.9 inches) of rainfall, typically over the course of 4 rainy days. The month enjoys an average of 10 hours 31 minutes of daylight, with the sun shining for approximately 6 hours 43 minutes each day. Additionally, there is a 44% probability of sunny days during this period.

47 mm (1.9 inches)

Precipitation

4 rainy days

Rainy days

6 hours 43 minutes

Sunshine hours

44%

Chance of sun

UV Index

In January, the UV Index in Umatilla reaches a maximum of 5, 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 3 4 5 5 4 3 2 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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