January Weather in Onalaska

Last updated: March 2, 2024

The weather in Onalaska, 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 -5°C (24°F). Typically, the humidity level in Onalaska throughout January hovers around 86%.

-5°C (24°F)

Minimum temperature

5°C (41°F)

Average temperature

13°C (56°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Onalaska averages 188 mm (7.4 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 9 hours 2 minutes of daylight, with the sun shining for approximately 2 hours 31 minutes each day. Additionally, there is a 14% probability of sunny days during this period.

188 mm (7.4 inches)

Precipitation

16 rainy days

Rainy days

2 hours 31 minutes

Sunshine hours

14%

Chance of sun

UV Index

In January, the UV Index in Onalaska 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 2 1 1 0 0 0
Exposure Low
Time to burn 45 min

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