January Weather in Oskaloosa, United States

Last updated: June 24, 2025

In Oskaloosa, United States, the average temperature in January is a chilly -5°C (24°F), with extremes ranging from a bone-numbing -30°C (-23°F) to a milder 14°C (58°F). Expect about 46 mm (1.8 in) of precipitation over 6 days, accompanied by an average humidity of 78%. Bundle up and prepare for a brisk, damp month!

January Temperature in Oskaloosa

In January in Oskaloosa, average temperature is -5°C (24°F). Maximum can reach 14°C (58°F) and minimum can be as low as -30°C (-23°F). Be prepared for a wide range of temperatures, and pack accordingly to ensure a comfortable trip.

January Weather in Oskaloosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Oskaloosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oskaloosa, January typically has an average temperature of -5°C (24°F), with highs reaching up to 14°C (58°F) and lows dropping to around -30°C (-23°F).

Data source: Temperature data for Oskaloosa generated using information from the Copernicus Climate Change Service.

January Precipitation in Oskaloosa

In Oskaloosa in January, the precipitation amount is 46 mm (1.8 in) over a span of 6 days.

January Precipitation Trends in Oskaloosa

The chart displays monthly precipitation patterns in Oskaloosa, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Oskaloosa, January typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Oskaloosa

In Oskaloosa in January, humidity is 78%. With an average temperature of -5°C (24°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and requiring extra layers to stay warm and dry.

January Average Humidity in Oskaloosa

This chart illustrates the average monthly humidity levels in Oskaloosa, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Oskaloosa is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Oskaloosa

In Oskaloosa in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Oskaloosa, you can check the information here.

Maximum UV Index Levels in Oskaloosa for January

The chart shows the monthly maximum UV Index (UVI) for Oskaloosa in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Oskaloosa typically reaches 3, which falls under the moderate exposure category.

Data source: Oskaloosa January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Oskaloosa Compares to Other Months

Weather in Oskaloosa varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Oskaloosa, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Oskaloosa, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	46 mm (1.8 inches)	78%	moderate
February Weather	-4°C (25°F)	49 mm (1.9 inches)	80%	moderate
March Weather	5°C (41°F)	87 mm (3.4 inches)	77%	high
April Weather	10°C (50°F)	72 mm (2.8 inches)	77%	very high
May Weather	17°C (63°F)	154 mm (6.1 inches)	77%	very high
June Weather	24°C (75°F)	130 mm (5.1 inches)	81%	extreme
July Weather	25°C (78°F)	76 mm (3.0 inches)	81%	extreme
August Weather	23°C (75°F)	69 mm (2.7 inches)	77%	very high
September Weather	20°C (69°F)	122 mm (4.8 inches)	73%	very high
October Weather	12°C (54°F)	128 mm (5.0 inches)	75%	high
November Weather	4°C (40°F)	51 mm (2.0 inches)	85%	moderate
December Weather	0°C (32°F)	39 mm (1.5 inches)	83%	moderate