January Weather in Oskaloosa, United States

Last updated: June 24, 2025

In January, the average temperature in Oskaloosa, United States hovers around -1°C (31°F), with minimums potentially plunging to -23°C (-9°F) and maximums reaching up to 17°C (63°F). Expect 45 mm (1.8 in) of precipitation spread across 5 days, accompanied by a notable average humidity of 76%. Stay prepared for the chill and occasional rain!

January Temperature in Oskaloosa

In January in Oskaloosa, the average temperature is -1°C (31°F). The maximum can reach 17°C (63°F) and the minimum can be as low as -23°C (-9°F). Visitors should be prepared for a wide range of temperatures and pack accordingly for their 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 -1°C (31°F), with highs reaching up to 17°C (63°F) and lows dropping to around -23°C (-9°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 total precipitation amount is 45 mm (1.8 in) over a span of 5 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 45 mm (1.8 inches) of precipitation spread over approximately 5 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 76%. With an average temperature of -1°C (31°F), this humidity feels like a frigid chill clinging to your skin, making travel quite uncomfortable as the cold air intensifies the dampness, leaving you feeling even colder than the actual temperature.

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 76%, 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	-1°C (31°F)	45 mm (1.8 inches)	76%	moderate
February Weather	0°C (32°F)	31 mm (1.2 inches)	77%	moderate
March Weather	8°C (46°F)	100 mm (3.9 inches)	70%	high
April Weather	12°C (54°F)	88 mm (3.5 inches)	73%	very high
May Weather	19°C (66°F)	218 mm (8.6 inches)	82%	very high
June Weather	25°C (77°F)	125 mm (4.9 inches)	82%	extreme
July Weather	26°C (80°F)	91 mm (3.6 inches)	81%	extreme
August Weather	25°C (77°F)	136 mm (5.3 inches)	78%	very high
September Weather	22°C (72°F)	85 mm (3.3 inches)	71%	very high
October Weather	13°C (56°F)	115 mm (4.5 inches)	71%	high
November Weather	6°C (44°F)	41 mm (1.6 inches)	81%	moderate
December Weather	3°C (37°F)	33 mm (1.3 inches)	84%	moderate