January Weather in Oshkosh, United States

Last updated: June 24, 2025

In January, the average temperature in Oshkosh, United States hovers around -2°C (30°F). Expect chilly nights with minimum temperatures dropping to -25°C (-13°F), while pleasant days can reach a maximum of 17°C (63°F). During this period, precipitation averages 12 mm (0.5 in) over 2 days, contributing to an overall average humidity of 73%. Stay warm and prepare for some delightful winter scenery!

January Temperature in Oshkosh

In January in Oshkosh, the average temperature is -2°C (30°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -25°C (-13°F). Be prepared for a wide range of temperatures and pack accordingly when traveling to Oshkosh this January.

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

The chart illustrates January temperature patterns in Oshkosh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oshkosh, January typically has an average temperature of -2°C (30°F), with highs reaching up to 17°C (63°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Oshkosh

In Oshkosh in January, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

January Precipitation Trends in Oshkosh

The chart displays monthly precipitation patterns in Oshkosh, 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 Oshkosh, January typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Oshkosh

In Oshkosh in January, humidity is 73%. With an average temperature of -2°C (30°F), this humidity feels like a biting chill that seeps through layers of clothing, making travel uncomfortable and requiring extra preparation to stay warm and dry.

January Average Humidity in Oshkosh

This chart illustrates the average monthly humidity levels in Oshkosh, 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 Oshkosh is approximately 73%, 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 Oshkosh

In Oshkosh 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 Oshkosh, you can check the information here.

Maximum UV Index Levels in Oshkosh for January

The chart shows the monthly maximum UV Index (UVI) for Oshkosh 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 Oshkosh typically reaches 3, which falls under the moderate exposure category.

Data source: Oshkosh 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 Oshkosh Compares to Other Months

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

This table compares monthly weather conditions in Oshkosh, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (30°F)	12 mm (0.5 inches)	73%	moderate
February Weather	-3°C (28°F)	18 mm (0.7 inches)	80%	moderate
March Weather	4°C (40°F)	59 mm (2.3 inches)	64%	high
April Weather	8°C (47°F)	52 mm (2.1 inches)	64%	very high
May Weather	14°C (57°F)	135 mm (5.3 inches)	76%	very high
June Weather	22°C (71°F)	49 mm (1.9 inches)	79%	extreme
July Weather	25°C (76°F)	53 mm (2.1 inches)	77%	extreme
August Weather	23°C (73°F)	47 mm (1.8 inches)	79%	very high
September Weather	19°C (67°F)	32 mm (1.3 inches)	70%	very high
October Weather	9°C (48°F)	33 mm (1.3 inches)	64%	high
November Weather	5°C (41°F)	20 mm (0.8 inches)	75%	moderate
December Weather	0°C (33°F)	17 mm (0.7 inches)	78%	moderate