January Weather in Cedar Rapids, United States

Last updated: June 24, 2025

In January, the average temperature in Cedar Rapids, United States hovers around -6°C (21°F), with minimums plunging to -33°C (-27°F) and maximums reaching a brisk 12°C (54°F). During this chilly month, expect around 47 mm (1.9 in) of precipitation over 7 days, coupled with an average humidity of 81%, creating a crisp and often damp atmosphere.

January Temperature in Cedar Rapids

In January in Cedar Rapids, the average temperature is -6°C (21°F). Maximums can reach 12°C (54°F), and minimums can drop as low as -33°C (-27°F). Be prepared for a wide range of temperatures, and pack accordingly for your visit!

January Weather in Cedar Rapids: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Cedar Rapids, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cedar Rapids, January typically has an average temperature of -6°C (21°F), with highs reaching up to 12°C (54°F) and lows dropping to around -33°C (-27°F).

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

January Precipitation in Cedar Rapids

In Cedar Rapids in January, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.

January Precipitation Trends in Cedar Rapids

The chart displays monthly precipitation patterns in Cedar Rapids, 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 Cedar Rapids, January typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 7 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 Cedar Rapids

In Cedar Rapids in January humidity is 81%. With an average temperature of -6°C (21°F), this humidity feels like an icy mist wrapping around you, making travel outdoors quite uncomfortable and requiring extra layers to stay warm while navigating the damp chill.

January Average Humidity in Cedar Rapids

This chart illustrates the average monthly humidity levels in Cedar Rapids, 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 Cedar Rapids is approximately 81%, 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 Cedar Rapids

In Cedar Rapids 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 Cedar Rapids, you can check the information here.

Maximum UV Index Levels in Cedar Rapids for January

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

Data source: Cedar Rapids 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 Cedar Rapids Compares to Other Months

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

This table compares monthly weather conditions in Cedar Rapids, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	47 mm (1.9 inches)	81%	moderate
February Weather	-5°C (23°F)	56 mm (2.2 inches)	81%	moderate
March Weather	3°C (38°F)	73 mm (2.9 inches)	81%	high
April Weather	9°C (48°F)	81 mm (3.2 inches)	82%	very high
May Weather	16°C (62°F)	160 mm (6.3 inches)	78%	very high
June Weather	23°C (73°F)	134 mm (5.3 inches)	81%	extreme
July Weather	24°C (76°F)	85 mm (3.3 inches)	79%	very high
August Weather	22°C (73°F)	77 mm (3.0 inches)	77%	very high
September Weather	19°C (67°F)	127 mm (5.0 inches)	78%	very high
October Weather	11°C (53°F)	140 mm (5.5 inches)	78%	high
November Weather	3°C (38°F)	47 mm (1.9 inches)	87%	moderate
December Weather	-1°C (30°F)	44 mm (1.7 inches)	84%	moderate