January Weather in Garnavillo, United States

Last updated: June 24, 2025

In Garnavillo, United States, the average temperature in January hovers around -6°C (21°F). Extreme lows can plummet to -33°C (-27°F), while temperatures may peak at a max of 10°C (51°F). During this period, you can expect an average precipitation of 44 mm (1.7 in) spread over 8 days, contributing to a relatively high average humidity of 84%.

January Temperature in Garnavillo

In January in Garnavillo, the average temperature is -6°C (21°F). The maximum can reach 10°C (51°F), while the minimum can drop as low as -33°C (-27°F). Travelers should be prepared for a wide range of temperatures and dress warmly to enjoy their visit.

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

The chart illustrates January temperature patterns in Garnavillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garnavillo, January typically has an average temperature of -6°C (21°F), with highs reaching up to 10°C (51°F) and lows dropping to around -33°C (-27°F).

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

January Precipitation in Garnavillo

In Garnavillo in January, the total precipitation amount is 44 mm (1.7 in) over a duration of 8 days.

January Precipitation Trends in Garnavillo

The chart displays monthly precipitation patterns in Garnavillo, 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 Garnavillo, January typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 8 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 Garnavillo

In Garnavillo in January humidity is 84%. With an average temperature of -6°C (21°F), this humidity feels like an icy blanket enveloping you, making travel uncomfortable as the cold dampness seeps into your bones and slows your movements, turning each step into a shivering struggle.

January Average Humidity in Garnavillo

This chart illustrates the average monthly humidity levels in Garnavillo, 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 Garnavillo is approximately 84%, 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 Garnavillo

In Garnavillo 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 Garnavillo, you can check the information here.

Maximum UV Index Levels in Garnavillo for January

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

Data source: Garnavillo 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 Garnavillo Compares to Other Months

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

This table compares monthly weather conditions in Garnavillo, 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)	44 mm (1.7 inches)	84%	moderate
February Weather	-6°C (22°F)	56 mm (2.2 inches)	85%	moderate
March Weather	2°C (37°F)	62 mm (2.5 inches)	84%	moderate
April Weather	8°C (47°F)	78 mm (3.1 inches)	83%	very high
May Weather	16°C (60°F)	150 mm (5.9 inches)	75%	very high
June Weather	22°C (72°F)	130 mm (5.1 inches)	79%	very high
July Weather	24°C (75°F)	103 mm (4.0 inches)	75%	very high
August Weather	22°C (71°F)	87 mm (3.4 inches)	69%	very high
September Weather	19°C (66°F)	120 mm (4.7 inches)	74%	very high
October Weather	10°C (51°F)	133 mm (5.2 inches)	79%	moderate
November Weather	2°C (36°F)	47 mm (1.9 inches)	88%	moderate
December Weather	-2°C (29°F)	40 mm (1.6 inches)	82%	low