January Weather in Platteville, United States

Last updated: June 24, 2025

In January, the average temperature in Platteville, United States hovers around -6°C (21°F), with extremes that can plunge to a frigid -33°C (-27°F) or peak at a mild 9°C (49°F). This month sees about 48 mm (1.9 in) of precipitation spread over 8 days, contributing to an average humidity of 84%. Prepare for a brisk, damp atmosphere as winter holds its grip!

January Temperature in Platteville

In January in Platteville, the average temperature is -6°C (21°F). Maximums can reach 9°C (49°F), while minimums can drop as low as -33°C (-27°F). Travelers should be prepared for cold weather conditions and dress warmly.

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

The chart illustrates January temperature patterns in Platteville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Platteville, January typically has an average temperature of -6°C (21°F), with highs reaching up to 9°C (49°F) and lows dropping to around -33°C (-27°F).

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

January Precipitation in Platteville

In Platteville in January, the precipitation amount is 48 mm (1.9 in) over a span of 8 days.

January Precipitation Trends in Platteville

The chart displays monthly precipitation patterns in Platteville, 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 Platteville, January typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 8 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 Platteville

In Platteville 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 Platteville

This chart illustrates the average monthly humidity levels in Platteville, 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 Platteville 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 Platteville

In Platteville 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 Platteville, you can check the information here.

Maximum UV Index Levels in Platteville for January

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

Data source: Platteville 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 Platteville Compares to Other Months

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

This table compares monthly weather conditions in Platteville, 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)	48 mm (1.9 inches)	84%	moderate
February Weather	-5°C (23°F)	60 mm (2.4 inches)	85%	moderate
March Weather	3°C (37°F)	63 mm (2.5 inches)	84%	high
April Weather	8°C (47°F)	89 mm (3.5 inches)	83%	very high
May Weather	16°C (60°F)	144 mm (5.7 inches)	75%	very high
June Weather	22°C (71°F)	133 mm (5.3 inches)	79%	very high
July Weather	24°C (75°F)	99 mm (3.9 inches)	75%	very high
August Weather	22°C (71°F)	98 mm (3.9 inches)	69%	very high
September Weather	19°C (66°F)	117 mm (4.6 inches)	74%	very high
October Weather	11°C (51°F)	124 mm (4.9 inches)	79%	moderate
November Weather	2°C (37°F)	45 mm (1.8 inches)	88%	moderate
December Weather	-2°C (30°F)	43 mm (1.7 inches)	82%	low