January Weather in Postville, United States

Last updated: June 24, 2025

In January, the average temperature in Postville, United States hovers around -7°C (20°F), presenting a chilly atmosphere. Be prepared for extremes, as temperatures can plummet to a minimum of -33°C (-27°F) and occasionally reach up to 11°C (51°F). Expect 41 mm (1.6 in) of precipitation over the month, typically spread across 7 days. The air remains quite damp with an average humidity of 84%, making layering essential for comfort during your stay.

January Temperature in Postville

In January in Postville, the average temperature is -7°C (20°F). Maximum temperatures can reach 11°C (51°F), while the minimum can drop as low as -33°C (-27°F). Be prepared for a wide range of temperatures when traveling to Postville during this time.

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

The chart illustrates January temperature patterns in Postville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Postville, January typically has an average temperature of -7°C (20°F), with highs reaching up to 11°C (51°F) and lows dropping to around -33°C (-27°F).

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

January Precipitation in Postville

In Postville in January, the precipitation amount is 41 mm (1.6 in) spread over a duration of 7 days.

January Precipitation Trends in Postville

The chart displays monthly precipitation patterns in Postville, 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 Postville, January typically receives around 41 mm (1.6 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 Postville

In Postville in January, humidity is 84%. With an average temperature of -7°C (20°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

January Average Humidity in Postville

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

In Postville 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 Postville, you can check the information here.

Maximum UV Index Levels in Postville for January

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

Data source: Postville 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 Postville Compares to Other Months

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

This table compares monthly weather conditions in Postville, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	41 mm (1.6 inches)	84%	moderate
February Weather	-6°C (21°F)	53 mm (2.1 inches)	85%	moderate
March Weather	2°C (36°F)	63 mm (2.5 inches)	84%	moderate
April Weather	8°C (46°F)	78 mm (3.1 inches)	83%	very high
May Weather	15°C (60°F)	154 mm (6.1 inches)	75%	very high
June Weather	22°C (71°F)	134 mm (5.3 inches)	79%	very high
July Weather	23°C (75°F)	113 mm (4.5 inches)	75%	very high
August Weather	21°C (71°F)	97 mm (3.8 inches)	69%	very high
September Weather	18°C (65°F)	121 mm (4.7 inches)	74%	very high
October Weather	10°C (50°F)	136 mm (5.4 inches)	79%	moderate
November Weather	2°C (36°F)	50 mm (2.0 inches)	88%	moderate
December Weather	-2°C (29°F)	39 mm (1.5 inches)	82%	low