January Weather in Plains, United States

Last updated: June 24, 2025

In January, the average temperature in Plains, United States hovers around 5°C (42°F). Be prepared for a wide temperature range, where it can drop to a chilly -14°C (6°F) or rise to a warm 26°C (79°F). Expect some moisture as well, with 18 mm (0.7 in) of precipitation over about 2 days, accompanied by an average humidity of 75%.

January Temperature in Plains

In January in Plains, the average temperature is 5°C (42°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -14°C (6°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates January temperature patterns in Plains, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plains, January typically has an average temperature of 5°C (42°F), with highs reaching up to 26°C (79°F) and lows dropping to around -14°C (6°F).

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

January Precipitation in Plains

In Plains in January, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.

January Precipitation Trends in Plains

The chart displays monthly precipitation patterns in Plains, 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 Plains, January typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 2 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 Plains

In Plains in January, humidity is 75%. With an average temperature of 5°C (42°F), this humidity feels like a chilly dampness that clings to your clothes, making outdoor activities uncomfortable and requiring extra layers to stay warm while traveling.

January Average Humidity in Plains

This chart illustrates the average monthly humidity levels in Plains, 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 Plains is approximately 75%, 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 Plains

In Plains in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Plains.

Maximum UV Index Levels in Plains for January

The chart shows the monthly maximum UV Index (UVI) for Plains 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 Plains typically reaches 5, which falls under the moderate exposure category.

Data source: Plains 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 Plains Compares to Other Months

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

This table compares monthly weather conditions in Plains, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	18 mm (0.7 inches)	75%	moderate
February Weather	7°C (45°F)	11 mm (0.4 inches)	74%	high
March Weather	13°C (55°F)	34 mm (1.3 inches)	61%	very high
April Weather	17°C (62°F)	17 mm (0.7 inches)	61%	extreme
May Weather	22°C (72°F)	41 mm (1.6 inches)	67%	extreme
June Weather	26°C (79°F)	46 mm (1.8 inches)	69%	extreme
July Weather	27°C (81°F)	24 mm (0.9 inches)	69%	extreme
August Weather	27°C (80°F)	39 mm (1.5 inches)	66%	extreme
September Weather	23°C (74°F)	44 mm (1.7 inches)	71%	very high
October Weather	16°C (62°F)	46 mm (1.8 inches)	71%	very high
November Weather	11°C (51°F)	18 mm (0.7 inches)	82%	high
December Weather	7°C (45°F)	11 mm (0.4 inches)	80%	moderate