January Weather in Plains, United States

Last updated: June 24, 2025

In January, the average temperature in Plains, United States hovers around 1°C (34°F), with a comfortable maximum reaching 22°C (71°F) and a chillier minimum dipping to -18°C (1°F). Expect about 19 mm (0.8 in) of precipitation spread over three days, while the atmosphere maintains an average humidity level of 74%.

January Temperature in Plains

In January in Plains, the average temperature is 1°C (34°F). The maximum can reach 22°C (71°F), and the minimum can be as low as -18°C (-1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for their trip.

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 1°C (34°F), with highs reaching up to 22°C (71°F) and lows dropping to around -18°C (-1°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 averaged 19 mm (0.8 in) over a span of 3 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 19 mm (0.8 inches) of precipitation spread over approximately 3 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 74%. With average temperature 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making it uncomfortable for traveling as you navigate through the damp air, leaving you feeling colder than the actual temperature suggests.

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 74%, 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 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Plains for better planning.

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 4, 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	1°C (34°F)	19 mm (0.8 inches)	74%	moderate
February Weather	2°C (35°F)	13 mm (0.5 inches)	77%	high
March Weather	9°C (48°F)	63 mm (2.5 inches)	65%	high
April Weather	13°C (55°F)	43 mm (1.7 inches)	67%	very high
May Weather	18°C (65°F)	111 mm (4.4 inches)	81%	extreme
June Weather	25°C (77°F)	53 mm (2.1 inches)	82%	extreme
July Weather	27°C (80°F)	43 mm (1.7 inches)	82%	extreme
August Weather	25°C (78°F)	53 mm (2.1 inches)	84%	extreme
September Weather	23°C (73°F)	37 mm (1.5 inches)	79%	very high
October Weather	14°C (57°F)	57 mm (2.2 inches)	75%	high
November Weather	8°C (46°F)	10 mm (0.4 inches)	79%	moderate
December Weather	3°C (38°F)	26 mm (1.0 inches)	83%	moderate