January Weather in Prosser, United States

Last updated: June 24, 2025

In January, the average temperature in Prosser, United States hovers around 1°C (34°F). During this time, temperatures can dip as low as -24°C (-11°F), while soaring to a maximum of 15°C (59°F). Expect about 39 mm (1.5 in) of precipitation spread over 10 days, contributing to an average humidity of 85%. Stay prepared for a chilly and damp month ahead!

January Temperature in Prosser

In January in Prosser, the average temperature is 1°C (34°F). Maximum temperatures can reach 15°C (59°F), while the minimum can drop as low as -24°C (-11°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates January temperature patterns in Prosser, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prosser, January typically has an average temperature of 1°C (34°F), with highs reaching up to 15°C (59°F) and lows dropping to around -24°C (-11°F).

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

January Precipitation in Prosser

In Prosser in January, the precipitation amount is 39 mm (1.5 in) over a span of 10 days.

January Precipitation Trends in Prosser

The chart displays monthly precipitation patterns in Prosser, 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 Prosser, January typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 10 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 Prosser

In Prosser in January, humidity is 85%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and urging you to seek warmth indoors rather than explore the surroundings.

January Average Humidity in Prosser

This chart illustrates the average monthly humidity levels in Prosser, 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 Prosser is approximately 85%, 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 Prosser

In Prosser in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Prosser, you can visit Hourly UV Index in Prosser.

Maximum UV Index Levels in Prosser for January

The chart shows the monthly maximum UV Index (UVI) for Prosser 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 Prosser typically reaches 2, which falls under the low exposure category.

Data source: Prosser 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 Prosser Compares to Other Months

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

This table compares monthly weather conditions in Prosser, 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)	39 mm (1.5 inches)	85%	low
February Weather	2°C (36°F)	39 mm (1.5 inches)	86%	moderate
March Weather	8°C (46°F)	24 mm (0.9 inches)	86%	moderate
April Weather	13°C (55°F)	22 mm (0.9 inches)	82%	high
May Weather	19°C (66°F)	15 mm (0.6 inches)	77%	very high
June Weather	23°C (74°F)	6 mm (0.2 inches)	79%	very high
July Weather	27°C (81°F)	1 mm (0.0 inches)	77%	very high
August Weather	27°C (80°F)	4 mm (0.1 inches)	62%	very high
September Weather	20°C (69°F)	9 mm (0.3 inches)	60%	high
October Weather	12°C (53°F)	24 mm (1.0 inches)	80%	moderate
November Weather	5°C (42°F)	31 mm (1.2 inches)	87%	moderate
December Weather	2°C (35°F)	31 mm (1.2 inches)	86%	low