January Weather in Ahtanum, United States

Last updated: June 24, 2025

In January, the average temperature in Ahtanum, United States hovers around 0°C (33°F). Be prepared for a chilly experience, as temperatures can dip as low as -22°C (-7°F) and peak at a mild 13°C (56°F). Expect about 63 mm (2.5 in) of precipitation spread over 12 days, contributing to an average humidity of 86%.

January Temperature in Ahtanum

In January in Ahtanum, the average temperature is 0°C (33°F). The maximum can reach 13°C (56°F) and the minimum can be as low as -22°C (-7°F). It's advisable to pack warm clothing and be prepared for a range of temperatures while exploring this destination.

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

The chart illustrates January temperature patterns in Ahtanum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ahtanum, January typically has an average temperature of 0°C (33°F), with highs reaching up to 13°C (56°F) and lows dropping to around -22°C (-7°F).

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

January Precipitation in Ahtanum

In Ahtanum in January, the total precipitation amount reaches 63 mm (2.5 in) over the course of 12 days.

January Precipitation Trends in Ahtanum

The chart displays monthly precipitation patterns in Ahtanum, 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 Ahtanum, January typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 12 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 Ahtanum

In Ahtanum in January humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

January Average Humidity in Ahtanum

This chart illustrates the average monthly humidity levels in Ahtanum, 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 Ahtanum is approximately 86%, 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 Ahtanum

In Ahtanum 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 Ahtanum, you can visit Hourly UV Index in Ahtanum.

Maximum UV Index Levels in Ahtanum for January

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

Data source: Ahtanum 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 Ahtanum Compares to Other Months

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

This table compares monthly weather conditions in Ahtanum, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	63 mm (2.5 inches)	86%	low
February Weather	1°C (34°F)	63 mm (2.5 inches)	86%	moderate
March Weather	6°C (42°F)	30 mm (1.2 inches)	87%	moderate
April Weather	10°C (51°F)	23 mm (0.9 inches)	84%	high
May Weather	16°C (62°F)	13 mm (0.5 inches)	81%	very high
June Weather	21°C (70°F)	6 mm (0.2 inches)	82%	very high
July Weather	25°C (77°F)	1 mm (0.0 inches)	79%	very high
August Weather	24°C (76°F)	4 mm (0.2 inches)	63%	very high
September Weather	18°C (65°F)	12 mm (0.5 inches)	62%	high
October Weather	10°C (51°F)	37 mm (1.4 inches)	83%	moderate
November Weather	4°C (40°F)	42 mm (1.7 inches)	89%	moderate
December Weather	1°C (34°F)	59 mm (2.3 inches)	88%	low