January Weather in Vernonia, United States

Last updated: June 24, 2025

In January, the average temperature in Vernonia, United States hovers around 4°C (40°F). You can expect a chilly minimum of -10°C (14°F) and a maximum reaching 13°C (56°F). During this time, precipitation amounts to 194 mm (7.6 in) over approximately 17 days, accompanied by a high average humidity of 85%. Be prepared for a damp and cool atmosphere!

January Temperature in Vernonia

In January in Vernonia, the average temperature is 4°C (40°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -10°C (14°F). Travelers should be prepared for chilly conditions and pack accordingly to enjoy their visit.

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

The chart illustrates January temperature patterns in Vernonia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vernonia, January typically has an average temperature of 4°C (40°F), with highs reaching up to 13°C (56°F) and lows dropping to around -10°C (14°F).

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

January Precipitation in Vernonia

In Vernonia in January, the total precipitation amount is 194 mm (7.6 in), measured over a span of 17 days.

January Precipitation Trends in Vernonia

The chart displays monthly precipitation patterns in Vernonia, 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 Vernonia, January typically receives around 194 mm (7.6 inches) of precipitation spread over approximately 17 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 Vernonia

In Vernonia in January, humidity is 85%. With an average temperature of 4°C (40°F), this humidity feels like an icy blanket wrapping around you, making outdoor activities feel much colder and damp, which can be quite uncomfortable for traveling.

January Average Humidity in Vernonia

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

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

Maximum UV Index Levels in Vernonia for January

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

Data source: Vernonia 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 Vernonia Compares to Other Months

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

This table compares monthly weather conditions in Vernonia, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	194 mm (7.6 inches)	85%	low
February Weather	4°C (39°F)	180 mm (7.1 inches)	84%	moderate
March Weather	6°C (43°F)	152 mm (6.0 inches)	85%	moderate
April Weather	9°C (48°F)	132 mm (5.2 inches)	83%	high
May Weather	12°C (54°F)	72 mm (2.9 inches)	83%	very high
June Weather	15°C (59°F)	62 mm (2.5 inches)	83%	very high
July Weather	17°C (63°F)	10 mm (0.4 inches)	82%	very high
August Weather	18°C (65°F)	10 mm (0.4 inches)	74%	very high
September Weather	16°C (60°F)	79 mm (3.1 inches)	71%	high
October Weather	10°C (50°F)	119 mm (4.7 inches)	81%	moderate
November Weather	7°C (44°F)	176 mm (6.9 inches)	87%	moderate
December Weather	4°C (39°F)	206 mm (8.1 inches)	87%	low