January Weather in Rio Dell, United States

Last updated: June 24, 2025

In Rio Dell, United States, the average temperature in January hovers around 7°C (45°F). However, temperatures can swing from a chilly -3°C (27°F) to a mild 20°C (69°F). Expect 214 mm (8.4 in) of precipitation spread over 14 days, contributing to the region's high average humidity of 86%. Stay prepared for a variety of weather conditions!

January Temperature in Rio Dell

In January in Rio Dell, the average temperature is 7°C (45°F). Maximum temperatures can reach 20°C (69°F), while minimums can drop as low as -3°C (27°F). Be prepared for a mix of mild days and chilly nights when traveling during this time.

January Weather in Rio Dell: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rio Dell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Dell, January typically has an average temperature of 7°C (45°F), with highs reaching up to 20°C (69°F) and lows dropping to around -3°C (27°F).

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

January Precipitation in Rio Dell

In Rio Dell in January, the precipitation amount is 214 mm (8.4 in) over a period of 14 days.

January Precipitation Trends in Rio Dell

The chart displays monthly precipitation patterns in Rio Dell, 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 Rio Dell, January typically receives around 214 mm (8.4 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Rio Dell

In Rio Dell in January, humidity is 86%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and necessitating cozy layers to stay warm while navigating the moist air.

January Average Humidity in Rio Dell

This chart illustrates the average monthly humidity levels in Rio Dell, 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 Rio Dell 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 Rio Dell

In Rio Dell in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Rio Dell, you can check the information here.

Maximum UV Index Levels in Rio Dell for January

The chart shows the monthly maximum UV Index (UVI) for Rio Dell 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 Rio Dell typically reaches 3, which falls under the moderate exposure category.

Data source: Rio Dell 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 Rio Dell Compares to Other Months

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

This table compares monthly weather conditions in Rio Dell, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	214 mm (8.4 inches)	86%	moderate
February Weather	7°C (44°F)	201 mm (7.9 inches)	85%	moderate
March Weather	8°C (46°F)	177 mm (7.0 inches)	85%	high
April Weather	10°C (49°F)	101 mm (4.0 inches)	82%	very high
May Weather	12°C (53°F)	65 mm (2.6 inches)	81%	very high
June Weather	15°C (59°F)	16 mm (0.6 inches)	79%	extreme
July Weather	17°C (62°F)	2 mm (0.1 inches)	70%	very high
August Weather	18°C (64°F)	1 mm (0.0 inches)	60%	very high
September Weather	16°C (61°F)	23 mm (0.9 inches)	62%	very high
October Weather	13°C (55°F)	59 mm (2.3 inches)	72%	high
November Weather	9°C (49°F)	128 mm (5.1 inches)	87%	moderate
December Weather	6°C (44°F)	155 mm (6.1 inches)	86%	low