January Weather in Susanville, United States

Last updated: June 24, 2025

In January, the average temperature in Susanville, United States hovers around -1°C (31°F), with a possible minimum plunging to -19°C (-3°F) and a maximum reaching 11°C (51°F). Expect cloudy days with an average precipitation of 104 mm (4.1 in) spread over 11 days, contributing to a high average humidity of 86%. Stay warm and prepared for the chilly, damp conditions!

January Temperature in Susanville

In January in Susanville, the average temperature is -1°C (31°F), with a maximum that can reach 11°C (51°F) and a minimum that can drop as low as -19°C (-3°F). Travelers should be prepared for chilly conditions and pack appropriately for fluctuating temperatures.

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

The chart illustrates January temperature patterns in Susanville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Susanville, January typically has an average temperature of -1°C (31°F), with highs reaching up to 11°C (51°F) and lows dropping to around -19°C (-3°F).

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

January Precipitation in Susanville

In Susanville in January, the precipitation amount is 104 mm (4.1 in) over the course of 11 days.

January Precipitation Trends in Susanville

The chart displays monthly precipitation patterns in Susanville, 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 Susanville, January typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 11 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 Susanville

In Susanville in January humidity is 86%. With an average temperature of -1°C (31°F), this humidity feels like an eerie chill enveloping you, making travel uncomfortable as the damp air bites into your skin and the cold seeps through even the warmest of clothes, creating an atmosphere that is heavy and uninviting.

January Average Humidity in Susanville

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

In Susanville 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 Susanville for better planning.

Maximum UV Index Levels in Susanville for January

The chart shows the monthly maximum UV Index (UVI) for Susanville 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 Susanville typically reaches 4, which falls under the moderate exposure category.

Data source: Susanville 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 Susanville Compares to Other Months

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

This table compares monthly weather conditions in Susanville, 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 (31°F)	104 mm (4.1 inches)	86%	moderate
February Weather	0°C (32°F)	112 mm (4.4 inches)	87%	moderate
March Weather	2°C (35°F)	92 mm (3.6 inches)	86%	very high
April Weather	6°C (44°F)	48 mm (1.9 inches)	83%	very high
May Weather	12°C (53°F)	53 mm (2.1 inches)	72%	extreme
June Weather	18°C (64°F)	14 mm (0.5 inches)	67%	extreme
July Weather	22°C (72°F)	10 mm (0.4 inches)	56%	extreme
August Weather	21°C (71°F)	10 mm (0.4 inches)	42%	extreme
September Weather	16°C (62°F)	20 mm (0.8 inches)	46%	very high
October Weather	9°C (49°F)	35 mm (1.4 inches)	67%	high
November Weather	4°C (39°F)	49 mm (1.9 inches)	86%	moderate
December Weather	-1°C (30°F)	79 mm (3.1 inches)	86%	moderate