January Weather in Williams Lake, Canada

Last updated: June 18, 2025

In January, the average temperature in Williams Lake, Canada hovers around -6°C (21°F). However, brace yourself for a range of extremes: temperatures can plummet to a chilly -39°C (-38°F), while occasionally reaching a moderate 6°C (43°F). Expect a precipitation amount of about 30 mm (1.2 in) over 7 days, accompanied by an average humidity of a staggering 94%.

January Temperature in Williams Lake

In January in Williams Lake, the average temperature is -6°C (21°F). The maximum can reach 6°C (43°F), while the minimum can drop as low as -39°C (-38°F). Visitors should be prepared for extremely cold conditions and dress warmly when traveling to Williams Lake during this time.

January Weather in Williams Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Williams Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williams Lake, January typically has an average temperature of -6°C (21°F), with highs reaching up to 6°C (43°F) and lows dropping to around -39°C (-38°F).

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

January Precipitation in Williams Lake

In Williams Lake in January, the total precipitation amount is 30 mm (1.2 in) over a span of 7 days.

January Precipitation Trends in Williams Lake

The chart displays monthly precipitation patterns in Williams Lake, 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 Williams Lake, January typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 7 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 Williams Lake

In Williams Lake in January humidity is 94%. With an average temperature of -6°C (21°F), this humidity feels like an icy blanket enveloping you, making every breath crisp and biting, challenging for travelers to navigate the cold and damp environment.

January Average Humidity in Williams Lake

This chart illustrates the average monthly humidity levels in Williams Lake, 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 Williams Lake is approximately 94%, 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 Williams Lake

In Williams Lake 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 Williams Lake, you can visit Hourly UV Index in Williams Lake.

Maximum UV Index Levels in Williams Lake for January

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

Data source: Williams Lake 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 Williams Lake Compares to Other Months

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

This table compares monthly weather conditions in Williams Lake, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	30 mm (1.2 inches)	94%	low
February Weather	-8°C (18°F)	42 mm (1.7 inches)	93%	moderate
March Weather	-1°C (31°F)	31 mm (1.2 inches)	90%	moderate
April Weather	4°C (40°F)	35 mm (1.4 inches)	88%	moderate
May Weather	11°C (53°F)	39 mm (1.5 inches)	84%	high
June Weather	15°C (58°F)	46 mm (1.8 inches)	80%	very high
July Weather	17°C (63°F)	60 mm (2.4 inches)	86%	very high
August Weather	17°C (62°F)	36 mm (1.4 inches)	83%	very high
September Weather	11°C (53°F)	68 mm (2.7 inches)	83%	high
October Weather	4°C (39°F)	73 mm (2.9 inches)	90%	moderate
November Weather	0°C (31°F)	52 mm (2.1 inches)	96%	low
December Weather	-6°C (21°F)	41 mm (1.6 inches)	97%	low