January Weather in Newmarket, Canada

Last updated: June 18, 2025

In Newmarket, Canada, the average temperature in January hovers around -6°C (22°F), with extreme lows reaching -29°C (-21°F) and highs of up to 12°C (53°F). Expect 60 mm (2.4 in) of precipitation over approximately 8 days, accompanied by a notable average humidity of 91%. Stay warm and prepared for the chilly, damp conditions!

January Temperature in Newmarket

In January in Newmarket, the average temperature is -6°C (22°F), with maximums reaching 12°C (53°F) and minimums dropping to as low as -29°C (-21°F). Travelers should prepare for frigid conditions and be ready for significant temperature swings.

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

The chart illustrates January temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newmarket, January typically has an average temperature of -6°C (22°F), with highs reaching up to 12°C (53°F) and lows dropping to around -29°C (-21°F).

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

January Precipitation in Newmarket

In Newmarket in January, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

January Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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 Newmarket, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 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 Newmarket

In Newmarket in January humidity is 91%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and travel challenging as the air feels dense and heavy, potentially making it more difficult to breathe and leaving a frosty mist on your skin.

January Average Humidity in Newmarket

This chart illustrates the average monthly humidity levels in Newmarket, 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 Newmarket is approximately 91%, 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 Newmarket

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

Maximum UV Index Levels in Newmarket for January

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

Data source: Newmarket 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 Newmarket Compares to Other Months

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

This table compares monthly weather conditions in Newmarket, 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 (22°F)	60 mm (2.4 inches)	91%	low
February Weather	-5°C (23°F)	61 mm (2.4 inches)	91%	moderate
March Weather	0°C (32°F)	60 mm (2.4 inches)	88%	moderate
April Weather	6°C (42°F)	103 mm (4.1 inches)	88%	very high
May Weather	13°C (56°F)	99 mm (3.9 inches)	82%	very high
June Weather	19°C (66°F)	94 mm (3.7 inches)	79%	very high
July Weather	22°C (72°F)	98 mm (3.9 inches)	77%	very high
August Weather	21°C (69°F)	97 mm (3.8 inches)	72%	very high
September Weather	16°C (62°F)	64 mm (2.5 inches)	76%	high
October Weather	10°C (50°F)	100 mm (3.9 inches)	83%	moderate
November Weather	2°C (36°F)	74 mm (2.9 inches)	88%	moderate
December Weather	-2°C (28°F)	67 mm (2.6 inches)	87%	low