January Weather in Grimsby, Canada

Last updated: June 18, 2025

In January, the average temperature in Grimsby, Canada hovers around -2°C (29°F), making it a chillier time of year. Temperatures can dip as low as -19°C (-2°F), but may also reach a pleasant 11°C (53°F). Expect around 75 mm (3.0 in) of precipitation spread over 9 days, contributing to an average humidity of 91%, creating a crisp, damp atmosphere.

January Temperature in Grimsby

In January in Grimsby, the average temperature is -2°C (29°F), with maximums reaching 11°C (53°F) and minimums dropping as low as -19°C (-2°F). Travelers should prepare for a range of chilly weather conditions, so layering clothing is advisable.

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

The chart illustrates January temperature patterns in Grimsby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grimsby, January typically has an average temperature of -2°C (29°F), with highs reaching up to 11°C (53°F) and lows dropping to around -19°C (-2°F).

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

January Precipitation in Grimsby

In Grimsby in January, the precipitation amount is 75 mm (3.0 in) distributed over 9 days.

January Precipitation Trends in Grimsby

The chart displays monthly precipitation patterns in Grimsby, 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 Grimsby, January typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 9 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 Grimsby

In Grimsby in January, humidity is 91%. With an average temperature of -2°C (29°F), this humidity feels like a chilling embrace that can quickly sap your energy, making outdoor adventures uncomfortable and dampening the joy of exploration.

January Average Humidity in Grimsby

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

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

Maximum UV Index Levels in Grimsby for January

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

Data source: Grimsby 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 Grimsby Compares to Other Months

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

This table compares monthly weather conditions in Grimsby, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	75 mm (3.0 inches)	91%	low
February Weather	-2°C (29°F)	83 mm (3.3 inches)	91%	moderate
March Weather	1°C (35°F)	69 mm (2.7 inches)	88%	moderate
April Weather	6°C (43°F)	115 mm (4.5 inches)	88%	very high
May Weather	12°C (53°F)	98 mm (3.9 inches)	82%	very high
June Weather	18°C (65°F)	78 mm (3.1 inches)	79%	very high
July Weather	23°C (73°F)	88 mm (3.5 inches)	77%	very high
August Weather	22°C (72°F)	76 mm (3.0 inches)	72%	very high
September Weather	19°C (66°F)	65 mm (2.6 inches)	76%	high
October Weather	13°C (56°F)	115 mm (4.5 inches)	83%	moderate
November Weather	5°C (42°F)	83 mm (3.3 inches)	88%	moderate
December Weather	1°C (35°F)	84 mm (3.3 inches)	87%	low