January Weather in Windsor, United States

Last updated: June 24, 2025

In January, the average temperature in Windsor, United States hovers around 1°C (33°F), with a chilly minimum of -21°C (-5°F) and a warmer maximum of 19°C (67°F). Expect some rain, as 64 mm (2.5 in) of precipitation typically falls over 6 days. Additionally, the air is quite humid, with an average humidity level of 80%.

January Temperature in Windsor

In January in Windsor, the average temperature is 1°C (33°F). Maximum temperatures can reach up to 19°C (67°F), while minimum temperatures can drop as low as -21°C (-5°F). Be prepared for a wide range of temperatures during your travels.

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

The chart illustrates January temperature patterns in Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Windsor, January typically has an average temperature of 1°C (33°F), with highs reaching up to 19°C (67°F) and lows dropping to around -21°C (-5°F).

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

January Precipitation in Windsor

In Windsor in January, the total precipitation amount is 64 mm (2.5 in) during a span of 6 days.

January Precipitation Trends in Windsor

The chart displays monthly precipitation patterns in Windsor, 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 Windsor, January typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 6 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 Windsor

In Windsor in January, humidity is 80%. With an average temperature of 1°C (33°F), this humidity feels like a damp chill that seeps into your bones, making travel outdoors an invigorating yet biting experience.

January Average Humidity in Windsor

This chart illustrates the average monthly humidity levels in Windsor, 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 Windsor is approximately 80%, 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 Windsor

In Windsor 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 Windsor, you can check the information here.

Maximum UV Index Levels in Windsor for January

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

Data source: Windsor 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 Windsor Compares to Other Months

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

This table compares monthly weather conditions in Windsor, 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 (33°F)	64 mm (2.5 inches)	80%	moderate
February Weather	2°C (35°F)	59 mm (2.3 inches)	78%	moderate
March Weather	9°C (48°F)	115 mm (4.5 inches)	75%	high
April Weather	13°C (55°F)	111 mm (4.4 inches)	77%	very high
May Weather	19°C (67°F)	183 mm (7.2 inches)	82%	very high
June Weather	25°C (77°F)	106 mm (4.2 inches)	83%	extreme
July Weather	27°C (80°F)	125 mm (4.9 inches)	81%	extreme
August Weather	25°C (77°F)	103 mm (4.1 inches)	78%	very high
September Weather	23°C (73°F)	65 mm (2.6 inches)	72%	very high
October Weather	15°C (59°F)	98 mm (3.8 inches)	72%	high
November Weather	7°C (46°F)	53 mm (2.1 inches)	84%	moderate
December Weather	4°C (40°F)	37 mm (1.5 inches)	86%	moderate