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January Weather in Windsor, Canada

Last updated: June 18, 2025

In January, the average temperature in Windsor, Canada hovers around -4°C (25°F). Expect considerable variation, with minimums plummeting to -21°C (-6°F) and maximums peaking at 16°C (60°F). This month brings about 84 mm (3.3 in) of precipitation spread over 9 days, while the air remains quite humid, with an average relative humidity of 82%.

January Temperature in Windsor

In January in Windsor, the average temperature is -4°C (25°F). The maximum can reach 16°C (60°F), while the minimum can dip as low as -21°C (-6°F). Travelers should prepare for a wide range of temperatures and ensure they pack appropriate clothing for both warmer and colder conditions.

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 -4°C (25°F), with highs reaching up to 16°C (60°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec252530415060676860503930
Data source: Temperature data for Windsor generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Windsor

In Windsor in January, the precipitation amount is 84 mm (3.3 in) spread over 9 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 84 mm (3.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8510590105999987809583140108
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Windsor

In Windsor in January, humidity is 82%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating warm, layered clothing to shield against the damp cold.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%82%82%82%84%86%85%83%83%85%83%
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 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 Windsor, you can visit Hourly UV Index in Windsor.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
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.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)84 mm (3.3 inches)82%low
February Weather-4°C (26°F)105 mm (4.1 inches)83%moderate
March Weather-1°C (31°F)90 mm (3.5 inches)82%moderate
April Weather5°C (42°F)105 mm (4.1 inches)82%high
May Weather10°C (50°F)99 mm (3.9 inches)82%very high
June Weather16°C (61°F)99 mm (3.9 inches)84%very high
July Weather19°C (67°F)87 mm (3.4 inches)86%very high
August Weather20°C (68°F)80 mm (3.1 inches)85%very high
September Weather16°C (61°F)95 mm (3.7 inches)83%high
October Weather10°C (50°F)83 mm (3.3 inches)83%moderate
November Weather4°C (39°F)140 mm (5.5 inches)85%moderate
December Weather-1°C (30°F)108 mm (4.3 inches)83%low

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