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January Weather in Joliette, Canada

Last updated: June 18, 2025

In January, the average temperature in Joliette, Canada hovers around -10°C (15°F). Expect chilly days, with minimum lows plummeting to -34°C (-28°F) and a rare maximum of 10°C (49°F). Additionally, 82 mm (3.2 in) of precipitation typically falls over 9 days, creating a damp atmosphere with an average humidity of 93%.

January Temperature in Joliette

In January in Joliette, the average temperature is -10°C (15°F), with maximums reaching 10°C (49°F) and minimums plummeting to -34°C (-28°F). Travelers should be prepared for extreme cold conditions and pack accordingly.

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

The chart illustrates January temperature patterns in Joliette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joliette, January typically has an average temperature of -10°C (15°F), with highs reaching up to 10°C (49°F) and lows dropping to around -34°C (-28°F).
JanFebMarAprMayJunJulAugSepOctNovDec151827415665716860483221
Data source: Temperature data for Joliette 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 Joliette

In Joliette in January, the total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 days.

January Precipitation Trends in Joliette

The chart displays monthly precipitation patterns in Joliette, 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 Joliette, January typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec828284120959084956411911188
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Joliette

In Joliette in January humidity is 93%. With an average temperature of -10°C (15°F), this humidity feels like an eerie chill that penetrates even the warmest clothing, making outdoor activities uncomfortable and travel quite challenging.

January Average Humidity in Joliette

This chart illustrates the average monthly humidity levels in Joliette, 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 Joliette is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Joliette

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

Maximum UV Index Levels in Joliette for January

The chart shows the monthly maximum UV Index (UVI) for Joliette 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 Joliette typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Joliette 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 Joliette Compares to Other Months

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

This table compares monthly weather conditions in Joliette, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)82 mm (3.2 inches)93%low
February Weather-8°C (18°F)82 mm (3.2 inches)92%moderate
March Weather-3°C (27°F)84 mm (3.3 inches)86%moderate
April Weather5°C (41°F)120 mm (4.7 inches)85%high
May Weather13°C (56°F)95 mm (3.8 inches)80%very high
June Weather18°C (65°F)90 mm (3.5 inches)74%very high
July Weather22°C (71°F)84 mm (3.3 inches)76%very high
August Weather20°C (68°F)95 mm (3.7 inches)75%very high
September Weather15°C (60°F)64 mm (2.5 inches)78%high
October Weather9°C (48°F)119 mm (4.7 inches)86%moderate
November Weather0°C (32°F)110 mm (4.4 inches)88%moderate
December Weather-6°C (21°F)88 mm (3.4 inches)89%low

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