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November Weather in Ontario, United States

Last updated: June 24, 2025

The average temperature in Ontario, United States during November is a brisk 5°C (41°F). Temperatures can swing dramatically, with a minimum of -15°C (6°F) and a maximum reaching up to 25°C (77°F). Expect about 92 mm (3.6 in) of precipitation spread over 10 days, contributing to an average humidity of a high 89%.

November Temperature in Ontario

In November in Ontario, the average temperature is 5°C (41°F). Maximums can reach 25°C (77°F) while minimums can drop as low as -15°C (6°F). Be prepared for a wide range of weather conditions if you plan to travel during this time.

November Weather in Ontario: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Ontario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ontario, November typically has an average temperature of 5°C (41°F), with highs reaching up to 25°C (77°F) and lows dropping to around -15°C (6°F).
JanFebMarAprMayJunJulAugSepOctNovDec293240506270747267564135
Data source: Temperature data for Ontario 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.

November Precipitation in Ontario

In Ontario in November, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

November Precipitation Trends in Ontario

The chart displays monthly precipitation patterns in Ontario, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Ontario, November typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec81981031301261411238980989292
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Ontario

In Ontario in November humidity is 89%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less enjoyable and encouraging travelers to seek warmth indoors or layer up to stay comfortable while venturing out.

November Average Humidity in Ontario

This chart illustrates the average monthly humidity levels in Ontario, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Ontario is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Ontario

In Ontario in November, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ontario for better planning.

Maximum UV Index Levels in Ontario for November

The chart shows the monthly maximum UV Index (UVI) for Ontario in November, 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 November, the maximum UV index in Ontario typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Ontario November 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 November Weather in Ontario Compares to Other Months

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

This table compares monthly weather conditions in Ontario, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)81 mm (3.2 inches)88%moderate
February Weather0°C (32°F)98 mm (3.8 inches)87%moderate
March Weather5°C (40°F)103 mm (4.1 inches)87%high
April Weather10°C (50°F)130 mm (5.1 inches)87%very high
May Weather17°C (62°F)126 mm (5.0 inches)81%very high
June Weather21°C (71°F)141 mm (5.5 inches)82%very high
July Weather24°C (75°F)123 mm (4.8 inches)81%very high
August Weather22°C (72°F)89 mm (3.5 inches)78%very high
September Weather20°C (67°F)80 mm (3.2 inches)78%very high
October Weather14°C (57°F)98 mm (3.9 inches)82%high
November Weather5°C (41°F)92 mm (3.6 inches)89%moderate
December Weather1°C (35°F)92 mm (3.6 inches)86%low

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