April Weather in Saint-Leonard, Canada

Last updated: June 18, 2025

In April, the average temperature in Saint-Leonard, Canada hovers around 3°C (37°F), with extremes ranging from a brisk -13°C (9°F) to a mild 19°C (66°F). Visitors can expect 121 mm (4.8 in) of precipitation spread over 14 days, contributing to a notably high average humidity of 87%. Prepare for a season that combines cool air with a touch of dampness!

April Temperature in Saint-Leonard

In April in Saint-Leonard, the average temperature is 3°C (37°F). Maximums can reach 19°C (66°F), and minimums can be as low as -13°C (9°F). Be prepared for a wide range of temperatures when visiting during this time, and pack both warm and mild-weather clothing.

April Weather in Saint-Leonard: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Saint-Leonard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Leonard, April typically has an average temperature of 3°C (37°F), with highs reaching up to 19°C (66°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec131524375060656455443018
Data source: Temperature data for Saint-Leonard 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.

April Precipitation in Saint-Leonard

In Saint-Leonard in April, the precipitation amount is 121 mm (4.8 in) over a span of 14 days.

April Precipitation Trends in Saint-Leonard

The chart displays monthly precipitation patterns in Saint-Leonard, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Saint-Leonard, April typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec927576121100908984106126125110
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Saint-Leonard

In Saint-Leonard in April, humidity is 87%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating proper layers to stay warm while navigating the wet conditions.

April Average Humidity in Saint-Leonard

This chart illustrates the average monthly humidity levels in Saint-Leonard, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Saint-Leonard is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Saint-Leonard

In Saint-Leonard in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Saint-Leonard.

Maximum UV Index Levels in Saint-Leonard for April

The chart shows the monthly maximum UV Index (UVI) for Saint-Leonard in April, 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 April, the maximum UV index in Saint-Leonard typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887432
Data source: Saint-Leonard April 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 April Weather in Saint-Leonard Compares to Other Months

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

This table compares monthly weather conditions in Saint-Leonard, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)92 mm (3.6 inches)93%low
February Weather-9°C (15°F)75 mm (2.9 inches)92%moderate
March Weather-5°C (24°F)76 mm (3.0 inches)90%moderate
April Weather3°C (37°F)121 mm (4.8 inches)87%high
May Weather10°C (51°F)100 mm (3.9 inches)82%very high
June Weather15°C (60°F)90 mm (3.5 inches)77%very high
July Weather19°C (66°F)89 mm (3.5 inches)81%very high
August Weather18°C (64°F)84 mm (3.3 inches)83%very high
September Weather13°C (56°F)106 mm (4.2 inches)85%high
October Weather7°C (44°F)126 mm (4.9 inches)87%moderate
November Weather-1°C (31°F)125 mm (4.9 inches)87%moderate
December Weather-8°C (18°F)110 mm (4.3 inches)90%low

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