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April Weather in Casselman, Canada

Last updated: June 18, 2025

In April, the average temperature in Casselman, Canada hovers around 6°C (43°F). Temperatures can range from a chilly -10°C (14°F) to a warm 27°C (80°F). Expect 118 mm (4.6 in) of precipitation spread over 13 days, with an average humidity level of 82%.

April Temperature in Casselman

In April in Casselman, the average temperature is 6°C (43°F). Maximum temperatures can reach 27°C (80°F), while minimum temperatures can drop as low as -10°C (14°F). This range makes it ideal for travelers to pack for both warm and chilly conditions.

April Weather in Casselman: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Casselman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casselman, April typically has an average temperature of 6°C (43°F), with highs reaching up to 27°C (80°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec182029435766716961503424
Data source: Temperature data for Casselman 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 Casselman

In Casselman in April, the precipitation amount is 118 mm (4.6 in) over a span of 13 days.

April Precipitation Trends in Casselman

The chart displays monthly precipitation patterns in Casselman, 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 Casselman, April typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec818390118113101118977513410184
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Casselman

In Casselman in April, humidity is 82%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel less invigorating and more uncomfortable, as the heavy air can leave you feeling sluggish and fatigued during your travels.

April Average Humidity in Casselman

This chart illustrates the average monthly humidity levels in Casselman, 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 Casselman is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Casselman

In Casselman in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Casselman.

Maximum UV Index Levels in Casselman for April

The chart shows the monthly maximum UV Index (UVI) for Casselman 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 Casselman typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Casselman 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 Casselman Compares to Other Months

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

This table compares monthly weather conditions in Casselman, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)81 mm (3.2 inches)93%low
February Weather-7°C (20°F)83 mm (3.3 inches)93%moderate
March Weather-2°C (29°F)90 mm (3.5 inches)86%moderate
April Weather6°C (43°F)118 mm (4.6 inches)82%very high
May Weather14°C (57°F)113 mm (4.4 inches)75%very high
June Weather19°C (66°F)101 mm (4.0 inches)68%very high
July Weather22°C (72°F)118 mm (4.6 inches)69%very high
August Weather21°C (69°F)97 mm (3.8 inches)67%very high
September Weather16°C (61°F)75 mm (2.9 inches)72%high
October Weather10°C (50°F)134 mm (5.3 inches)83%moderate
November Weather1°C (34°F)101 mm (4.0 inches)88%moderate
December Weather-5°C (24°F)84 mm (3.3 inches)89%low

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