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April Weather in Casselton, United States

Last updated: June 24, 2025

In Casselton, United States, the average temperature in April hovers around 4°C (40°F), with a striking variability: temperatures can dip as low as -16°C (4°F) and soar to a pleasant 24°C (75°F). Expect about 47 mm (1.9 in) of precipitation spread over 7 days, contributing to an average humidity of 81%. Stay prepared for a mix of chilly and mild weather, perfect for layering!

April Temperature in Casselton

In April in Casselton, the average temperature is 4°C (40°F), with maximums reaching 24°C (75°F) and minimums dipping as low as -16°C (4°F). Be sure to pack layers and prepare for a wide range of temperatures while traveling.

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

The chart illustrates April temperature patterns in Casselton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casselton, April typically has an average temperature of 4°C (40°F), with highs reaching up to 24°C (75°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec111028405770736861442919
Data source: Temperature data for Casselton 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 Casselton

In Casselton in April, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.

April Precipitation Trends in Casselton

The chart displays monthly precipitation patterns in Casselton, 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 Casselton, April typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec172027475798748768821739
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Casselton

In Casselton in April humidity is 81%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that can make traveling quite uncomfortable, as the cold air clings uncomfortably to your skin and the moisture can quickly sap your body heat.

April Average Humidity in Casselton

This chart illustrates the average monthly humidity levels in Casselton, 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 Casselton is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%85%81%75%79%77%78%77%79%86%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Casselton

In Casselton 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 Casselton.

Maximum UV Index Levels in Casselton for April

The chart shows the monthly maximum UV Index (UVI) for Casselton 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 Casselton typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Casselton 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 Casselton Compares to Other Months

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

This table compares monthly weather conditions in Casselton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (12°F)17 mm (0.7 inches)90%low
February Weather-12°C (11°F)20 mm (0.8 inches)92%moderate
March Weather-2°C (28°F)26 mm (1.0 inches)85%moderate
April Weather4°C (40°F)47 mm (1.9 inches)81%high
May Weather14°C (57°F)57 mm (2.2 inches)75%very high
June Weather21°C (70°F)98 mm (3.9 inches)79%very high
July Weather23°C (73°F)74 mm (2.9 inches)76%very high
August Weather20°C (69°F)87 mm (3.4 inches)78%very high
September Weather16°C (61°F)68 mm (2.7 inches)77%high
October Weather7°C (45°F)82 mm (3.2 inches)79%moderate
November Weather-2°C (29°F)17 mm (0.7 inches)86%moderate
December Weather-7°C (19°F)39 mm (1.5 inches)86%low

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