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April Weather in Isle, United States

Last updated: June 24, 2025

The average temperature in Isle, United States in April hovers around 3°C (39°F), making it a cool time of year. Expect minimum temperatures to dip as low as -15°C (5°F), while the mercury can rise to a comfortable 21°C (71°F) on warmer days. With an average precipitation of 77 mm (3.0 in) over approximately 11 days, it's wise to have an umbrella handy. Additionally, the air tends to be quite moist, with an average humidity level of 83%.

April Temperature in Isle

In April in Isle, the average temperature is 3°C (39°F), with maximums reaching up to 21°C (71°F) and minimums dropping as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both cold and warm weather.

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

The chart illustrates April temperature patterns in Isle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isle, April typically has an average temperature of 3°C (39°F), with highs reaching up to 21°C (71°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec131328385568726961463020
Data source: Temperature data for Isle 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 Isle

In Isle in April, the precipitation amount is 77 mm (3.0 in) over the course of 11 days.

April Precipitation Trends in Isle

The chart displays monthly precipitation patterns in Isle, 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 Isle, April typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2026467779851001141071303756
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Isle

In Isle in April, humidity is 83%. With an average temperature of 3°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.

April Average Humidity in Isle

This chart illustrates the average monthly humidity levels in Isle, 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 Isle is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%88%83%76%76%76%77%77%82%88%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Isle

In Isle 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 Isle.

Maximum UV Index Levels in Isle for April

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

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

This table compares monthly weather conditions in Isle, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)20 mm (0.8 inches)92%low
February Weather-11°C (13°F)26 mm (1.0 inches)93%moderate
March Weather-2°C (29°F)46 mm (1.8 inches)88%moderate
April Weather3°C (39°F)77 mm (3.0 inches)83%high
May Weather13°C (55°F)79 mm (3.1 inches)76%very high
June Weather20°C (68°F)85 mm (3.3 inches)76%very high
July Weather22°C (73°F)100 mm (3.9 inches)76%very high
August Weather20°C (69°F)114 mm (4.5 inches)77%very high
September Weather16°C (62°F)107 mm (4.2 inches)77%high
October Weather8°C (46°F)130 mm (5.1 inches)82%moderate
November Weather-1°C (30°F)37 mm (1.5 inches)87%moderate
December Weather-7°C (20°F)56 mm (2.2 inches)89%low

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