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April Weather in Idalou, United States

Last updated: June 24, 2025

In April, the average temperature in Idalou, United States hovers around 16°C (61°F). Expect a range of temperatures, with minimums dipping to -3°C (27°F) and maximums soaring to 34°C (94°F). During this time, precipitation averages 31 mm (1.2 in) across about 4 days, while the air maintains an average humidity of 70%.

April Temperature in Idalou

In April in Idalou, the average temperature is 16°C (61°F). Maximums can reach 34°C (94°F), and minimums can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates April temperature patterns in Idalou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Idalou, April typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec404354607178818073615044
Data source: Temperature data for Idalou 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 Idalou

In Idalou in April, the total precipitation amount is 31 mm (1.2 in) over a span of 4 days.

April Precipitation Trends in Idalou

The chart displays monthly precipitation patterns in Idalou, 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 Idalou, April typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec171244316447283357511616
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Idalou

In Idalou in April humidity is 70%. With an average temperature of 16°C (61°F), this humidity feels like a warm, damp blanket wrapping around you, making travel somewhat uncomfortable as you navigate the sticky air while trying to enjoy your surroundings.

April Average Humidity in Idalou

This chart illustrates the average monthly humidity levels in Idalou, 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 Idalou is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%74%66%70%75%79%78%71%69%70%82%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Idalou

In Idalou in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Idalou.

Maximum UV Index Levels in Idalou for April

The chart shows the monthly maximum UV Index (UVI) for Idalou 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 Idalou typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121210864
Data source: Idalou 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 Idalou Compares to Other Months

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

This table compares monthly weather conditions in Idalou, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)17 mm (0.6 inches)75%moderate
February Weather6°C (43°F)12 mm (0.5 inches)74%high
March Weather12°C (54°F)44 mm (1.7 inches)66%very high
April Weather16°C (61°F)31 mm (1.2 inches)70%extreme
May Weather21°C (71°F)64 mm (2.5 inches)75%extreme
June Weather26°C (78°F)47 mm (1.9 inches)79%extreme
July Weather27°C (81°F)28 mm (1.1 inches)78%extreme
August Weather27°C (80°F)33 mm (1.3 inches)71%extreme
September Weather23°C (74°F)57 mm (2.2 inches)69%very high
October Weather16°C (61°F)51 mm (2.0 inches)70%very high
November Weather10°C (51°F)16 mm (0.6 inches)82%high
December Weather7°C (44°F)16 mm (0.6 inches)82%moderate

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