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April Weather in Glen Ellyn, United States

Last updated: June 24, 2025

In April, the average temperature in Glen Ellyn, United States hovers around 9°C (48°F). Expect a temperature range that can dip to a brisk -7°C (19°F) and soar up to a warm 29°C (84°F). With 115 mm (4.5 in) of precipitation spread across 13 days, you might want to carry an umbrella! The average humidity during this month is a substantial 85%, adding to the overall atmosphere of the region.

April Temperature in Glen Ellyn

In April in Glen Ellyn, the average temperature is 9°C (48°F). Maximum temperatures can reach 29°C (84°F), while the minimum can be as low as -7°C (19°F). Be prepared for a wide range of weather conditions if you're planning to travel during this month.

April Weather in Glen Ellyn: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Glen Ellyn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Ellyn, April typically has an average temperature of 9°C (48°F), with highs reaching up to 29°C (84°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec262839475971757367543933
Data source: Temperature data for Glen Ellyn 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 Glen Ellyn

In Glen Ellyn in April, the precipitation amount is 115 mm (4.5 in) spread over 13 days.

April Precipitation Trends in Glen Ellyn

The chart displays monthly precipitation patterns in Glen Ellyn, 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 Glen Ellyn, April typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec61607911516413410592851275553
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Glen Ellyn

In Glen Ellyn in April humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

April Average Humidity in Glen Ellyn

This chart illustrates the average monthly humidity levels in Glen Ellyn, 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 Glen Ellyn is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Glen Ellyn

In Glen Ellyn 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 Glen Ellyn.

Maximum UV Index Levels in Glen Ellyn for April

The chart shows the monthly maximum UV Index (UVI) for Glen Ellyn 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 Glen Ellyn typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098632
Data source: Glen Ellyn 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 Glen Ellyn Compares to Other Months

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

This table compares monthly weather conditions in Glen Ellyn, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)61 mm (2.4 inches)82%moderate
February Weather-2°C (28°F)60 mm (2.4 inches)83%moderate
March Weather4°C (39°F)79 mm (3.1 inches)84%high
April Weather9°C (48°F)115 mm (4.5 inches)85%very high
May Weather15°C (60°F)164 mm (6.4 inches)79%very high
June Weather21°C (71°F)134 mm (5.3 inches)82%very high
July Weather24°C (75°F)105 mm (4.1 inches)80%very high
August Weather23°C (73°F)92 mm (3.6 inches)81%very high
September Weather20°C (68°F)85 mm (3.3 inches)80%very high
October Weather12°C (54°F)127 mm (5.0 inches)82%high
November Weather4°C (39°F)55 mm (2.2 inches)88%moderate
December Weather0°C (33°F)53 mm (2.1 inches)84%low

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