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March Weather in Glen Ellyn, United States

Last updated: June 24, 2025

In Glen Ellyn, United States, the average temperature in March hovers at a brisk 4°C (39°F). Expect a range that can dip as low as -20°C (-3°F) and soar to a warm 26°C (79°F). This month, you'll encounter about 79 mm (3.1 in) of precipitation spread over 10 days, contributing to an average humidity of 84%. Be prepared for a blend of chilly days and wet weather!

March Temperature in Glen Ellyn

In March in Glen Ellyn, the average temperature is 4°C (39°F). Maximum temperatures can reach 26°C (79°F), while minimum temperatures can drop as low as -20°C (-3°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates March 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, March typically has an average temperature of 4°C (39°F), with highs reaching up to 26°C (79°F) and lows dropping to around -20°C (-3°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.

March Precipitation in Glen Ellyn

In Glen Ellyn in March, the precipitation amount is 79 mm (3.1 in) over a span of 10 days.

March Precipitation Trends in Glen Ellyn

The chart displays monthly precipitation patterns in Glen Ellyn, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Glen Ellyn, March typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec61607911516413410592851275553
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Glen Ellyn

In Glen Ellyn in March, humidity is 84%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions uncomfortable and demanding more layers than you anticipate while traveling.

March Average Humidity in Glen Ellyn

This chart illustrates the average monthly humidity levels in Glen Ellyn, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Glen Ellyn is approximately 84%, 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 March generated using information from the Copernicus Climate Change Service.

March UV Index in Glen Ellyn

In Glen Ellyn in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Glen Ellyn, you can refer to this Hourly UV Index in Glen Ellyn.

Maximum UV Index Levels in Glen Ellyn for March

The chart shows the monthly maximum UV Index (UVI) for Glen Ellyn in March, 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 March, the maximum UV index in Glen Ellyn typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098632
Data source: Glen Ellyn March 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 March 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 March’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 March’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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