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April Weather in Ann Arbor, United States

Last updated: June 24, 2025

In April, the average temperature in Ann Arbor, United States hovers around 8°C (47°F). Temperatures can swing dramatically, with a minimum of -7°C (20°F) and a maximum reaching 28°C (82°F). Travelers should also be prepared for moderate precipitation, averaging 89 mm (3.5 in) over about 14 days of the month, along with a high humidity level of 86%.

April Temperature in Ann Arbor

In April in Ann Arbor, the average temperature is 8°C (47°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as -7°C (20°F). This wide range of temperatures means travelers should be prepared for both warm and chilly conditions.

April Weather in Ann Arbor: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ann Arbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ann Arbor, April typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (82°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837476070747266543932
Data source: Temperature data for Ann Arbor 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 Ann Arbor

In Ann Arbor in April, the precipitation amount is 89 mm (3.5 in) over a span of 14 days.

April Precipitation Trends in Ann Arbor

The chart displays monthly precipitation patterns in Ann Arbor, 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 Ann Arbor, April typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec64677789121879772671027753
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ann Arbor

In Ann Arbor in April, humidity is 86%. With an average temperature of 8°C (47°F), this humidity feels like a chilling damp that penetrates your clothes, making outdoor adventures less enjoyable and encouraging you to seek warmth indoors rather than explore the sights.

April Average Humidity in Ann Arbor

This chart illustrates the average monthly humidity levels in Ann Arbor, 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 Ann Arbor is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ann Arbor

In Ann Arbor in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Ann Arbor.

Maximum UV Index Levels in Ann Arbor for April

The chart shows the monthly maximum UV Index (UVI) for Ann Arbor 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 Ann Arbor typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24599101097542
Data source: Ann Arbor 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 Ann Arbor Compares to Other Months

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

This table compares monthly weather conditions in Ann Arbor, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)64 mm (2.5 inches)88%low
February Weather-2°C (28°F)67 mm (2.6 inches)87%moderate
March Weather3°C (37°F)77 mm (3.0 inches)85%moderate
April Weather8°C (47°F)89 mm (3.5 inches)86%very high
May Weather15°C (60°F)121 mm (4.8 inches)80%very high
June Weather21°C (70°F)87 mm (3.4 inches)80%very high
July Weather24°C (75°F)97 mm (3.8 inches)80%very high
August Weather22°C (72°F)71 mm (2.8 inches)80%very high
September Weather19°C (66°F)67 mm (2.6 inches)80%high
October Weather12°C (54°F)102 mm (4.0 inches)84%moderate
November Weather4°C (39°F)77 mm (3.0 inches)89%moderate
December Weather0°C (33°F)53 mm (2.1 inches)86%low

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