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April Weather in Decatur, United States

Last updated: June 24, 2025

In April, the average temperature in Decatur, United States hovers around 16°C (61°F), with a notable range that can see lows of -1°C (31°F) and highs reaching 31°C (89°F). Expect 152 mm (6.0 in) of precipitation over about 10 days, contributing to an average humidity of 82%. Plan accordingly for a blend of seasonal charm and occasional rain!

April Temperature in Decatur

In April in Decatur, the average temperature is 16°C (61°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling during this time!

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

The chart illustrates April temperature patterns in Decatur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Decatur, April typically has an average temperature of 16°C (61°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec434854607076807875655046
Data source: Temperature data for Decatur 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 Decatur

In Decatur in April, the total precipitation amount is 152 mm (6.0 in), observed over a period of 10 days.

April Precipitation Trends in Decatur

The chart displays monthly precipitation patterns in Decatur, 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 Decatur, April typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec981731621521201041081149312478133
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Decatur

In Decatur in April humidity is 82%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making travel feel a bit sluggish and requiring frequent breaks to hydrate and cool down.

April Average Humidity in Decatur

This chart illustrates the average monthly humidity levels in Decatur, 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 Decatur is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Decatur

In Decatur in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Decatur.

Maximum UV Index Levels in Decatur for April

The chart shows the monthly maximum UV Index (UVI) for Decatur 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 Decatur typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Decatur 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 Decatur Compares to Other Months

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

This table compares monthly weather conditions in Decatur, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)98 mm (3.8 inches)86%moderate
February Weather9°C (48°F)173 mm (6.8 inches)86%high
March Weather12°C (54°F)162 mm (6.4 inches)86%very high
April Weather16°C (61°F)152 mm (6.0 inches)82%very high
May Weather21°C (71°F)120 mm (4.7 inches)85%extreme
June Weather24°C (76°F)104 mm (4.1 inches)85%extreme
July Weather27°C (80°F)108 mm (4.2 inches)83%extreme
August Weather26°C (79°F)114 mm (4.5 inches)76%very high
September Weather24°C (75°F)93 mm (3.7 inches)76%very high
October Weather18°C (65°F)124 mm (4.9 inches)80%high
November Weather10°C (51°F)78 mm (3.1 inches)88%moderate
December Weather8°C (47°F)133 mm (5.2 inches)88%moderate

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