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April Weather in De Kalb, United States

Last updated: June 24, 2025

In April, the average temperature in De Kalb, United States hovers around 17°C (63°F), creating a pleasant atmosphere for both locals and visitors. However, temperatures can swing widely, with a minimum of 0°C (33°F) and a maximum reaching up to 32°C (89°F). Expect 217 mm (8.5 in) of precipitation spread over 11 days, contributing to an average humidity of 79%, adding a touch of tropical allure to the climate.

April Temperature in De Kalb

In April in De Kalb, the average temperature is 17°C (63°F), with maximums reaching 32°C (89°F) and minimums dipping as low as 0°C (33°F). This varied climate makes it essential to pack for both warm and cool conditions when traveling to De Kalb during this time.

April Weather in De Kalb: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in De Kalb, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In De Kalb, April typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (89°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec464858637380838278675450
Data source: Temperature data for De Kalb 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 De Kalb

In De Kalb in April, the precipitation amount is 217 mm (8.5 in) occurring over a span of 11 days.

April Precipitation Trends in De Kalb

The chart displays monthly precipitation patterns in De Kalb, 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 De Kalb, April typically receives around 217 mm (8.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10415113421717210577938012068127
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in De Kalb

In De Kalb in April, humidity is 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

April Average Humidity in De Kalb

This chart illustrates the average monthly humidity levels in De Kalb, 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 De Kalb is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in De Kalb

In De Kalb 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 De Kalb.

Maximum UV Index Levels in De Kalb for April

The chart shows the monthly maximum UV Index (UVI) for De Kalb 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 De Kalb typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: De Kalb 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 De Kalb Compares to Other Months

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

This table compares monthly weather conditions in De Kalb, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)104 mm (4.1 inches)82%moderate
February Weather9°C (49°F)151 mm (6.0 inches)80%high
March Weather15°C (59°F)134 mm (5.3 inches)78%very high
April Weather17°C (63°F)217 mm (8.5 inches)79%very high
May Weather23°C (73°F)172 mm (6.8 inches)81%extreme
June Weather27°C (80°F)105 mm (4.1 inches)77%extreme
July Weather28°C (83°F)77 mm (3.0 inches)72%extreme
August Weather28°C (83°F)93 mm (3.7 inches)65%extreme
September Weather26°C (78°F)80 mm (3.1 inches)63%very high
October Weather19°C (67°F)120 mm (4.7 inches)70%very high
November Weather13°C (55°F)68 mm (2.7 inches)82%high
December Weather10°C (50°F)127 mm (5.0 inches)88%moderate

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