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May Weather in De Kalb, United States

Last updated: June 24, 2025

In De Kalb, United States, the average temperature in May is 23°C (74°F), with a minimum of 8°C (46°F) and a maximum soaring up to 36°C (96°F). Expect about 120 mm (4.7 in) of precipitation over the course of 12 days, coupled with a humidity level that hovers around 82%. Prepare for a warm and humid month!

May Temperature in De Kalb

In May in De Kalb, the average temperature is 23°C (74°F), with maximums reaching 36°C (96°F) and minimums dropping as low as 8°C (46°F). This variation in temperature makes it essential for travelers to pack both light clothing for the warm days and warmer layers for the cooler nights.

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

The chart illustrates May 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, May typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (96°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec485360647379818177685451
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.

May Precipitation in De Kalb

In De Kalb in May, the precipitation amount is 120 mm (4.7 in) over a period of 12 days.

May Precipitation Trends in De Kalb

The chart displays monthly precipitation patterns in De Kalb, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In De Kalb, May typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051601201481201671091299710966120
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in De Kalb

In De Kalb in May, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.

May Average Humidity in De Kalb

This chart illustrates the average monthly humidity levels in De Kalb, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in De Kalb is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in De Kalb

In De Kalb in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in De Kalb.

Maximum UV Index Levels in De Kalb for May

The chart shows the monthly maximum UV Index (UVI) for De Kalb in May, 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 May, the maximum UV index in De Kalb typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: De Kalb May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)105 mm (4.1 inches)85%moderate
February Weather12°C (53°F)160 mm (6.3 inches)84%high
March Weather15°C (60°F)120 mm (4.7 inches)82%very high
April Weather18°C (65°F)148 mm (5.8 inches)82%very high
May Weather23°C (74°F)120 mm (4.7 inches)82%extreme
June Weather26°C (79°F)167 mm (6.6 inches)79%extreme
July Weather27°C (81°F)109 mm (4.3 inches)82%extreme
August Weather27°C (81°F)129 mm (5.1 inches)77%extreme
September Weather25°C (78°F)97 mm (3.8 inches)74%very high
October Weather20°C (69°F)109 mm (4.3 inches)73%very high
November Weather12°C (55°F)66 mm (2.6 inches)85%high
December Weather11°C (51°F)120 mm (4.7 inches)88%moderate

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