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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 hovers around 23°C (73°F), with a minimum dip of 9°C (48°F) and peaks reaching up to 36°C (96°F). Expect 172 mm (6.8 in) of precipitation over approximately 13 days, contributing to an average humidity level of 81%. Prepare for a month that balances warmth with occasional rain!

May Temperature in De Kalb

In May in De Kalb, the average temperature is 23°C (73°F). The maximum can reach 36°C (96°F) and the minimum can be as low as 9°C (48°F). Visitors should be prepared for warm days but cool evenings, making it an ideal time for outdoor activities and exploring the local attractions.

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 (73°F), with highs reaching up to 36°C (96°F) and lows dropping to around 9°C (48°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.

May Precipitation in De Kalb

In De Kalb in May, the precipitation amount is 172 mm (6.8 in), which occurs over the course of 13 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 172 mm (6.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10415113421717210577938012068127
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 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.

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 81%, 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
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 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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