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October Weather in De Kalb, United States

Last updated: June 24, 2025

In De Kalb, United States, the average temperature in October hovers around a pleasant 20°C (69°F). However, be prepared for a range of temperatures, with the minimum dipping to 2°C (35°F) and the maximum soaring up to 37°C (99°F). During this month, you can expect about 109 mm (4.3 in) of precipitation spread over 8 days, contributing to an average humidity of 73%.

October Temperature in De Kalb

In October in De Kalb, the average temperature is 20°C (69°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 2°C (35°F). Be prepared for a wide range of temperatures while exploring the attractions of De Kalb.

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

The chart illustrates October 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, October typically has an average temperature of 20°C (69°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (35°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.

October Precipitation in De Kalb

In De Kalb in October, the total precipitation amount is 109 mm (4.3 in) spread over 8 days.

October Precipitation Trends in De Kalb

The chart displays monthly precipitation patterns in De Kalb, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In De Kalb, October typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051601201481201671091299710966120
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in De Kalb

In De Kalb in October humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.

October Average Humidity in De Kalb

This chart illustrates the average monthly humidity levels in De Kalb, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in De Kalb is approximately 73%, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in De Kalb

In De Kalb in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in De Kalb.

Maximum UV Index Levels in De Kalb for October

The chart shows the monthly maximum UV Index (UVI) for De Kalb in October, 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 October, the maximum UV index in De Kalb typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: De Kalb October 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 October 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 October’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 October’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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