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October Weather in Champaign, United States

Last updated: June 24, 2025

In Champaign, United States, the average temperature in October hovers around 14°C (58°F), with a range that sees lows of -5°C (23°F) and highs reaching up to 33°C (91°F). This month also brings about 116 mm (4.5 in) of precipitation over approximately 12 days, contributing to a notably high average humidity of 79%.

October Temperature in Champaign

In October in Champaign, the average temperature is 14°C (58°F). Maximum temperatures can reach up to 33°C (91°F), while minimums can drop as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and chilly nights.

October Weather in Champaign: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Champaign, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Champaign, October typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (91°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec293243526574777470574136
Data source: Temperature data for Champaign 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 Champaign

In Champaign in October, the precipitation amount is 116 mm (4.5 in) over the course of 12 days.

October Precipitation Trends in Champaign

The chart displays monthly precipitation patterns in Champaign, 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 Champaign, October typically receives around 116 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec787711412014210384102831167556
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Champaign

In Champaign in October, humidity is 79%. With an average temperature of 14°C (58°F), this humidity feels like an oppressive blanket wrapped around you, making even the mild temperatures feel heavier and more stifling for traveling.

October Average Humidity in Champaign

This chart illustrates the average monthly humidity levels in Champaign, 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 Champaign is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Champaign

In Champaign in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Champaign, you can refer to this Hourly UV Index in Champaign.

Maximum UV Index Levels in Champaign for October

The chart shows the monthly maximum UV Index (UVI) for Champaign 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 Champaign typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Champaign 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 Champaign Compares to Other Months

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

This table compares monthly weather conditions in Champaign, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)78 mm (3.1 inches)84%moderate
February Weather0°C (32°F)77 mm (3.0 inches)82%moderate
March Weather6°C (43°F)114 mm (4.5 inches)84%high
April Weather11°C (53°F)120 mm (4.7 inches)83%very high
May Weather18°C (65°F)142 mm (5.6 inches)80%very high
June Weather24°C (75°F)103 mm (4.1 inches)83%extreme
July Weather25°C (78°F)84 mm (3.3 inches)82%very high
August Weather23°C (75°F)102 mm (4.0 inches)82%very high
September Weather21°C (70°F)83 mm (3.3 inches)79%very high
October Weather14°C (58°F)116 mm (4.5 inches)79%high
November Weather5°C (42°F)75 mm (2.9 inches)88%moderate
December Weather2°C (36°F)56 mm (2.2 inches)87%moderate

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