October Weather in Plainfield, United States

Last updated: June 24, 2025

In Plainfield, United States, the average temperature in October hovers around 9°C (49°F). Expect a chilly minimum of -5°C (23°F), while a warm maximum can reach up to 28°C (83°F). With 107 mm (4.2 in) of precipitation spread over 12 days, it's a good idea to keep an umbrella handy. The air is quite humid, boasting an average humidity of 84%, making for a refreshing yet cool atmosphere.

October Temperature in Plainfield

In October in Plainfield, the average temperature is 9°C (49°F). Maximums can reach 28°C (83°F), while minimums can be as low as -5°C (23°F). Be prepared for both warm and chilly weather during your travels.

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

The chart illustrates October temperature patterns in Plainfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plainfield, October typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (83°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec191933435769736963493425
Data source: Temperature data for Plainfield 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 Plainfield

In Plainfield in October, the precipitation amount is 107 mm (4.2 in) spread over 12 days.

October Precipitation Trends in Plainfield

The chart displays monthly precipitation patterns in Plainfield, 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 Plainfield, October typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec395262991111091211281051075150
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Plainfield

In Plainfield in October, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

October Average Humidity in Plainfield

This chart illustrates the average monthly humidity levels in Plainfield, 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 Plainfield is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Plainfield

In Plainfield in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Plainfield.

Maximum UV Index Levels in Plainfield for October

The chart shows the monthly maximum UV Index (UVI) for Plainfield 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 Plainfield typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Plainfield 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 Plainfield Compares to Other Months

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

This table compares monthly weather conditions in Plainfield, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)39 mm (1.5 inches)89%low
February Weather-7°C (20°F)52 mm (2.0 inches)90%moderate
March Weather1°C (33°F)62 mm (2.4 inches)87%moderate
April Weather6°C (43°F)99 mm (3.9 inches)84%very high
May Weather14°C (58°F)111 mm (4.4 inches)77%very high
June Weather20°C (69°F)109 mm (4.3 inches)75%very high
July Weather23°C (73°F)121 mm (4.7 inches)74%very high
August Weather21°C (69°F)128 mm (5.0 inches)73%very high
September Weather17°C (63°F)105 mm (4.1 inches)78%high
October Weather9°C (49°F)107 mm (4.2 inches)84%moderate
November Weather1°C (34°F)51 mm (2.0 inches)89%moderate
December Weather-4°C (26°F)50 mm (2.0 inches)87%low

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