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October Weather in Riley, United States

Last updated: June 24, 2025

In Riley, United States, the average temperature in October hovers around 14°C (57°F). Expect a range, with minimums dipping to -4°C (25°F) and maximums soaring to 34°C (94°F). Over the month, anticipate 98 mm (3.9 in) of precipitation across 8 days, contributing to an average humidity level of 71%. Make sure to pack accordingly!

October Temperature in Riley

In October in Riley, the average temperature is 14°C (57°F). Maximums can reach 34°C (94°F), while minimums can drop as low as -4°C (25°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly!

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

The chart illustrates October temperature patterns in Riley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riley, October typically has an average temperature of 14°C (57°F), with highs reaching up to 34°C (94°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec313246546678817773574437
Data source: Temperature data for Riley 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 Riley

In Riley in October, the total precipitation amount is 98 mm (3.9 in), occurring over 8 days.

October Precipitation Trends in Riley

The chart displays monthly precipitation patterns in Riley, 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 Riley, October typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec30288467185798011964983327
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Riley

In Riley in October, humidity is 71%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities less enjoyable and encouraging visitors to seek refuge in shaded spots or air-conditioned spaces.

October Average Humidity in Riley

This chart illustrates the average monthly humidity levels in Riley, 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 Riley is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Riley

In Riley 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 Riley, you can refer to this Hourly UV Index in Riley.

Maximum UV Index Levels in Riley for October

The chart shows the monthly maximum UV Index (UVI) for Riley 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 Riley typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Riley 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 Riley Compares to Other Months

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

This table compares monthly weather conditions in Riley, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)30 mm (1.2 inches)76%moderate
February Weather0°C (32°F)28 mm (1.1 inches)77%moderate
March Weather8°C (46°F)84 mm (3.3 inches)70%high
April Weather12°C (55°F)67 mm (2.6 inches)73%very high
May Weather19°C (66°F)185 mm (7.3 inches)82%very high
June Weather26°C (79°F)79 mm (3.1 inches)82%extreme
July Weather27°C (81°F)80 mm (3.1 inches)81%extreme
August Weather25°C (78°F)119 mm (4.7 inches)78%very high
September Weather23°C (73°F)64 mm (2.5 inches)71%very high
October Weather14°C (57°F)98 mm (3.9 inches)71%high
November Weather7°C (44°F)33 mm (1.3 inches)81%moderate
December Weather3°C (37°F)27 mm (1.0 inches)84%moderate

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