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October Weather in Sumner, United States

Last updated: June 24, 2025

In October, the average temperature in Sumner, United States hovers around 16°C (60°F). Expect a wide range of temperatures, with minimums plunging to -3°C (27°F) and maximums soaring up to 34°C (94°F). During this month, you can anticipate around 100 mm (3.9 in) of precipitation over 10 days, coupled with a notable average humidity of 79%.

October Temperature in Sumner

In October in Sumner, the average temperature is 16°C (60°F). Maximums can reach 34°C (94°F), while minimums can drop as low as -3°C (27°F). Therefore, travelers should be prepared for both warm and chilly conditions when visiting.

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

The chart illustrates October temperature patterns in Sumner, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumner, October typically has an average temperature of 16°C (60°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec333646556877797672604439
Data source: Temperature data for Sumner 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 Sumner

In Sumner in October, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.

October Precipitation Trends in Sumner

The chart displays monthly precipitation patterns in Sumner, 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 Sumner, October typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9110713312013311297927010010295
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Sumner

In Sumner in October humidity is 79%. With an average temperature of 16°C (60°F), this humidity feels like a warm, damp blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent breaks to stay cool and refreshed while traveling.

October Average Humidity in Sumner

This chart illustrates the average monthly humidity levels in Sumner, 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 Sumner 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 Sumner

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

Maximum UV Index Levels in Sumner for October

The chart shows the monthly maximum UV Index (UVI) for Sumner 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 Sumner typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111099643
Data source: Sumner 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 Sumner Compares to Other Months

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

This table compares monthly weather conditions in Sumner, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)91 mm (3.6 inches)84%moderate
February Weather2°C (37°F)107 mm (4.2 inches)82%moderate
March Weather8°C (47°F)133 mm (5.2 inches)84%high
April Weather13°C (56°F)120 mm (4.7 inches)83%very high
May Weather20°C (68°F)133 mm (5.3 inches)80%very high
June Weather25°C (77°F)112 mm (4.4 inches)83%extreme
July Weather26°C (80°F)97 mm (3.8 inches)82%very high
August Weather25°C (77°F)92 mm (3.6 inches)82%very high
September Weather22°C (73°F)70 mm (2.7 inches)79%very high
October Weather16°C (60°F)100 mm (3.9 inches)79%high
November Weather7°C (44°F)102 mm (4.0 inches)88%moderate
December Weather4°C (39°F)95 mm (3.7 inches)87%moderate

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