October Weather in Mill Plain, United States

Last updated: June 24, 2025

In October, the average temperature in Mill Plain, United States hovers around 11°C (52°F), with a minimum dipping to -2°C (29°F) and a maximum soaring up to 26°C (79°F). Expect 199 mm (7.8 in) of precipitation spread over 14 days, contributing to a high average humidity of 81%. Prepare for a mix of cool and warm days as you navigate this vibrant climate!

October Temperature in Mill Plain

In October in Mill Plain, the average temperature is 11°C (52°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -2°C (29°F). This makes it essential for travelers to pack layers to stay comfortable throughout the day.

October Weather in Mill Plain: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Mill Plain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mill Plain, October typically has an average temperature of 11°C (52°F), with highs reaching up to 26°C (79°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Mill Plain generated using information from the Copernicus Climate Change Service.

October Precipitation in Mill Plain

In Mill Plain in October, the total precipitation amount is 199 mm (7.8 in), recorded over a span of 14 days.

October Precipitation Trends in Mill Plain

The chart displays monthly precipitation patterns in Mill Plain, 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 Mill Plain, October typically receives around 199 mm (7.8 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Mill Plain

In Mill Plain in October humidity is 81%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor excursions quite uncomfortable, causing a muggy heaviness that dampens clothes and leaves travelers longing for dryer weather.

October Average Humidity in Mill Plain

This chart illustrates the average monthly humidity levels in Mill Plain, 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 Mill Plain is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Mill Plain

In Mill Plain 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 Mill Plain.

Maximum UV Index Levels in Mill Plain for October

The chart shows the monthly maximum UV Index (UVI) for Mill Plain 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 Mill Plain typically reaches 5, which falls under the moderate exposure category.

Data source: Mill Plain 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 Mill Plain Compares to Other Months

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

This table compares monthly weather conditions in Mill Plain, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	246 mm (9.7 inches)	85%	low
February Weather	4°C (40°F)	260 mm (10.2 inches)	84%	moderate
March Weather	7°C (45°F)	189 mm (7.4 inches)	85%	moderate
April Weather	10°C (50°F)	166 mm (6.5 inches)	83%	high
May Weather	14°C (57°F)	86 mm (3.4 inches)	83%	very high
June Weather	17°C (63°F)	75 mm (3.0 inches)	83%	very high
July Weather	20°C (68°F)	10 mm (0.4 inches)	82%	very high
August Weather	20°C (69°F)	13 mm (0.5 inches)	74%	very high
September Weather	17°C (63°F)	111 mm (4.4 inches)	71%	high
October Weather	11°C (52°F)	199 mm (7.8 inches)	81%	moderate
November Weather	7°C (46°F)	260 mm (10.2 inches)	87%	moderate
December Weather	5°C (40°F)	273 mm (10.7 inches)	87%	low