October Weather in Walnut, United States

Last updated: June 24, 2025

In October, the average temperature in Walnut, United States hovers around 12°C (55°F). Expect a chilly minimum of -5°C (24°F) and a warm maximum of 31°C (88°F). This month typically brings about 127 mm (5.0 in) of precipitation over 13 days, with an average humidity of 82%. Get ready for a mix of weather!

October Temperature in Walnut

In October in Walnut, the average temperature is 12°C (55°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -5°C (24°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates October temperature patterns in Walnut, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walnut, October typically has an average temperature of 12°C (55°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (24°F).

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

October Precipitation in Walnut

In Walnut in October, the total precipitation amount is 127 mm (5.0 in) spread over 13 days.

October Precipitation Trends in Walnut

The chart displays monthly precipitation patterns in Walnut, 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 Walnut, October typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Walnut

In Walnut in October, humidity is 82%. With an average temperature of 12°C (55°F), this humidity feels like a heavy blanket wrapping around you, making even a simple walk feel laborious and sticky, which can be quite exhausting for traveling.

October Average Humidity in Walnut

This chart illustrates the average monthly humidity levels in Walnut, 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 Walnut is approximately 82%, 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 Walnut

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

Maximum UV Index Levels in Walnut for October

The chart shows the monthly maximum UV Index (UVI) for Walnut 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 Walnut typically reaches 6, which falls under the high exposure category.

Data source: Walnut 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 Walnut Compares to Other Months

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

This table compares monthly weather conditions in Walnut, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	58 mm (2.3 inches)	82%	moderate
February Weather	-3°C (27°F)	62 mm (2.5 inches)	83%	moderate
March Weather	4°C (40°F)	94 mm (3.7 inches)	84%	high
April Weather	10°C (49°F)	114 mm (4.5 inches)	85%	very high
May Weather	17°C (62°F)	173 mm (6.8 inches)	79%	very high
June Weather	23°C (73°F)	146 mm (5.7 inches)	82%	very high
July Weather	24°C (76°F)	100 mm (3.9 inches)	80%	very high
August Weather	23°C (74°F)	68 mm (2.7 inches)	81%	very high
September Weather	20°C (69°F)	110 mm (4.3 inches)	80%	very high
October Weather	12°C (55°F)	127 mm (5.0 inches)	82%	high
November Weather	4°C (39°F)	55 mm (2.2 inches)	88%	moderate
December Weather	0°C (33°F)	49 mm (1.9 inches)	84%	low