October Weather in Downey, United States

Last updated: June 24, 2025

In October, the average temperature in Downey, United States hovers around 6°C (44°F). However, be prepared for a range; temperatures can dip as low as -19°C (-1°F) or soar to a pleasant 25°C (76°F). Expect 45 mm (1.8 in) of precipitation spread over 8 days, contributing to the area's relatively high average humidity of 69%.

October Temperature in Downey

In October in Downey, the average temperature is 6°C (44°F). The maximum can reach 25°C (76°F), while the minimum can be as low as -19°C (-1°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates October temperature patterns in Downey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Downey, October typically has an average temperature of 6°C (44°F), with highs reaching up to 25°C (76°F) and lows dropping to around -19°C (-1°F).

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

October Precipitation in Downey

In Downey in October, the precipitation amount is 45 mm (1.8 in) over the course of 8 days.

October Precipitation Trends in Downey

The chart displays monthly precipitation patterns in Downey, 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 Downey, October typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 8 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 Downey

In Downey in October humidity is 69%. With an average temperature of 6°C (44°F), this humidity feels like a brisk chill enveloping you, making travel invigorating yet challenging as the dampness in the air can penetrate even the warmest of clothing, leaving you craving a cozy indoor retreat.

October Average Humidity in Downey

This chart illustrates the average monthly humidity levels in Downey, 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 Downey is approximately 69%, 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 Downey

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

Maximum UV Index Levels in Downey for October

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

Data source: Downey 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 Downey Compares to Other Months

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

This table compares monthly weather conditions in Downey, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	59 mm (2.3 inches)	95%	moderate
February Weather	-4°C (25°F)	78 mm (3.1 inches)	95%	moderate
March Weather	1°C (33°F)	50 mm (2.0 inches)	90%	very high
April Weather	5°C (41°F)	69 mm (2.7 inches)	81%	very high
May Weather	11°C (51°F)	60 mm (2.4 inches)	71%	very high
June Weather	17°C (63°F)	29 mm (1.1 inches)	64%	extreme
July Weather	22°C (72°F)	14 mm (0.6 inches)	59%	extreme
August Weather	21°C (70°F)	22 mm (0.9 inches)	49%	very high
September Weather	15°C (60°F)	35 mm (1.4 inches)	52%	very high
October Weather	6°C (44°F)	45 mm (1.8 inches)	69%	high
November Weather	1°C (33°F)	46 mm (1.8 inches)	86%	moderate
December Weather	-5°C (23°F)	54 mm (2.1 inches)	91%	moderate