October Weather in Sierra Vista, United States

Last updated: June 24, 2025

In October, the average temperature in Sierra Vista, United States is a pleasant 18°C (65°F). However, be prepared for temperature swings, as it can drop to a chilly -1°C (30°F) or rise to a warm 33°C (92°F). Expect some light rain, with 18 mm (0.7 in) of precipitation over 1 day, and experience an average humidity level of 66% for a comfortable atmosphere.

October Temperature in Sierra Vista

In October in Sierra Vista, the weather can be quite varied, offering a pleasant average temperature of 18°C (65°F) ideal for outdoor activities, but travelers should be prepared for maximum highs of 33°C (92°F) and potential chilly lows of -1°C (30°F), making it essential to pack accordingly.

October Weather in Sierra Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Sierra Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sierra Vista, October typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (30°F).

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

October Precipitation in Sierra Vista

In Sierra Vista in October, the precipitation amount is 18 mm (0.7 in) over the course of 1 day.

October Precipitation Trends in Sierra Vista

The chart displays monthly precipitation patterns in Sierra Vista, 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 Sierra Vista, October typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 1 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 Sierra Vista

In Sierra Vista in October humidity is 66%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, perfect for leisurely strolls but requiring light, breathable clothing to fully enjoy the experience.

October Average Humidity in Sierra Vista

This chart illustrates the average monthly humidity levels in Sierra Vista, 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 Sierra Vista is approximately 66%, 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 Sierra Vista

In Sierra Vista in October, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sierra Vista.

Maximum UV Index Levels in Sierra Vista for October

The chart shows the monthly maximum UV Index (UVI) for Sierra Vista 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 Sierra Vista typically reaches 9, which falls under the very high exposure category.

Data source: Sierra Vista 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 Sierra Vista Compares to Other Months

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

This table compares monthly weather conditions in Sierra Vista, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	20 mm (0.8 inches)	74%	moderate
February Weather	9°C (49°F)	25 mm (1.0 inches)	71%	high
March Weather	13°C (55°F)	17 mm (0.7 inches)	60%	very high
April Weather	17°C (64°F)	4 mm (0.2 inches)	43%	extreme
May Weather	21°C (71°F)	3 mm (0.1 inches)	32%	extreme
June Weather	27°C (81°F)	8 mm (0.3 inches)	28%	extreme
July Weather	26°C (79°F)	89 mm (3.5 inches)	38%	extreme
August Weather	25°C (78°F)	71 mm (2.8 inches)	60%	extreme
September Weather	23°C (74°F)	36 mm (1.4 inches)	72%	extreme
October Weather	18°C (65°F)	18 mm (0.7 inches)	66%	very high
November Weather	14°C (57°F)	27 mm (1.1 inches)	74%	high
December Weather	9°C (48°F)	22 mm (0.9 inches)	81%	moderate