Sierra Vista
Arizona, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Sierra Vista, AZ

The vast Sierra Vista region of Arizona, and a view of a local church and distant mountain ranges
The vast Sierra Vista region of Arizona, and a view of a local church and distant mountain ranges
October, like September, in Sierra Vista, Arizona, is a moderately hot autumn month, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 51.1°F (10.6°C).

Temperature

In Sierra Vista, the average high-temperature in October marginally drops, from a hot 86.7°F (30.4°C) in September, to a moderately hot 78.8°F (26°C). The average low-temperature, in October, is 51.1°F (10.6°C).

Rainfall

In Sierra Vista, in October, during 3 rainfall days, 0.8" (21mm) of precipitation is typically accumulated. In Sierra Vista, during the entire year, the rain falls for 52 days and collects up to 13.9" (352mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in Sierra Vista is 11.4h.

Sunshine

In October, the average sunshine in Sierra Vista is 9h.

UV index

In October, the average daily maximum UV index in Sierra Vista is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in October in Sierra Vista?

In October, in Sierra Vista, Arizona, the average high-temperature is 78.8°F (26°C), and the average low-temperature is 51.1°F (10.6°C).

How many days does it rain in October in Sierra Vista?

In Sierra Vista, Arizona, in October, it is raining for 3 days, with typically 0.8" (21mm) of accumulated precipitation.

When it does not snow in Sierra Vista?

In Sierra Vista, Arizona, snow does not fall in April through November.

What is the average length of the day in October in Sierra Vista?

In October, the average length of the day is 11.4h.

How long on average sun shines in October in Sierra Vista?

In Sierra Vista, the average sunshine in October is 9h.

How high is the UV index in October in Sierra Vista?

The average daily maximum UV index in October is 7. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.
Average temperature in October - Sierra Vista, AZ
  • Average high temperature in October: 78.8°F

The warmest month (with the highest average high temperature) is June (92.9°F).
The month with the lowest average high temperature is January (61.2°F).

  • Average low temperature in October: 51°F

The month with the highest average low temperature is July (66.3°F).
The coldest month (with the lowest average low temperature) is December (33.9°F).

Average rainfall in October - Sierra Vista, AZ
  • Average rainfall in October: 0.8"

The wettest month (with the highest rainfall) is July (3.8").
The driest month (with the lowest rainfall) is May (0.1").

Average rainfall days in October - Sierra Vista, AZ
  • Average rainfall days in October: 3 days

The month with the highest number of rainy days is August (12 days).
The month with the lowest number of rainy days is May (1 days).

Average snowfall in October - Sierra Vista, AZ
  • Average snowfall in October: 0"

The month with the highest snowfall is January (0.3").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average daylight in October / Average sunshine in October - Sierra Vista, AZ
  • Average daylight in October: 11.4h

The month with the longest days is June (Average daylight: 14.2h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in October: 9h

Months with most sunshine are May and June (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 7h).

Average UV index in October - Sierra Vista, AZ
  • Average UV index in October: 7

The month with the highest UV index is July (UV index 12).
The month with the lowest UV index is December (UV index 3).