October Weather in Phoenix Arizona, United State

By: Seat Earnings

Daily low temperatures decrease by 12°F, from 72°F to 60°F, rarely falling below 52°F or exceeding 78°F. For reference, on July 5, the hottest day of the year, temperatures in Phoenix typically range from 84°F to 107°F, while on December 28, the coldest day of the year, they range from 45°F to 65°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 

The month of October in Phoenix experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 16% to 24%. The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 84% of the time.


A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Phoenix, the chance of a wet day over the course of October is essentially constant, remaining around 7% throughout. 


The average sliding 31-day rainfall during October in Phoenix is essentially constant, remaining about 0.5 inches throughout, and rarely exceeding 1.5 inches. The lowest average 31-day accumulation is 0.5 inches on October 13.


The chance that a given day will be muggy in Phoenix is gradually decreasing during October, falling from 3% to 0% over the course of the month. For reference, on August 14, the muggiest day of the year, there are muggy conditions 24% of the time, while on November 4, the least muggy day of the year, there are muggy conditions 0% of the time.


The average hourly wind speed in Phoenix is essentially constant during October, remaining within 0.1 miles per hour of 6.6 miles per hour throughout. 


Temperatures in Phoenix are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.  

Growing Season

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