Annual Weather

By the early twentieth century, the town of Oracle had acquired a reputation as a place to escape the grueling summers of Tucson. The summer months average highs in the upper nineties and lows in the mid to high sixties and the monsoon average for rainfall is six to eight inches (mid-July through September).

By September, our highs are in the mid-eighties and becoming very enjoyable. September, October, and November are a few of the nicest months in Oracle, as well as March, April and May, although be forewarned: wind gusts in the spring and fall can hit up to 50 miles per hour!

Winters can be quite chilly in Oracle, with a fifty year average of snowfall being 10.9”, however, this is not the norm. Winter is also our rainiest season, usually providing more precipitation than the summer monsoons. Average winter high temperatures are in the low sixties with lows in the mid-thirties.

Below is a listing of average daily temperatures and monthly precipitation:

Oracle State Park 
Average Daily Temperature (Degrees Fahrenheit)
& Monthly Precipitation (Inches)
Month Temperature Precipitation
High Low
January 56° F 35° F 2.48"
February 60° 37° 2.60"
March 65° 40° 2.51"
April 72° 45° 0.91"
May 82° 54° 0.62"
June 92° 64° 0.40"
July 92° 67° 3.26"
August 89° 66° 4.09"
September 86° 62° 1.96"
October 76° 51° 2.01"
November 64° 41° 1.83"
December 56° 35° 2.25"

Note: Weather data is provided as a general guide only. Arizona State Parks assumes no responsibility for any loss resulting from the use of this information.