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

River Island State Park Average Daily Temperature (Degrees Fahrenheit) & Monthly Precipitation (Inches)

Month	High	Low	Precipitation
	January	67° F		41° F	0.87"
February	73°	45°	0.70"
March	79°	49°	0.65"
April	87°	54°	0.17"
May	95°	63°	0.09"
June	105°	71°	0.02"
July	108°	78°	0.27"
August	107°	78°	0.61"
September	101°	71°	0.57"
October	90°	59°	0.32"
November	76°	47°	0.33"
December	67°	41°	0.57"

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.

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