What is the hottest month in Duncan, AZ?

June is the warmest month, with a normal high of 98°F at Duncan.

What is the coldest month in Duncan, AZ?

December is the coldest month, with a normal low of 25°F.

What is the wettest month in Duncan, AZ?

August has the most precipitation on average, about 2.18 inches.

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Checked Oct 25, 2026

Duncan, AZ Climate

1991 to 2020 normals at Duncan, 2 mi from the center of Duncan, elevation 3660 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	60°	25°	0.94 in	--
February	65°	29°	0.84 in	--
March	73°	33°	0.50 in	--
April	81°	39°	0.17 in	--
May	89°	47°	0.29 in	--
June	98°	57°	0.25 in	--
July	98°	66°	1.68 in	--
August	96°	65°	2.18 in	--
September	91°	56°	1.21 in	--
October	81°	43°	0.71 in	--
November	69°	31°	0.64 in	--
December	59°	25°	1.00 in	--
Year	80°		10.41 in	--

Frequently asked questions

What is the hottest month in Duncan, AZ?: June is the warmest month, with a normal high of 98°F at Duncan.
What is the coldest month in Duncan, AZ?: December is the coldest month, with a normal low of 25°F.
What is the wettest month in Duncan, AZ?: August has the most precipitation on average, about 2.18 inches.

Today

Duncan, AZ forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information · Official site

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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