A practical, sourced reference for property owners, writers, researchers and anyone covering Arizona roofs, housing or severe weather.
Last updated October 22, 2026
Arizona roofing decisions happen in a setting shaped by high heat, seasonal storms and a large, growing housing base. This page brings together public figures that help put that context in plain view.
Every statistic links to the original publisher. Figures are intentionally kept in their source context, because a Phoenix climate normal is not a statewide forecast, and a construction permit is not a roof replacement.
3,299,651
The Census Bureau estimates that Arizona had 3,299,651 housing units as of July 1, 2024. That is the statewide base of homes and other dwellings that require ongoing exterior upkeep.
U.S. Census Bureau QuickFacts ↗Source date: July 1, 202467.0%
Arizona's owner-occupied housing rate was 67.0% for 2019 to 2023. This is a Census estimate of occupied homes lived in by their owners, not a measure of roof condition or repair demand.
U.S. Census Bureau QuickFacts ↗Source date: 2019–202359,616
The Census Bureau reports 59,616 building permits for Arizona in 2024. Permits reflect reported construction activity and should not be read as a count of roofing projects.
U.S. Census Bureau QuickFacts ↗Source date: 202475.6°F
Phoenix's 1991 to 2020 average annual temperature was 75.6°F, according to National Weather Service climate normals. Climate normals are 30-year averages, not a forecast for any one year.
National Weather Service Phoenix ↗Source date: 1991–20207.22 in.
Phoenix's 1991 to 2020 average annual rainfall was 7.22 inches. Rainfall varies greatly by location and year, so a statewide roof decision should never rely on this city figure alone.
National Weather Service Phoenix ↗Source date: 1991–202021 days
Phoenix averages 21 days a year at 110°F or higher under the 1991 to 2020 climate normal. The same source records 70 such days in 2024, the highest count in its period of record.
National Weather Service Phoenix ↗Source date: 1991–2020 normal; 2024 recordJun. 15–Sep. 30
Arizona National Weather Service offices define the monsoon season as June 15 through September 30, a period associated with heightened risk of thunderstorms, wind, lightning and flash flooding.
National Weather Service Phoenix ↗Source date: Seasonal definition40–50%
The National Weather Service says much of northern Arizona receives 40% to 50% of annual precipitation during monsoon season. It is a regional figure and does not describe Phoenix or every Arizona community.
National Weather Service Flagstaff ↗Source date: Climate referenceThis reference uses publicly available data from the U.S. Census Bureau and National Weather Service offices. Climate figures are reported as the source defines them, including the 1991 to 2020 normal period. Housing figures use the Census Bureau's stated year or estimate period.
We review this page about monthly and sooner when a key source releases an updated figure. Last source check: October 22, 2026.
Suggested citation: Arizona Roofing Services, Inc. “Arizona Roofing, Heat & Monsoon Statistics.” Updated October 22, 2026. https://arizonaroofing.com/arizona-roofing-statistics
For a specific number, link directly to its card above and cite the original public source too.
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