Phoenix, AZ recorded 143 days at or above 100°F in 2024. Seventy of them reached 110°F.
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Those 2024 figures come from the National Weather Service office in Phoenix. The following year the same office counted 122 days at or above 100°F and 37 at or above 110°F. Two years is a range rather than a number, and the range says roughly a third to two fifths of the year sits above 100°F.
That matters to a glass job because minimum drive-away time isn't fixed. Where an adhesive is sensitive to temperature and humidity, ANSI/AGSC/AGRSS 005-2022 requires its drive-away chart to carry those variables, so the shop reads the chart for the conditions in front of it. Ask what the number is for your vehicle on the day.