Phoenix recorded 143 days at or above 100 degrees in 2024, seventy of them at 110 or above, and 122 and 37 the following year. That range matters to a glass job because minimum drive-away time is not a fixed number. Where an adhesive is sensitive to temperature and humidity, the shop has to read its own chart for the conditions in front of it, which means the right answer changes with the day you book.
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.
Heat is the variable that separates a Phoenix install from the same job somewhere milder, so most of these are about the adhesive rather than the glass.
Because it changes how long the adhesive needs. The National Weather Service office in Phoenix counted 143 days at or above 100 degrees in 2024, 70 of them at or above 110, and 122 and 37 the following year. Roughly a third to two fifths of the year sits above 100.
The interval before the urethane holding a new windshield has cured enough for the vehicle to be used. It is not a fixed number. Under ANSI/AGSC/AGRSS 005-2022, where an adhesive is sensitive to temperature and humidity, its drive-away chart has to carry those variables.
What the drive-away time is for your vehicle, with the adhesive they are using, in the conditions on the day. A shop that quotes one number for every job in every season is not reading the chart.
Because one year is not a climate. The two counts differ by 21 days above 100 and 33 days above 110, so the honest summary is a range rather than a single number.