Glendale, AZ Frost Dates
The last spring frost in Glendale usually comes around January 20 and the first fall frost around December 15.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | January 20 | December 15 |
| Hard freeze, 28°F | January 3 | December 29 |
Growing season: about 331 days.
Frequently asked questions
When is the last frost in Glendale, AZ?
The median date of the last spring frost (32°F) is January 20. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past January 20 lowers the risk for tender plants.
When is the first frost in Glendale?
The median date of the first fall frost (32°F) is December 15, and a hard freeze (28°F) usually follows around December 29.
How long is the growing season in Glendale?
About 331 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00029634. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.