Maricopa, AZ Frost Dates
The last spring frost in Maricopa usually comes around February 23 and the first fall frost around November 24.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | February 23 | November 24 |
| Hard freeze, 28°F | February 2 | December 6 |
Growing season: about 274 days.
Frequently asked questions
When is the last frost in Maricopa, AZ?
The median date of the last spring frost (32°F) is February 23. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past February 23 lowers the risk for tender plants.
When is the first frost in Maricopa?
The median date of the first fall frost (32°F) is November 24, and a hard freeze (28°F) usually follows around December 6.
How long is the growing season in Maricopa?
About 274 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00025270. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.