Frost dates in Pinal County, Arizona
The average last spring frost in Pinal County falls Jan 18 to Apr 2 and the average first fall frost Nov 11 to Dec 28, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 9a to 9b. Places: Apache Junction, Casa Blanca, Casa Grande, Coolidge, Dudleyville, Eloy. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 85118 | Gold Canyon | Feb 11 | Dec 10 | 9b |
| 85119 | Apache Junction | Feb 11 | Dec 10 | 9b |
| 85120 | Apache Junction | Feb 1 | Dec 10 | 9b |
| 85121 | Casa Blanca | Feb 23 | Nov 24 | 9b |
| 85122 | Casa Grande | Feb 5 | Dec 6 | 9a |
| 85123 | Eloy | Feb 28 | Nov 21 | 9a |
| 85128 | Coolidge | Feb 17 | Nov 29 | 9a |
| 85131 | Eloy | Feb 28 | Nov 21 | 9a |
| 85132 | Florence | Jan 30 | Dec 12 | 9b |
| 85137 | Kearny | Jan 18 | Dec 28 | 9b |
| 85138 | Maricopa | Feb 23 | Nov 24 | 9a |
| 85139 | Goodyear | Feb 23 | Nov 24 | 9a |
| 85140 | San Tan Valley | Feb 1 | Dec 11 | 9b |
| 85141 | Picacho | Feb 6 | Dec 9 | 9a |
| 85142 | Queen Creek | Feb 1 | Dec 11 | 9b |
| 85143 | San Tan Valley | Feb 1 | Dec 11 | 9b |
| 85145 | Red Rock | Feb 6 | Dec 9 | 9a |
| 85147 | Sacaton | Feb 1 | Dec 11 | 9a |
| 85172 | Stanfield | Feb 5 | Dec 6 | 9a |
| 85173 | Superior | Jan 18 | Dec 28 | 9b |
| 85191 | Jan 30 | Dec 12 | 9a | |
| 85192 | Dudleyville | Mar 13 | Nov 19 | 9a |
| 85193 | Casa Grande | Feb 5 | Dec 6 | 9a |
| 85194 | Casa Grande | Feb 5 | Dec 6 | 9a |
| 85618 | Mar 29 | Nov 13 | 9a | |
| 85623 | Mammoth | Mar 29 | Nov 13 | 9a |
| 85631 | San Manuel | Feb 4 | Dec 8 | 9a |
| 85658 | Marana | Apr 2 | Nov 11 | 9b |
| 85739 | Saddlebrooke | Apr 2 | Nov 11 | 9a |
Nearby counties
Maricopa County Pima County Gila County Graham County Santa Cruz County Cochise County
All Arizona counties · Download Arizona frost dates (CSV)
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