Last frost dates in Arizona

Typical last frost
January 20

That is the date for the typical Arizona resident, weighted by city population. Across the state the average last frost runs from January 4 to June 4, so look up your own town below.

Earliest city
Jan 4
Latest city
Jun 4
Typical first frost
Dec 15
Cities
30
This week in Arizona

No frost in the forecast for the next 7 nights

National Weather Service forecast, updated Oct 22, 11:10 UTC

Jan 1Feb 1Mar 1Apr 1May 1Jun 1Jan 15Feb 15Mar 15Apr 15May 15NSPhoenix: Jan 8PhoenixTucson: Feb 5TucsonGilbert: Feb 1GilbertChandler: Feb 13Glendale: Jan 20Scottsdale: Jan 27ScottsdaleTempe: Feb 13Goodyear: Jan 14San Tan Valley: Feb 1Avondale: Jan 14Queen Creek: Feb 1Maricopa: Feb 23Flagstaff: Jun 4Casas Adobes: Feb 26Casa Grande: Feb 5Lake Havasu City: Jan 5Prescott Valley: Apr 30Catalina Foothills: Feb 20Prescott: Apr 30Sierra Vista: Apr 5Bullhead City: Jan 4Sun City: Jan 20Kingman: Apr 2El Mirage: Jan 20Fortuna Foothills: Jan 4Drexel Heights: Feb 5Florence: Jan 30Rio Rico: Apr 16
Each dot is a city: further right means a later last frost, higher up means further north. Bigger dots are bigger cities.

Frost dates by city

CityLast frostSafe afterFirst frostSeason
PhoenixJan 8Feb 12Dec 25354 days
TucsonFeb 5Mar 2Dec 9307 days
GilbertFeb 1Feb 27Dec 11315 days
ChandlerFeb 13Mar 9Dec 5298 days
GlendaleJan 20Feb 18Dec 15331 days
ScottsdaleJan 27Mar 5Dec 21330 days
TempeFeb 13Mar 9Dec 5298 days
GoodyearJan 14Feb 12Dec 22343 days
San Tan ValleyFeb 1Feb 27Dec 11315 days
YumaNo freeze most years
AvondaleJan 14Feb 12Dec 22343 days
Queen CreekFeb 1Feb 27Dec 11315 days
MaricopaFeb 23Mar 15Nov 24274 days
FlagstaffJun 4Jun 19Sep 28115 days
Casas AdobesFeb 26Mar 18Dec 4279 days
Casa GrandeFeb 5Feb 28Dec 6305 days
Lake Havasu CityJan 5Feb 3Dec 29365 days
Prescott ValleyApr 30May 15Oct 20172 days
Catalina FoothillsFeb 20Mar 11Nov 27280 days
PrescottApr 30May 15Oct 20172 days
Sierra VistaApr 5Apr 21Nov 9216 days
Bullhead CityJan 4Feb 5Dec 23356 days
San LuisNo freeze most years
Sun CityJan 20Feb 18Dec 15331 days
KingmanApr 2Apr 21Nov 11220 days
El MirageJan 20Feb 18Dec 15331 days
Fortuna FoothillsJan 4Feb 9Dec 25361 days
Drexel HeightsFeb 5Mar 2Dec 9307 days
FlorenceJan 30Feb 24Dec 12319 days
Rio RicoApr 16May 4Nov 2199 days

When to plant in Arizona

Questions

When is the last frost in Arizona?

It depends on where you are. Across the 28 cities we track, the average last frost runs from January 4 to June 4. In Phoenix, the largest, it is January 8.

When is the first frost in Arizona?

For a typical resident, around December 15. Higher and more northern towns get it earlier.