Mayer, AZ frost dates
Last spring frostApr 5median date
First fall frostNov 17median date
Growing season226 daysfrost-free
Hardiness zone8bZone 8b
How Mayer compares
- In 8 years out of 10, the last spring frost in Mayer falls between March 9 and April 24, a 46-day window. The first fall frost falls between October 28 and December 3.
- The median last frost is 11 days earlier than the Arizona median of Apr 16.
- Its 226-day growing season is longer than 72% of the 193 Arizona places with a regular frost season (state median 197 days).
- The last frost is 20 days later than the zone 8b median of Mar 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8b chart.
- The weather station records an average of 44 nights a year at or below 32°F.
- Nearby Peoria, AZ, 84 km away, gets only light, occasional frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 9 |
| 50% (median) | April 5 |
| 10% (safe for tender plants) | April 24 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 28 |
| 50% (median) | November 17 |
| 90% (late) | December 3 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Mayer, AZ
Mayer, AZ frost dates — last frost Apr 5, first frost Nov 17, zone 8b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 11 to Jan 25Transplant outside: Mar 8 to Mar 22
Start indoors: Jan 25 to Feb 8Transplant outside: Apr 19 to May 3
Start indoors: Jan 25 to Feb 8Transplant outside: Apr 19 to May 3
Start indoors: Feb 8 to Feb 22Transplant outside: Apr 12 to Apr 26
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 15 to Mar 29Sow outdoors: Mar 8 to Apr 12Plant for fall: Sep 22 to Oct 20
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 8 to Mar 22Sow outdoors: Mar 8 to Mar 22Plant for fall: Sep 8 to Sep 29
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 22 to Apr 5Plant for fall: Aug 11 to Sep 1
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 15 to Mar 29Plant for fall: Aug 11 to Sep 1
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 22 to Apr 5Plant for fall: Aug 11 to Sep 1
Start indoors: Feb 22 to Mar 8Transplant outside: Apr 26 to May 10Sow outdoors: Apr 26 to May 10
Start indoors: Feb 22 to Mar 8Transplant outside: Apr 12 to Apr 26
Sow outdoors: Feb 22 to Mar 15Plant for fall: Aug 25 to Sep 15
Sow outdoors: Feb 22 to Mar 15Plant for fall: Sep 22 to Oct 13
Sow outdoors: Mar 1 to Apr 12Plant for fall: Oct 6 to Oct 27
Start indoors: Mar 8 to Mar 15Transplant outside: Apr 19 to Apr 26Sow outdoors: Apr 12 to Apr 26Plant for fall: Sep 1 to Sep 15
Start indoors: Mar 8 to Mar 15Sow outdoors: Apr 12 to Apr 26Plant for fall: Sep 8 to Sep 22
Start indoors: Mar 8 to Mar 15Sow outdoors: Apr 12 to Apr 26
Start indoors: Mar 8 to Mar 15Transplant outside: Apr 19 to May 3
Sow outdoors: Mar 15 to Apr 12Plant for fall: Aug 25 to Sep 8
Sow outdoors: Mar 15 to Apr 12Plant for fall: Sep 8 to Sep 22
Sow outdoors: Mar 15 to Apr 5
Sow outdoors: Mar 22 to Apr 19Plant for fall: Sep 8 to Sep 22
Sow outdoors: Mar 22 to Apr 12Plant for fall: Sep 22 to Oct 13
Sow outdoors: Apr 12 to May 3Plant for fall: Sep 1 to Sep 15
Sow outdoors: Apr 12 to Apr 26
Transplant outside: Apr 19 to May 10
Plant for fall: Nov 3 to Dec 8
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Mayer, AZ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 11 – Jan 25 | Mar 8 – Mar 22 | — | — |
| Peppers | Jan 25 – Feb 8 | Apr 19 – May 3 | — | — |
| Eggplant | Jan 25 – Feb 8 | Apr 19 – May 3 | — | — |
| Tomatoes | Feb 8 – Feb 22 | Apr 12 – Apr 26 | — | — |
| Lettuce | Feb 8 – Feb 22 | Mar 15 – Mar 29 | Mar 8 – Apr 12 | Sep 22 – Oct 20 |
| Kale | Feb 8 – Feb 22 | Mar 8 – Mar 22 | Mar 8 – Mar 22 | Sep 8 – Sep 29 |
| Broccoli | Feb 8 – Feb 22 | Mar 22 – Apr 5 | — | Aug 11 – Sep 1 |
| Cabbage | Feb 8 – Feb 22 | Mar 15 – Mar 29 | — | Aug 11 – Sep 1 |
| Cauliflower | Feb 8 – Feb 22 | Mar 22 – Apr 5 | — | Aug 11 – Sep 1 |
| Okra | Feb 22 – Mar 8 | Apr 26 – May 10 | Apr 26 – May 10 | — |
| Basil | Feb 22 – Mar 8 | Apr 12 – Apr 26 | — | — |
| Peas | — | — | Feb 22 – Mar 15 | Aug 25 – Sep 15 |
| Spinach | — | — | Feb 22 – Mar 15 | Sep 22 – Oct 13 |
| Radishes | — | — | Mar 1 – Apr 12 | Oct 6 – Oct 27 |
| Cucumbers | Mar 8 – Mar 15 | Apr 19 – Apr 26 | Apr 12 – Apr 26 | Sep 1 – Sep 15 |
| Zucchini & Summer Squash | Mar 8 – Mar 15 | — | Apr 12 – Apr 26 | Sep 8 – Sep 22 |
| Winter Squash & Pumpkins | Mar 8 – Mar 15 | — | Apr 12 – Apr 26 | — |
| Melons & Watermelon | Mar 8 – Mar 15 | Apr 19 – May 3 | — | — |
| Carrots | — | — | Mar 15 – Apr 12 | Aug 25 – Sep 8 |
| Beets | — | — | Mar 15 – Apr 12 | Sep 8 – Sep 22 |
| Potatoes | — | — | Mar 15 – Apr 5 | — |
| Swiss Chard | — | — | Mar 22 – Apr 19 | Sep 8 – Sep 22 |
| Cilantro | — | — | Mar 22 – Apr 12 | Sep 22 – Oct 13 |
| Green Beans | — | — | Apr 12 – May 3 | Sep 1 – Sep 15 |
| Sweet Corn | — | — | Apr 12 – Apr 26 | — |
| Sweet Potatoes | — | Apr 19 – May 10 | — | — |
| Garlic | — | — | — | Nov 3 – Dec 8 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Cordes, AZ weather station, 7 km away (elevation 3,770 ft (1,149 m)).
Frost dates near Mayer
- Humboldt Apr 30 · Oct 20
- Dewey Apr 30 · Oct 20
- Crown King Apr 5 · Nov 17
- Black Canyon City Jan 15 · Dec 22
- Camp Verde Apr 16 · Oct 30
- Prescott Valley Apr 20 · Oct 27
- Prescott Apr 30 · Oct 20
- Cottonwood Mar 30 · Nov 10
- Jerome Mar 26 · Nov 25
- Rimrock Apr 16 · Oct 30
Frequently asked questions
When is the last frost in Mayer, AZ?
The median last spring frost in Mayer, AZ is April 5. There is still about a 10% chance of frost after April 24, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Mayer, AZ?
The median first fall frost is November 17, with about a 10% chance of frost before October 28.
How long is the growing season in Mayer, AZ?
About 226 days between the median last spring frost and first fall frost.
What planting zone is Mayer, AZ?
Mayer, AZ is in USDA hardiness zone 8b.