Frost dates for 85207 — Mesa, AZ
Frost is light and occasional here — typically a few cold nights around midwinter (about 11 a year). Cover tender plants when frost is forecast.
How Mesa compares
- In a typical year, frost nights in Mesa fall between December 10 and February 1. In 1 year in 10 the first frost comes as early as November 22, or the last frost as late as February 28.
- Compared with Phoenix, AZ, 41 km away, the last frost here is 27 days later than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 1 |
| 50% (median) | February 1 |
| 10% (safe for tender plants) | February 28 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 22 |
| 50% (median) | December 10 |
| 90% (late) | January 1 |
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 Mesa, AZ
Frost dates for 85207 — Mesa, AZ — last frost Feb 1, first frost Dec 10, zone 9b. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Mesa, AZ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 9 – Nov 23 | Jan 4 – Jan 18 | — | — |
| Peppers | Nov 23 – Dec 7 | Feb 15 – Mar 1 | — | — |
| Eggplant | Nov 23 – Dec 7 | Feb 15 – Mar 1 | — | — |
| Tomatoes | Dec 7 – Dec 21 | Feb 8 – Feb 22 | — | — |
| Lettuce | Dec 7 – Dec 21 | Jan 11 – Jan 25 | Jan 4 – Feb 8 | Oct 15 – Nov 12 |
| Kale | Dec 7 – Dec 21 | Jan 4 – Jan 18 | Jan 4 – Jan 18 | Oct 1 – Oct 22 |
| Broccoli | Dec 7 – Dec 21 | Jan 18 – Feb 1 | — | Sep 3 – Sep 24 |
| Cabbage | Dec 7 – Dec 21 | Jan 11 – Jan 25 | — | Sep 3 – Sep 24 |
| Cauliflower | Dec 7 – Dec 21 | Jan 18 – Feb 1 | — | Sep 3 – Sep 24 |
| Okra | Dec 21 – Jan 4 | Feb 22 – Mar 8 | Feb 22 – Mar 8 | — |
| Basil | Dec 21 – Jan 4 | Feb 8 – Feb 22 | — | — |
| Peas | — | — | Dec 21 – Jan 11 | Sep 17 – Oct 8 |
| Spinach | — | — | Dec 21 – Jan 11 | Oct 15 – Nov 5 |
| Radishes | — | — | Dec 28 – Feb 8 | Oct 29 – Nov 19 |
| Cucumbers | Jan 4 – Jan 11 | Feb 15 – Feb 22 | Feb 8 – Feb 22 | Sep 24 – Oct 8 |
| Zucchini & Summer Squash | Jan 4 – Jan 11 | — | Feb 8 – Feb 22 | Oct 1 – Oct 15 |
| Winter Squash & Pumpkins | Jan 4 – Jan 11 | — | Feb 8 – Feb 22 | — |
| Melons & Watermelon | Jan 4 – Jan 11 | Feb 15 – Mar 1 | — | — |
| Carrots | — | — | Jan 11 – Feb 8 | Sep 17 – Oct 1 |
| Beets | — | — | Jan 11 – Feb 8 | Oct 1 – Oct 15 |
| Potatoes | — | — | Jan 11 – Feb 1 | — |
| Swiss Chard | — | — | Jan 18 – Feb 15 | Oct 1 – Oct 15 |
| Cilantro | — | — | Jan 18 – Feb 8 | Oct 15 – Nov 5 |
| Green Beans | — | — | Feb 8 – Mar 1 | Sep 24 – Oct 8 |
| Sweet Corn | — | — | Feb 8 – Feb 22 | — |
| Sweet Potatoes | — | Feb 15 – Mar 8 | — | — |
| Garlic | — | — | — | Nov 26 – Dec 31 |
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 E Mesa, AZ weather station, about 1 km away (elevation 1,519 ft (463 m)).
ZIP codes in Mesa: 85201 85202 85203 85204 85205 85206 85207 85208 85209 85210 85211 85212 85213 85214 85215 85216 85274 85275 85277
Frost dates near Mesa
- Higley Feb 1 · Dec 11
- Apache Junction Feb 11 · Dec 10
- Gilbert Feb 1 · Dec 11
- Fort Mcdowell Jan 6 · Dec 28
- Queen Creek Feb 1 · Dec 11
- Fountain Hills Jan 6 · Dec 28
- Chandler Feb 13 · Dec 5
- Chandler Heights Feb 1 · Dec 11
Frequently asked questions
When is the last frost in Mesa, AZ?
The median last spring frost in Mesa, AZ is February 1. There is still about a 10% chance of frost after February 28, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Mesa, AZ?
The median first fall frost is December 10, with about a 10% chance of frost before November 22.
How long is the growing season in Mesa, AZ?
About 312 days between the median last spring frost and first fall frost.
What planting zone is Mesa, AZ?
Mesa, AZ is in USDA hardiness zone 9b.