Huachuca City, AZ frost dates
Last spring frostMar 16median date
First fall frostNov 21median date
Growing season250 daysfrost-free
Hardiness zone8bZone 8b
How Huachuca City compares
- In 8 years out of 10, the last spring frost in Huachuca City falls between February 19 and April 12, a 52-day window. The first fall frost falls between November 3 and December 7.
- The median last frost is 31 days earlier than the Arizona median of Apr 16.
- Its 250-day growing season is longer than 82% of the 193 Arizona places with a regular frost season (state median 197 days).
- The last frost is typical for zone 8b, where the median is Mar 16.
- The weather station records an average of 34 nights a year at or below 32°F.
- Nearby Tucson, AZ, 85 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) | February 19 |
| 50% (median) | March 16 |
| 10% (safe for tender plants) | April 12 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 3 |
| 50% (median) | November 21 |
| 90% (late) | December 7 |
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 Huachuca City, AZ
Huachuca City, AZ frost dates — last frost Mar 16, first frost Nov 21, zone 8b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Feb 16 to Mar 2
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 23 to Apr 6
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Sow outdoors: Feb 16 to Mar 23Plant for fall: Sep 26 to Oct 24
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 16 to Mar 2Sow outdoors: Feb 16 to Mar 2Plant for fall: Sep 12 to Oct 3
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 15 to Sep 5
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Plant for fall: Aug 15 to Sep 5
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 15 to Sep 5
Start indoors: Feb 2 to Feb 16Transplant outside: Apr 6 to Apr 20Sow outdoors: Apr 6 to Apr 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 23 to Apr 6
Sow outdoors: Feb 2 to Feb 23Plant for fall: Aug 29 to Sep 19
Sow outdoors: Feb 2 to Feb 23Plant for fall: Sep 26 to Oct 17
Sow outdoors: Feb 9 to Mar 23Plant for fall: Oct 10 to Oct 31
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 6Sow outdoors: Mar 23 to Apr 6Plant for fall: Sep 5 to Sep 19
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6Plant for fall: Sep 12 to Sep 26
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 13
Sow outdoors: Feb 23 to Mar 23Plant for fall: Aug 29 to Sep 12
Sow outdoors: Feb 23 to Mar 23Plant for fall: Sep 12 to Sep 26
Sow outdoors: Feb 23 to Mar 16
Sow outdoors: Mar 2 to Mar 30Plant for fall: Sep 12 to Sep 26
Sow outdoors: Mar 2 to Mar 23Plant for fall: Sep 26 to Oct 17
Sow outdoors: Mar 23 to Apr 13Plant for fall: Sep 5 to Sep 19
Sow outdoors: Mar 23 to Apr 6
Transplant outside: Mar 30 to Apr 20
Plant for fall: Nov 7 to Dec 12
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Huachuca City, AZ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 22 – Jan 5 | Feb 16 – Mar 2 | — | — |
| Peppers | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Eggplant | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Tomatoes | Jan 19 – Feb 2 | Mar 23 – Apr 6 | — | — |
| Lettuce | Jan 19 – Feb 2 | Feb 23 – Mar 9 | Feb 16 – Mar 23 | Sep 26 – Oct 24 |
| Kale | Jan 19 – Feb 2 | Feb 16 – Mar 2 | Feb 16 – Mar 2 | Sep 12 – Oct 3 |
| Broccoli | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 15 – Sep 5 |
| Cabbage | Jan 19 – Feb 2 | Feb 23 – Mar 9 | — | Aug 15 – Sep 5 |
| Cauliflower | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 15 – Sep 5 |
| Okra | Feb 2 – Feb 16 | Apr 6 – Apr 20 | Apr 6 – Apr 20 | — |
| Basil | Feb 2 – Feb 16 | Mar 23 – Apr 6 | — | — |
| Peas | — | — | Feb 2 – Feb 23 | Aug 29 – Sep 19 |
| Spinach | — | — | Feb 2 – Feb 23 | Sep 26 – Oct 17 |
| Radishes | — | — | Feb 9 – Mar 23 | Oct 10 – Oct 31 |
| Cucumbers | Feb 16 – Feb 23 | Mar 30 – Apr 6 | Mar 23 – Apr 6 | Sep 5 – Sep 19 |
| Zucchini & Summer Squash | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | Sep 12 – Sep 26 |
| Winter Squash & Pumpkins | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | — |
| Melons & Watermelon | Feb 16 – Feb 23 | Mar 30 – Apr 13 | — | — |
| Carrots | — | — | Feb 23 – Mar 23 | Aug 29 – Sep 12 |
| Beets | — | — | Feb 23 – Mar 23 | Sep 12 – Sep 26 |
| Potatoes | — | — | Feb 23 – Mar 16 | — |
| Swiss Chard | — | — | Mar 2 – Mar 30 | Sep 12 – Sep 26 |
| Cilantro | — | — | Mar 2 – Mar 23 | Sep 26 – Oct 17 |
| Green Beans | — | — | Mar 23 – Apr 13 | Sep 5 – Sep 19 |
| Sweet Corn | — | — | Mar 23 – Apr 6 | — |
| Sweet Potatoes | — | Mar 30 – Apr 20 | — | — |
| Garlic | — | — | — | Nov 7 – Dec 12 |
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 Ft Huachuca Pioneer Airfield, AZ weather station, 11 km away (elevation 4,767 ft (1,453 m)).
Frost dates near Huachuca City
- Fort Huachuca Apr 5 · Nov 9
- Sierra Vista Apr 5 · Nov 9
- Elgin Apr 18 · Nov 1
- Tombstone Mar 4 · Nov 29
- Sonoita Mar 28 · Nov 21
- Saint David Apr 12 · Nov 1
- Hereford Apr 7 · Nov 9
- Benson Apr 12 · Nov 1
- Patagonia Apr 23 · Oct 30
- Pomerene Apr 12 · Nov 1
Frequently asked questions
When is the last frost in Huachuca City, AZ?
The median last spring frost in Huachuca City, AZ is March 16. There is still about a 10% chance of frost after April 12, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Huachuca City, AZ?
The median first fall frost is November 21, with about a 10% chance of frost before November 3.
How long is the growing season in Huachuca City, AZ?
About 250 days between the median last spring frost and first fall frost.
What planting zone is Huachuca City, AZ?
Huachuca City, AZ is in USDA hardiness zone 8b.