Wikieup, AZ frost dates
Last spring frostMar 19median date
First fall frostNov 23median date
Growing season249 daysfrost-free
Hardiness zone9bZone 9b
How Wikieup compares
- In 8 years out of 10, the last spring frost in Wikieup falls between February 23 and April 22, a 58-day window. The first fall frost falls between November 4 and December 7.
- The median last frost is 28 days earlier than the Arizona median of Apr 16.
- Its 249-day growing season is longer than 81% of the 193 Arizona places with a regular frost season (state median 197 days).
- The last frost is 27 days later than the zone 9b median of Feb 20. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9b chart.
- The weather station records an average of 45 nights a year at or below 32°F.
- Nearby Lake Havasu City, AZ, 66 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 23 |
| 50% (median) | March 19 |
| 10% (safe for tender plants) | April 22 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 4 |
| 50% (median) | November 23 |
| 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 Wikieup, AZ
Wikieup, AZ frost dates — last frost Mar 19, first frost Nov 23, zone 9b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 25 to Jan 8Start indoors: Dec 25 to Jan 8Transplant outside: Feb 19 to Mar 5
Start indoors: Jan 8 to Jan 22Transplant outside: Apr 2 to Apr 16
Start indoors: Jan 8 to Jan 22Transplant outside: Apr 2 to Apr 16
Start indoors: Jan 22 to Feb 5Transplant outside: Mar 26 to Apr 9
Start indoors: Jan 22 to Feb 5Transplant outside: Feb 26 to Mar 12Sow outdoors: Feb 19 to Mar 26Plant for fall: Sep 28 to Oct 26
Start indoors: Jan 22 to Feb 5Transplant outside: Feb 19 to Mar 5Sow outdoors: Feb 19 to Mar 5Plant for fall: Sep 14 to Oct 5
Start indoors: Jan 22 to Feb 5Transplant outside: Mar 5 to Mar 19Plant for fall: Aug 17 to Sep 7
Start indoors: Jan 22 to Feb 5Transplant outside: Feb 26 to Mar 12Plant for fall: Aug 17 to Sep 7
Start indoors: Jan 22 to Feb 5Transplant outside: Mar 5 to Mar 19Plant for fall: Aug 17 to Sep 7
Start indoors: Feb 5 to Feb 19Transplant outside: Apr 9 to Apr 23Sow outdoors: Apr 9 to Apr 23
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 26 to Apr 9
Sow outdoors: Feb 5 to Feb 26Plant for fall: Aug 31 to Sep 21
Sow outdoors: Feb 5 to Feb 26Plant for fall: Sep 28 to Oct 19
Sow outdoors: Feb 12 to Mar 26Plant for fall: Oct 12 to Nov 2
Start indoors: Feb 19 to Feb 26Transplant outside: Apr 2 to Apr 9Sow outdoors: Mar 26 to Apr 9Plant for fall: Sep 7 to Sep 21
Start indoors: Feb 19 to Feb 26Sow outdoors: Mar 26 to Apr 9Plant for fall: Sep 14 to Sep 28
Start indoors: Feb 19 to Feb 26Sow outdoors: Mar 26 to Apr 9
Start indoors: Feb 19 to Feb 26Transplant outside: Apr 2 to Apr 16
Sow outdoors: Feb 26 to Mar 26Plant for fall: Aug 31 to Sep 14
Sow outdoors: Feb 26 to Mar 26Plant for fall: Sep 14 to Sep 28
Sow outdoors: Feb 26 to Mar 19
Sow outdoors: Mar 5 to Apr 2Plant for fall: Sep 14 to Sep 28
Sow outdoors: Mar 5 to Mar 26Plant for fall: Sep 28 to Oct 19
Sow outdoors: Mar 26 to Apr 16Plant for fall: Sep 7 to Sep 21
Sow outdoors: Mar 26 to Apr 9
Transplant outside: Apr 2 to Apr 23
Plant for fall: Nov 9 to Dec 14
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Wikieup, AZ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 25 – Jan 8 | Feb 19 – Mar 5 | — | — |
| Peppers | Jan 8 – Jan 22 | Apr 2 – Apr 16 | — | — |
| Eggplant | Jan 8 – Jan 22 | Apr 2 – Apr 16 | — | — |
| Tomatoes | Jan 22 – Feb 5 | Mar 26 – Apr 9 | — | — |
| Lettuce | Jan 22 – Feb 5 | Feb 26 – Mar 12 | Feb 19 – Mar 26 | Sep 28 – Oct 26 |
| Kale | Jan 22 – Feb 5 | Feb 19 – Mar 5 | Feb 19 – Mar 5 | Sep 14 – Oct 5 |
| Broccoli | Jan 22 – Feb 5 | Mar 5 – Mar 19 | — | Aug 17 – Sep 7 |
| Cabbage | Jan 22 – Feb 5 | Feb 26 – Mar 12 | — | Aug 17 – Sep 7 |
| Cauliflower | Jan 22 – Feb 5 | Mar 5 – Mar 19 | — | Aug 17 – Sep 7 |
| Okra | Feb 5 – Feb 19 | Apr 9 – Apr 23 | Apr 9 – Apr 23 | — |
| Basil | Feb 5 – Feb 19 | Mar 26 – Apr 9 | — | — |
| Peas | — | — | Feb 5 – Feb 26 | Aug 31 – Sep 21 |
| Spinach | — | — | Feb 5 – Feb 26 | Sep 28 – Oct 19 |
| Radishes | — | — | Feb 12 – Mar 26 | Oct 12 – Nov 2 |
| Cucumbers | Feb 19 – Feb 26 | Apr 2 – Apr 9 | Mar 26 – Apr 9 | Sep 7 – Sep 21 |
| Zucchini & Summer Squash | Feb 19 – Feb 26 | — | Mar 26 – Apr 9 | Sep 14 – Sep 28 |
| Winter Squash & Pumpkins | Feb 19 – Feb 26 | — | Mar 26 – Apr 9 | — |
| Melons & Watermelon | Feb 19 – Feb 26 | Apr 2 – Apr 16 | — | — |
| Carrots | — | — | Feb 26 – Mar 26 | Aug 31 – Sep 14 |
| Beets | — | — | Feb 26 – Mar 26 | Sep 14 – Sep 28 |
| Potatoes | — | — | Feb 26 – Mar 19 | — |
| Swiss Chard | — | — | Mar 5 – Apr 2 | Sep 14 – Sep 28 |
| Cilantro | — | — | Mar 5 – Mar 26 | Sep 28 – Oct 19 |
| Green Beans | — | — | Mar 26 – Apr 16 | Sep 7 – Sep 21 |
| Sweet Corn | — | — | Mar 26 – Apr 9 | — |
| Sweet Potatoes | — | Apr 2 – Apr 23 | — | — |
| Garlic | — | — | — | Nov 9 – Dec 14 |
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 Wikieup, AZ weather station, about 1 km away (elevation 2,011 ft (613 m)).
Frost dates near Wikieup
- Bagdad Apr 7 · Nov 12
- Kingman (Mohave) Apr 2 · Nov 11
- Yucca Feb 18 · Dec 2
- Prescott (Yavapai) May 24 · Oct 7
- Lake Havasu City Jan 5 · Dec 29
- Kirkland Apr 7 · Nov 12
- Kingman Apr 2 · Nov 11
- Hackberry Apr 2 · Nov 11
- Wenden Mar 4 · Nov 23
- Valentine May 17 · Oct 10
Frequently asked questions
When is the last frost in Wikieup, AZ?
The median last spring frost in Wikieup, AZ is March 19. There is still about a 10% chance of frost after April 22, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Wikieup, AZ?
The median first fall frost is November 23, with about a 10% chance of frost before November 4.
How long is the growing season in Wikieup, AZ?
About 249 days between the median last spring frost and first fall frost.
What planting zone is Wikieup, AZ?
Wikieup, AZ is in USDA hardiness zone 9b.