Marble Canyon, AZ frost dates
Last spring frostMar 5median date
First fall frostNov 19median date
Growing season259 daysfrost-free
Hardiness zone7bZone 7b
How Marble Canyon compares
- In 8 years out of 10, the last spring frost in Marble Canyon falls between February 18 and March 26, a 36-day window. The first fall frost falls between November 4 and December 1.
- The median last frost is 42 days earlier than the Arizona median of Apr 16.
- Its 259-day growing season is longer than 88% of the 193 Arizona places with a regular frost season (state median 197 days).
- The last frost is 31 days earlier than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 69 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 18 |
| 50% (median) | March 5 |
| 10% (safe for tender plants) | March 26 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 4 |
| 50% (median) | November 19 |
| 90% (late) | December 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 Marble Canyon, AZ
Marble Canyon, AZ frost dates — last frost Mar 5, first frost Nov 19, zone 7b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 11 to Dec 25Transplant outside: Feb 5 to Feb 19
Start indoors: Dec 25 to Jan 8Start indoors: Dec 25 to Jan 8Transplant outside: Mar 19 to Apr 2
Start indoors: Dec 25 to Jan 8Start indoors: Dec 25 to Jan 8Transplant outside: Mar 19 to Apr 2
Start indoors: Jan 8 to Jan 22Transplant outside: Mar 12 to Mar 26
Start indoors: Jan 8 to Jan 22Transplant outside: Feb 12 to Feb 26Sow outdoors: Feb 5 to Mar 12Plant for fall: Sep 24 to Oct 22
Start indoors: Jan 8 to Jan 22Transplant outside: Feb 5 to Feb 19Sow outdoors: Feb 5 to Feb 19Plant for fall: Sep 10 to Oct 1
Start indoors: Jan 8 to Jan 22Transplant outside: Feb 19 to Mar 5Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 8 to Jan 22Transplant outside: Feb 12 to Feb 26Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 8 to Jan 22Transplant outside: Feb 19 to Mar 5Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 22 to Feb 5Transplant outside: Mar 26 to Apr 9Sow outdoors: Mar 26 to Apr 9
Start indoors: Jan 22 to Feb 5Transplant outside: Mar 12 to Mar 26
Sow outdoors: Jan 22 to Feb 12Plant for fall: Aug 27 to Sep 17
Sow outdoors: Jan 22 to Feb 12Plant for fall: Sep 24 to Oct 15
Sow outdoors: Jan 29 to Mar 12Plant for fall: Oct 8 to Oct 29
Start indoors: Feb 5 to Feb 12Transplant outside: Mar 19 to Mar 26Sow outdoors: Mar 12 to Mar 26Plant for fall: Sep 3 to Sep 17
Start indoors: Feb 5 to Feb 12Sow outdoors: Mar 12 to Mar 26Plant for fall: Sep 10 to Sep 24
Start indoors: Feb 5 to Feb 12Sow outdoors: Mar 12 to Mar 26
Start indoors: Feb 5 to Feb 12Transplant outside: Mar 19 to Apr 2
Sow outdoors: Feb 12 to Mar 12Plant for fall: Aug 27 to Sep 10
Sow outdoors: Feb 12 to Mar 12Plant for fall: Sep 10 to Sep 24
Sow outdoors: Feb 12 to Mar 5
Sow outdoors: Feb 19 to Mar 19Plant for fall: Sep 10 to Sep 24
Sow outdoors: Feb 19 to Mar 12Plant for fall: Sep 24 to Oct 15
Sow outdoors: Mar 12 to Apr 2Plant for fall: Sep 3 to Sep 17
Sow outdoors: Mar 12 to Mar 26
Transplant outside: Mar 19 to Apr 9
Plant for fall: Nov 5 to Dec 10
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Marble Canyon, AZ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 11 – Dec 25 | Feb 5 – Feb 19 | — | — |
| Peppers | Dec 25 – Jan 8 | Mar 19 – Apr 2 | — | — |
| Eggplant | Dec 25 – Jan 8 | Mar 19 – Apr 2 | — | — |
| Tomatoes | Jan 8 – Jan 22 | Mar 12 – Mar 26 | — | — |
| Lettuce | Jan 8 – Jan 22 | Feb 12 – Feb 26 | Feb 5 – Mar 12 | Sep 24 – Oct 22 |
| Kale | Jan 8 – Jan 22 | Feb 5 – Feb 19 | Feb 5 – Feb 19 | Sep 10 – Oct 1 |
| Broccoli | Jan 8 – Jan 22 | Feb 19 – Mar 5 | — | Aug 13 – Sep 3 |
| Cabbage | Jan 8 – Jan 22 | Feb 12 – Feb 26 | — | Aug 13 – Sep 3 |
| Cauliflower | Jan 8 – Jan 22 | Feb 19 – Mar 5 | — | Aug 13 – Sep 3 |
| Okra | Jan 22 – Feb 5 | Mar 26 – Apr 9 | Mar 26 – Apr 9 | — |
| Basil | Jan 22 – Feb 5 | Mar 12 – Mar 26 | — | — |
| Peas | — | — | Jan 22 – Feb 12 | Aug 27 – Sep 17 |
| Spinach | — | — | Jan 22 – Feb 12 | Sep 24 – Oct 15 |
| Radishes | — | — | Jan 29 – Mar 12 | Oct 8 – Oct 29 |
| Cucumbers | Feb 5 – Feb 12 | Mar 19 – Mar 26 | Mar 12 – Mar 26 | Sep 3 – Sep 17 |
| Zucchini & Summer Squash | Feb 5 – Feb 12 | — | Mar 12 – Mar 26 | Sep 10 – Sep 24 |
| Winter Squash & Pumpkins | Feb 5 – Feb 12 | — | Mar 12 – Mar 26 | — |
| Melons & Watermelon | Feb 5 – Feb 12 | Mar 19 – Apr 2 | — | — |
| Carrots | — | — | Feb 12 – Mar 12 | Aug 27 – Sep 10 |
| Beets | — | — | Feb 12 – Mar 12 | Sep 10 – Sep 24 |
| Potatoes | — | — | Feb 12 – Mar 5 | — |
| Swiss Chard | — | — | Feb 19 – Mar 19 | Sep 10 – Sep 24 |
| Cilantro | — | — | Feb 19 – Mar 12 | Sep 24 – Oct 15 |
| Green Beans | — | — | Mar 12 – Apr 2 | Sep 3 – Sep 17 |
| Sweet Corn | — | — | Mar 12 – Mar 26 | — |
| Sweet Potatoes | — | Mar 19 – Apr 9 | — | — |
| Garlic | — | — | — | Nov 5 – Dec 10 |
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 Lees Ferry, AZ weather station, 24 km away (elevation 3,209 ft (978 m)).
Frost dates near Marble Canyon
- Page Mar 27 · Nov 9
- Kaibeto Apr 16 · Oct 28
- North Rim Jun 3 · Sep 27
- Fredonia Apr 29 · Oct 22
- Tuba City Apr 16 · Oct 28
- Tonalea May 7 · Oct 15
- Cameron Apr 16 · Oct 28
- Grand Canyon Jun 17 · Sep 24
- Supai Jun 1 · Oct 3
- Shonto May 7 · Oct 15
Frequently asked questions
When is the last frost in Marble Canyon, AZ?
The median last spring frost in Marble Canyon, AZ is March 5. There is still about a 10% chance of frost after March 26, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Marble Canyon, AZ?
The median first fall frost is November 19, with about a 10% chance of frost before November 4.
How long is the growing season in Marble Canyon, AZ?
About 259 days between the median last spring frost and first fall frost.
What planting zone is Marble Canyon, AZ?
Marble Canyon, AZ is in USDA hardiness zone 7b.