Burns Flat, OK frost dates
Last spring frostApr 3median date
First fall frostNov 1median date
Growing season212 daysfrost-free
Hardiness zone7bZone 7b
How Burns Flat compares
- In 8 years out of 10, the last spring frost in Burns Flat falls between March 15 and April 20, a 36-day window. The first fall frost falls between October 19 and November 15.
- The median last frost is 1 day earlier than the Oklahoma median of Apr 4.
- Its 212-day growing season is longer than 52% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 82 nights a year at or below 32°F.
- Compared with Lawton, OK, 108 km away, the last frost here is 8 days later than there and the growing season is 14 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 15 |
| 50% (median) | April 3 |
| 10% (safe for tender plants) | April 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 19 |
| 50% (median) | November 1 |
| 90% (late) | November 15 |
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 Burns Flat, OK
Burns Flat, OK frost dates — last frost Apr 3, first frost Nov 1, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Jan 9 to Jan 23Transplant outside: Mar 6 to Mar 20
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Feb 6 to Feb 20Transplant outside: Apr 10 to Apr 24
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 6 to Apr 10Plant for fall: Sep 6 to Oct 4
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 6 to Mar 20Sow outdoors: Mar 6 to Mar 20Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 24 to May 8Sow outdoors: Apr 24 to May 8
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 10 to Apr 24
Sow outdoors: Feb 20 to Mar 13Plant for fall: Aug 9 to Aug 30
Sow outdoors: Feb 20 to Mar 13Plant for fall: Sep 6 to Sep 27
Sow outdoors: Feb 27 to Apr 10Plant for fall: Sep 20 to Oct 11
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to Apr 24Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 23 to Sep 6
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Mar 13 to Apr 10Plant for fall: Aug 9 to Aug 23
Sow outdoors: Mar 13 to Apr 10Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 13 to Apr 3
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 20 to Apr 10Plant for fall: Sep 6 to Sep 27
Sow outdoors: Apr 10 to May 1Plant for fall: Aug 16 to Aug 30
Sow outdoors: Apr 10 to Apr 24
Transplant outside: Apr 17 to May 8
Plant for fall: Oct 18 to Nov 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Burns Flat, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 9 – Jan 23 | Mar 6 – Mar 20 | — | — |
| Peppers | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Eggplant | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Tomatoes | Feb 6 – Feb 20 | Apr 10 – Apr 24 | — | — |
| Lettuce | Feb 6 – Feb 20 | Mar 13 – Mar 27 | Mar 6 – Apr 10 | Sep 6 – Oct 4 |
| Kale | Feb 6 – Feb 20 | Mar 6 – Mar 20 | Mar 6 – Mar 20 | Aug 23 – Sep 13 |
| Broccoli | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Jul 26 – Aug 16 |
| Cabbage | Feb 6 – Feb 20 | Mar 13 – Mar 27 | — | Jul 26 – Aug 16 |
| Cauliflower | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Jul 26 – Aug 16 |
| Okra | Feb 20 – Mar 6 | Apr 24 – May 8 | Apr 24 – May 8 | — |
| Basil | Feb 20 – Mar 6 | Apr 10 – Apr 24 | — | — |
| Peas | — | — | Feb 20 – Mar 13 | Aug 9 – Aug 30 |
| Spinach | — | — | Feb 20 – Mar 13 | Sep 6 – Sep 27 |
| Radishes | — | — | Feb 27 – Apr 10 | Sep 20 – Oct 11 |
| Cucumbers | Mar 6 – Mar 13 | Apr 17 – Apr 24 | Apr 10 – Apr 24 | Aug 16 – Aug 30 |
| Zucchini & Summer Squash | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | Aug 23 – Sep 6 |
| Winter Squash & Pumpkins | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | — |
| Melons & Watermelon | Mar 6 – Mar 13 | Apr 17 – May 1 | — | — |
| Carrots | — | — | Mar 13 – Apr 10 | Aug 9 – Aug 23 |
| Beets | — | — | Mar 13 – Apr 10 | Aug 23 – Sep 6 |
| Potatoes | — | — | Mar 13 – Apr 3 | — |
| Swiss Chard | — | — | Mar 20 – Apr 17 | Aug 23 – Sep 6 |
| Cilantro | — | — | Mar 20 – Apr 10 | Sep 6 – Sep 27 |
| Green Beans | — | — | Apr 10 – May 1 | Aug 16 – Aug 30 |
| Sweet Corn | — | — | Apr 10 – Apr 24 | — |
| Sweet Potatoes | — | Apr 17 – May 8 | — | — |
| Garlic | — | — | — | Oct 18 – Nov 22 |
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 Bessie 4wnw Mesonet, OK weather station, 13 km away (elevation 1,677 ft (511 m)).
Frost dates near Burns Flat
- Dill City Apr 5 · Nov 4
- Canute Apr 3 · Nov 1
- Foss Apr 3 · Nov 1
- Bessie Apr 3 · Nov 1
- Sentinel Apr 5 · Nov 4
- Elk City Apr 5 · Nov 2
- Cordell Apr 3 · Nov 1
- Rocky Apr 5 · Nov 4
- Clinton Apr 13 · Oct 28
- Carter Apr 5 · Nov 2
Frequently asked questions
When is the last frost in Burns Flat, OK?
The median last spring frost in Burns Flat, OK is April 3. There is still about a 10% chance of frost after April 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Burns Flat, OK?
The median first fall frost is November 1, with about a 10% chance of frost before October 19.
How long is the growing season in Burns Flat, OK?
About 212 days between the median last spring frost and first fall frost.
What planting zone is Burns Flat, OK?
Burns Flat, OK is in USDA hardiness zone 7b.