Mountain Park, OK frost dates
Last spring frostMar 28median date
First fall frostNov 6median date
Growing season223 daysfrost-free
Hardiness zone7bZone 7b
How Mountain Park compares
- In 8 years out of 10, the last spring frost in Mountain Park falls between March 7 and April 17, a 41-day window. The first fall frost falls between October 21 and November 24.
- The median last frost is 7 days earlier than the Oklahoma median of Apr 4.
- Its 223-day growing season is longer than 87% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is 8 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 82 nights a year at or below 32°F.
- Compared with Lawton, OK, 51 km away, the last frost here is 2 days later than there and the growing season is 3 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 7 |
| 50% (median) | March 28 |
| 10% (safe for tender plants) | April 17 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 21 |
| 50% (median) | November 6 |
| 90% (late) | November 24 |
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 Mountain Park, OK
Mountain Park, OK frost dates — last frost Mar 28, first frost Nov 6, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Jan 3 to Jan 17Transplant outside: Feb 28 to Mar 14
Start indoors: Jan 17 to Jan 31Transplant outside: Apr 11 to Apr 25
Start indoors: Jan 17 to Jan 31Transplant outside: Apr 11 to Apr 25
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 4 to Apr 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 7 to Mar 21Sow outdoors: Feb 28 to Apr 4Plant for fall: Sep 11 to Oct 9
Start indoors: Jan 31 to Feb 14Transplant outside: Feb 28 to Mar 14Sow outdoors: Feb 28 to Mar 14Plant for fall: Aug 28 to Sep 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 14 to Mar 28Plant for fall: Jul 31 to Aug 21
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 7 to Mar 21Plant for fall: Jul 31 to Aug 21
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 14 to Mar 28Plant for fall: Jul 31 to Aug 21
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 18 to May 2Sow outdoors: Apr 18 to May 2
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 4 to Apr 18
Sow outdoors: Feb 14 to Mar 7Plant for fall: Aug 14 to Sep 4
Sow outdoors: Feb 14 to Mar 7Plant for fall: Sep 11 to Oct 2
Sow outdoors: Feb 21 to Apr 4Plant for fall: Sep 25 to Oct 16
Start indoors: Feb 28 to Mar 7Transplant outside: Apr 11 to Apr 18Sow outdoors: Apr 4 to Apr 18Plant for fall: Aug 21 to Sep 4
Start indoors: Feb 28 to Mar 7Sow outdoors: Apr 4 to Apr 18Plant for fall: Aug 28 to Sep 11
Start indoors: Feb 28 to Mar 7Sow outdoors: Apr 4 to Apr 18
Start indoors: Feb 28 to Mar 7Transplant outside: Apr 11 to Apr 25
Sow outdoors: Mar 7 to Apr 4Plant for fall: Aug 14 to Aug 28
Sow outdoors: Mar 7 to Apr 4Plant for fall: Aug 28 to Sep 11
Sow outdoors: Mar 7 to Mar 28
Sow outdoors: Mar 14 to Apr 11Plant for fall: Aug 28 to Sep 11
Sow outdoors: Mar 14 to Apr 4Plant for fall: Sep 11 to Oct 2
Sow outdoors: Apr 4 to Apr 25Plant for fall: Aug 21 to Sep 4
Sow outdoors: Apr 4 to Apr 18
Transplant outside: Apr 11 to May 2
Plant for fall: Oct 23 to Nov 27
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Mountain Park, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 3 – Jan 17 | Feb 28 – Mar 14 | — | — |
| Peppers | Jan 17 – Jan 31 | Apr 11 – Apr 25 | — | — |
| Eggplant | Jan 17 – Jan 31 | Apr 11 – Apr 25 | — | — |
| Tomatoes | Jan 31 – Feb 14 | Apr 4 – Apr 18 | — | — |
| Lettuce | Jan 31 – Feb 14 | Mar 7 – Mar 21 | Feb 28 – Apr 4 | Sep 11 – Oct 9 |
| Kale | Jan 31 – Feb 14 | Feb 28 – Mar 14 | Feb 28 – Mar 14 | Aug 28 – Sep 18 |
| Broccoli | Jan 31 – Feb 14 | Mar 14 – Mar 28 | — | Jul 31 – Aug 21 |
| Cabbage | Jan 31 – Feb 14 | Mar 7 – Mar 21 | — | Jul 31 – Aug 21 |
| Cauliflower | Jan 31 – Feb 14 | Mar 14 – Mar 28 | — | Jul 31 – Aug 21 |
| Okra | Feb 14 – Feb 28 | Apr 18 – May 2 | Apr 18 – May 2 | — |
| Basil | Feb 14 – Feb 28 | Apr 4 – Apr 18 | — | — |
| Peas | — | — | Feb 14 – Mar 7 | Aug 14 – Sep 4 |
| Spinach | — | — | Feb 14 – Mar 7 | Sep 11 – Oct 2 |
| Radishes | — | — | Feb 21 – Apr 4 | Sep 25 – Oct 16 |
| Cucumbers | Feb 28 – Mar 7 | Apr 11 – Apr 18 | Apr 4 – Apr 18 | Aug 21 – Sep 4 |
| Zucchini & Summer Squash | Feb 28 – Mar 7 | — | Apr 4 – Apr 18 | Aug 28 – Sep 11 |
| Winter Squash & Pumpkins | Feb 28 – Mar 7 | — | Apr 4 – Apr 18 | — |
| Melons & Watermelon | Feb 28 – Mar 7 | Apr 11 – Apr 25 | — | — |
| Carrots | — | — | Mar 7 – Apr 4 | Aug 14 – Aug 28 |
| Beets | — | — | Mar 7 – Apr 4 | Aug 28 – Sep 11 |
| Potatoes | — | — | Mar 7 – Mar 28 | — |
| Swiss Chard | — | — | Mar 14 – Apr 11 | Aug 28 – Sep 11 |
| Cilantro | — | — | Mar 14 – Apr 4 | Sep 11 – Oct 2 |
| Green Beans | — | — | Apr 4 – Apr 25 | Aug 21 – Sep 4 |
| Sweet Corn | — | — | Apr 4 – Apr 18 | — |
| Sweet Potatoes | — | Apr 11 – May 2 | — | — |
| Garlic | — | — | — | Oct 23 – Nov 27 |
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 Wichita Mtn Wr, OK weather station, 23 km away (elevation 1,667 ft (508 m)).
Frost dates near Mountain Park
- Snyder Mar 28 · Nov 6
- Roosevelt Apr 4 · Nov 4
- Headrick Apr 5 · Nov 2
- Manitou Apr 3 · Nov 4
- Indiahoma Mar 28 · Nov 6
- Tipton Apr 3 · Nov 6
- Cache Mar 21 · Nov 12
- Frederick Apr 3 · Nov 4
- Altus Apr 5 · Nov 2
- Blair Apr 10 · Oct 29
Frequently asked questions
When is the last frost in Mountain Park, OK?
The median last spring frost in Mountain Park, OK is March 28. There is still about a 10% chance of frost after April 17, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Mountain Park, OK?
The median first fall frost is November 6, with about a 10% chance of frost before October 21.
How long is the growing season in Mountain Park, OK?
About 223 days between the median last spring frost and first fall frost.
What planting zone is Mountain Park, OK?
Mountain Park, OK is in USDA hardiness zone 7b.