Last frost date in Ardmore, Oklahoma
March 15
Average last frost in spring. In an early year (1 in 10) it's over by February 24; in a late year (1 in 10) it comes after April 2.
November 14
Average first frost in fall. 1 year in 10 it comes by October 29.
Source: NOAA U.S. Climate Normals 1991–2020, station Ardmore (USC00340292), 2.2 miles from Ardmore, elevation 841 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Feb 24 | Mar 15 | Apr 2 |
| First frost in fall | Oct 29 | Nov 14 | Dec 2 |
An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.
Frost-free days in an average year: 244
Planting calendar for Ardmore
Fall planting
USDA dates for places whose average first freeze is about November 10 (Ardmore: November 14).
- CucumbersJune 1 – Aug 15 (past for this year)
- Eggplant plantsJune 1 – July 15 (past for this year)
- New Zealand spinachJune 1 – Aug 15 (past for this year)
- OkraJune 1 – Aug 20 (past for this year)
- Peppers plantsJune 1 – Aug 1 (past for this year)
- SoybeansJune 1 – July 25 (past for this year)
- Summer squashJune 1 – Aug 10 (past for this year)
- Sweet cornJune 1 – Aug 15 (past for this year)
- Sweet potatoesJune 1 – July 1 (past for this year)
- Swiss chardJune 1 – Sept 15 (past for this year)
- TomatoesJune 1 – July 15 (past for this year)
- Black-eyed peasJune 15 – Aug 15 (past for this year)
- SalsifyJune 15 – July 20 (past for this year)
- Winter squashJune 20 – July 20 (past for this year)
- Celery and celeriac plantsJuly 1 – Aug 15 (past for this year)
- Lima beansJuly 1 – Aug 15 (past for this year)
- Snap beansJuly 1 – Sept 1 (past for this year)
- Witloof chicoryJuly 10 – Aug 20 (past for this year)
- Cantaloupe (muskmelon)July 15 – 30 (past for this year)
- Florence fennelJuly 15 – Aug 15 (past for this year)
- RutabagaJuly 15 – Aug 15 (past for this year)
- WatermelonJuly 15 – 30 (past for this year)
- PotatoesJuly 25 – Aug 20 (past for this year)
- BeetsAug 1 – Oct 1 (past for this year)
- Broccoli plantsAug 1 – Sept 1 (past for this year)
- Brussels sprouts plantsAug 1 – Sept 1 (past for this year)
- CarrotsAug 1 – Sept 1 (past for this year)
- Cauliflower plantsAug 1 – Sept 1 (past for this year)
- EndiveAug 1 – Sept 1 (past for this year)
- GarlicAug 1 – Oct 1 (past for this year)
- KaleAug 1 – Sept 15 (past for this year)
- ShallotsAug 1 – Oct 1 (past for this year)
- Chinese cabbageAug 15 – Oct 1 (past for this year)
- Collards plantsAug 15 – Oct 1 (past for this year)
- Head lettuce plantsAug 15 – Oct 15 (past for this year)
- KohlrabiAug 15 – Sept 15 (past for this year)
- Mustard greensAug 15 – Nov 1Now
- SorrelAug 15 – Oct 1 (past for this year)
- Leaf lettuceAug 25 – Oct 1 (past for this year)
- Cabbage plantsSept 1 – 15 (past for this year)
- DandelionSept 1 – Oct 15 (past for this year)
- Garden peasSept 1 – Nov 1Now
- Onion plants plantsSept 1 – Oct 15 (past for this year)
- ParsleySept 1 – Nov 15Now
- RadishesSept 1 – Nov 15Now
- TurnipsSept 1 – Oct 15 (past for this year)
- SpinachSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 1Now
- Onion setsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Asparagus plantsDec 1 – Jan 1Soon
USDA lists chervil and chives, horseradish, leeks, parsnips as generally spring-planted here.
Spring planting
USDA dates for places whose average last freeze is about March 10 (Ardmore: March 15).
- Asparagus plantsJan 1 – Mar 1
- Corn saladJan 1 – Mar 15
- RadishesJan 1 – Apr 15
- Garden peasJan 15 – Mar 15
- Leaf lettuceJan 15 – Apr 1
- Onion plants plantsJan 15 – Feb 15
- Onion setsJan 15 – Mar 10
- ParsnipsJan 15 – Mar 1
- RutabagaJan 15 – Feb 15
- ShallotsJan 15 – Mar 1
- SpinachJan 15 – Mar 10
- Cabbage plantsJan 25 – Mar 1
- LeeksJan 25 – Mar 1
- Cauliflower plantsFeb 1 – Mar 1
- Chervil and chivesFeb 1 – Mar 1
- Collards plantsFeb 1 – Apr 1
- DandelionFeb 1 – Mar 1
- Head lettuce plantsFeb 1 – 20
- Onion seedFeb 1 – Mar 1
- ParsleyFeb 1 – Mar 10
- PotatoesFeb 1 – Mar 1
- SalsifyFeb 1 – Mar 1
- TurnipsFeb 1 – Mar 1
- CarrotsFeb 10 – Mar 15
- KaleFeb 10 – Mar 1
- KohlrabiFeb 10 – Mar 1
- Mustard greensFeb 10 – Mar 15
- SorrelFeb 10 – Mar 15
- Upland cressFeb 10 – Mar 15
- BeetsFeb 15 – June 1
- Broccoli plantsFeb 15 – Mar 15
- Brussels sprouts plantsFeb 15 – Mar 15
- EndiveFeb 15 – Mar 15
- Florence fennelFeb 15 – Mar 15
- Swiss chardFeb 15 – May 15
- Celery and celeriac plantsFeb 20 – Mar 20
- Sweet cornMar 10 – Apr 15
- Black-eyed peasMar 15 – July 1
- Cantaloupe (muskmelon)Mar 15 – Apr 15
- CucumbersMar 15 – Apr 15
- Eggplant plantsMar 15 – Apr 15
- Snap beansMar 15 – May 15
- Summer squashMar 15 – May 1
- WatermelonMar 15 – Apr 15
- Lima beansMar 20 – June 1
- New Zealand spinachMar 20 – May 15
- OkraMar 20 – June 1
- TomatoesMar 20 – May 10
- Peppers plantsApr 1 – June 1
- Sweet potatoesApr 1 – June 1
- SoybeansApr 10 – June 30
- Witloof chicoryJune 1 – July 1
USDA lists chinese cabbage, garlic as generally fall-planted here.
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.