Frost dates for Ardmore, OK
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
March 18
typical year
Safe to plant
April 9
frost is over in 9 of 10 years
First fall frost
November 10
typical year
Growing season
238 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Feb 18 – Mar 4 | – |
| Spinach | – | Feb 4 – 25 | Sep 15 – 29 |
| Lettuce | – | Feb 18 – Mar 11 | Sep 15 – 29 |
| Radishes | – | Feb 18 – Apr 1 | Sep 29 – Oct 13 |
| Onions | – | Feb 18 – Mar 4 | – |
| Potatoes | – | Feb 25 – Mar 11 | – |
| Carrots | – | Feb 25 – Mar 18 | Aug 18 – Sep 1 |
| Beets | – | Feb 18 – Mar 4 | Sep 1 – 15 |
| Kale | Jan 7 – 21 | Feb 18 – Mar 4 | Sep 1 – 15 |
| Broccoli | Jan 7 – 21 | Mar 4 – 18 | Sep 1 – 15 |
| Cabbage | Dec 24 – Jan 7 | Feb 18 – Mar 4 | Sep 1 – 15 |
| Garlic | – | – | Sep 29 – Oct 20 |
| Warm-season crops | |||
| Tomatoes | Feb 12 – 26 | Apr 9 – 23 | – |
| Peppers | Feb 5 – 19 | Apr 16 – 30 | – |
| Cucumbers | – | Apr 9 – 30 | – |
| Zucchini | – | Apr 9 – May 7 | – |
| Pumpkins | – | Apr 9 – 30 | – |
| Green beans | – | Apr 9 – Sep 1 | – |
| Sweet corn | – | Apr 9 – May 7 | – |
| Basil | Mar 5 – 19 | Apr 16 – 23 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | April 9 | March 18 | February 28 |
| Fall frost before | October 26 | November 10 | November 28 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around March 5 (March 23 in a late year), and the first one in fall around November 21.
Towns that use these dates
This is the nearest NOAA station with frost records for 3 towns.
Ardmore, Dickson, Gene Autry
Where these dates come from
NOAA weather station ARDMORE 3ENE MESONET, OK US (USC00340313), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 7 miles:
73401, 73436
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.