Last frost date in Lawton, OK
In Lawton, the last spring frost comes around March 26 in an average year. Wait until April 14 if you want 90% odds of no more frost. The first fall frost usually arrives about November 7, which leaves 225 frost-free days. An early freeze before October 21 happens one year in ten.
- Safe after (10% risk)
- Apr 14
- Average first frost
- Nov 7
- Frost-free season
- 225 days
- Hard freeze (28°F) ends
- Mar 11
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2256°
- FriOct 2357°
- SatOct 2458°
- SunOct 2557°
- MonOct 2653°
- TueOct 2752°
- WedOct 2854°
Planting calendar for Lawton
Windows count forward or back from the average frost dates above. Click a crop for dates across Oklahoma.
TomatoesApr 2–Apr 16
PumpkinsApr 9–Apr 23
SunflowersMar 26–Apr 16
CucumbersApr 9–Apr 16
CornApr 2–Apr 16
Sweet potatoesApr 16–Apr 30
WatermelonApr 9–Apr 23
Green beansApr 2–Apr 23
ZucchiniApr 2–Apr 16
OkraApr 16–Apr 30
PeppersApr 9–Apr 23
BasilApr 2–Apr 16
Butternut squashApr 2–Apr 16
CantaloupeApr 9–Apr 23
EggplantApr 9–Apr 23
PotatoesFeb 26–Mar 12
OnionsFeb 12–Mar 5
CarrotsMar 5–Apr 9
LettuceMar 12–Apr 2
BroccoliFeb 26–Mar 12
BeetsFeb 26–Apr 9
PeasFeb 12–Feb 26
CabbageFeb 26–Mar 12
RadishesFeb 19–Apr 2
Brussels sproutsMar 12–Mar 26
SpinachFeb 12–Mar 5
CilantroMar 12–Apr 2
KaleFeb 26–Mar 12
Collard greensFeb 26–Mar 12
TurnipsFeb 26–Mar 12
DillMar 26–Apr 9
CeleryApr 2–Apr 9
CauliflowerMar 12–Mar 26
LeeksMar 12–Mar 26
Swiss chardMar 12–Apr 9
ParsleyMar 12–Apr 2
Tulip bulbsOct 24–Nov 28
GarlicOct 17–Nov 21
Daffodil bulbsOct 10–Nov 21
StrawberriesFeb 26–Mar 12
AsparagusFeb 26–Mar 12Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 4 | Mar 26 | Apr 14 | Oct 21 | Nov 7 | Nov 22 |
| Hard freeze, 28°F | Feb 22 | Mar 11 | Apr 3 | Oct 30 | Nov 16 | Dec 5 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Lawton (USC00345063) sits 2.1 miles from the center of Lawton at 1,150 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Lawton, OK?
The average last frost date in Lawton is March 26, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 14.
When is the first frost in Lawton?
The first frost in fall usually comes around November 7. One year in ten it arrives before October 21.
How long is the growing season in Lawton?
About 225 days between the average last and first frost.
When should I plant tomatoes in Lawton?
Plant tomato seedlings outside from April 2 to April 16. Start seeds indoors six to eight weeks earlier.