Last frost date in Del City, OK
The average last frost in Del City is April 2. By April 18 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about November 5, which leaves 217 frost-free days. An early freeze before October 20 happens one year in ten.
- Safe after (10% risk)
- Apr 18
- Average first frost
- Nov 5
- Frost-free season
- 217 days
- Hard freeze (28°F) ends
- Mar 17
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2258°
- FriOct 2359°
- SatOct 2459°
- SunOct 2557°
- MonOct 2653°
- TueOct 2752°
- WedOct 2854°
Planting calendar for Del City
Windows count forward or back from the average frost dates above. Click a crop for dates across Oklahoma.
TomatoesApr 9–Apr 23
PumpkinsApr 16–Apr 30
SunflowersApr 2–Apr 23
CucumbersApr 16–Apr 23
CornApr 9–Apr 23
Sweet potatoesApr 23–May 7
WatermelonApr 16–Apr 30
Green beansApr 9–Apr 30
ZucchiniApr 9–Apr 23
OkraApr 23–May 7
PeppersApr 16–Apr 30
BasilApr 9–Apr 23
Butternut squashApr 9–Apr 23
CantaloupeApr 16–Apr 30
EggplantApr 16–Apr 30
PotatoesMar 5–Mar 19
OnionsFeb 19–Mar 12
CarrotsMar 12–Apr 16
LettuceMar 19–Apr 9
BroccoliMar 5–Mar 19
BeetsMar 5–Apr 16
PeasFeb 19–Mar 5
CabbageMar 5–Mar 19
RadishesFeb 26–Apr 9
Brussels sproutsMar 19–Apr 2
SpinachFeb 19–Mar 12
CilantroMar 19–Apr 9
KaleMar 5–Mar 19
Collard greensMar 5–Mar 19
TurnipsMar 5–Mar 19
DillApr 2–Apr 16
CeleryApr 9–Apr 16
CauliflowerMar 19–Apr 2
LeeksMar 19–Apr 2
Swiss chardMar 19–Apr 16
ParsleyMar 19–Apr 9
Tulip bulbsOct 22–Nov 26
GarlicOct 15–Nov 19
Daffodil bulbsOct 8–Nov 19
StrawberriesMar 5–Mar 19
AsparagusMar 5–Mar 19Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 12 | Apr 2 | Apr 18 | Oct 20 | Nov 5 | Nov 20 |
| Hard freeze, 28°F | Feb 28 | Mar 17 | Apr 6 | Oct 30 | Nov 13 | Dec 1 |
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 Spencer 2ENE Mesonet (USC00348390) sits 8.6 miles from the center of Del City at 1,223 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 Del City, OK?
The average last frost date in Del City is April 2, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 18.
When is the first frost in Del City?
The first frost in fall usually comes around November 5. One year in ten it arrives before October 20.
How long is the growing season in Del City?
About 217 days between the average last and first frost.
When should I plant tomatoes in Del City?
Plant tomato seedlings outside from April 9 to April 23. Start seeds indoors six to eight weeks earlier.
Nearby in Oklahoma
- Midwest CityApr 2
- Oklahoma CityApr 4
- MooreMar 31
- BethanyApr 2
- NormanApr 3
- EdmondApr 10
- MustangApr 4
- YukonApr 2
- ShawneeMar 30
- El RenoApr 6
- StillwaterApr 5
- EnidApr 6