Last frost date in Del Rio, TX

Average last frost
February 16

Expect the last frost in Del Rio around February 16. Frost after March 10 happens in only one year out of ten. The first fall frost usually arrives about December 3, which leaves 293 frost-free days. An early freeze before November 14 happens one year in ten.

Safe after (10% risk)
Mar 10
Average first frost
Dec 3
Frost-free season
293 days
Hard freeze (28°F) ends
Jan 24
Next 7 nights in Del Rio

No frost in the next 7 nights

National Weather Service forecast, updated Oct 22, 12:57 UTC

  1. ThuOct 2264°
  2. FriOct 2365°
  3. SatOct 2466°
  4. SunOct 2565°
  5. MonOct 2663°
  6. TueOct 2761°
  7. WedOct 2861°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Feb 16First frost Dec 3293 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND293 frost-free days
Frost risk through the year at Del Rio International Airport, 2.7 miles from Del Rio.

Planting calendar for Del Rio

Windows count forward or back from the average frost dates above. Click a crop for dates across Texas.

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesFeb 23–Mar 9
PumpkinsMar 2–Mar 16
SunflowersFeb 16–Mar 9
CucumbersMar 2–Mar 9
CornFeb 23–Mar 9
Sweet potatoesMar 9–Mar 23
WatermelonMar 2–Mar 16
Green beansFeb 23–Mar 16
ZucchiniFeb 23–Mar 9
OkraMar 9–Mar 23
PeppersMar 2–Mar 16
BasilFeb 23–Mar 9
Butternut squashFeb 23–Mar 9
CantaloupeMar 2–Mar 16
EggplantMar 2–Mar 16
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesJan 19–Feb 2
OnionsJan 5–Jan 26
CarrotsJan 26–Mar 2
LettuceFeb 2–Feb 23
BroccoliJan 19–Feb 2
BeetsJan 19–Mar 2
PeasJan 5–Jan 19
CabbageJan 19–Feb 2
RadishesJan 12–Feb 23
Brussels sproutsFeb 2–Feb 16
SpinachJan 5–Jan 26
CilantroFeb 2–Feb 23
KaleJan 19–Feb 2
Collard greensJan 19–Feb 2
TurnipsJan 19–Feb 2
DillFeb 16–Mar 2
CeleryFeb 23–Mar 2
CauliflowerFeb 2–Feb 16
LeeksFeb 2–Feb 16
Swiss chardFeb 2–Mar 2
ParsleyFeb 2–Feb 23
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesJan 19–Feb 2
AsparagusJan 19–Feb 2

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FJan 19Feb 16Mar 10Nov 14Dec 3Dec 26
Hard freeze, 28°FDec 23Jan 24Feb 26Nov 27Dec 18Jan 19

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 Del Rio International Airport (USW00022010) sits 2.7 miles from the center of Del Rio at 999 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 Rio, TX?

The average last frost date in Del Rio is February 16, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 10.

When is the first frost in Del Rio?

The first frost in fall usually comes around December 3. One year in ten it arrives before November 14.

How long is the growing season in Del Rio?

About 293 days between the average last and first frost.

When should I plant tomatoes in Del Rio?

Plant tomato seedlings outside from February 23 to March 9. Start seeds indoors six to eight weeks earlier.

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