Last frost date in Flower Mound, TX

Average last frost
March 14

In Flower Mound, the last spring frost comes around March 14 in an average year. Wait until April 3 if you want 90% odds of no more frost. The first fall frost usually arrives about November 17, which leaves 249 frost-free days. An early freeze before November 2 happens one year in ten.

Safe after (10% risk)
Apr 3
Average first frost
Nov 17
Frost-free season
249 days
Hard freeze (28°F) ends
Mar 1
Next 7 nights in Flower Mound

No frost in the next 7 nights

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

  1. ThuOct 2257°
  2. FriOct 2358°
  3. SatOct 2461°
  4. SunOct 2557°
  5. MonOct 2658°
  6. TueOct 2755°
  7. WedOct 2857°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Mar 14First frost Nov 17249 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND249 frost-free days
Frost risk through the year at Grapevine Dam, 6.9 miles from Flower Mound.

Planting calendar for Flower Mound

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
TomatoesMar 21–Apr 4
PumpkinsMar 28–Apr 11
SunflowersMar 14–Apr 4
CucumbersMar 28–Apr 4
CornMar 21–Apr 4
Sweet potatoesApr 4–Apr 18
WatermelonMar 28–Apr 11
Green beansMar 21–Apr 11
ZucchiniMar 21–Apr 4
OkraApr 4–Apr 18
PeppersMar 28–Apr 11
BasilMar 21–Apr 4
Butternut squashMar 21–Apr 4
CantaloupeMar 28–Apr 11
EggplantMar 28–Apr 11
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesFeb 14–Feb 28
OnionsJan 31–Feb 21
CarrotsFeb 21–Mar 28
LettuceFeb 28–Mar 21
BroccoliFeb 14–Feb 28
BeetsFeb 14–Mar 28
PeasJan 31–Feb 14
CabbageFeb 14–Feb 28
RadishesFeb 7–Mar 21
Brussels sproutsFeb 28–Mar 14
SpinachJan 31–Feb 21
CilantroFeb 28–Mar 21
KaleFeb 14–Feb 28
Collard greensFeb 14–Feb 28
TurnipsFeb 14–Feb 28
DillMar 14–Mar 28
CeleryMar 21–Mar 28
CauliflowerFeb 28–Mar 14
LeeksFeb 28–Mar 14
Swiss chardFeb 28–Mar 28
ParsleyFeb 28–Mar 21
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsNov 3–Dec 8
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesFeb 14–Feb 28
AsparagusFeb 14–Feb 28

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FFeb 23Mar 14Apr 3Nov 2Nov 17Dec 4
Hard freeze, 28°FFeb 4Mar 1Mar 20Nov 9Nov 29Dec 20

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 Grapevine Dam (USC00413691) sits 6.9 miles from the center of Flower Mound at 585 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 Flower Mound, TX?

The average last frost date in Flower Mound is March 14, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 3.

When is the first frost in Flower Mound?

The first frost in fall usually comes around November 17. One year in ten it arrives before November 2.

How long is the growing season in Flower Mound?

About 249 days between the average last and first frost.

When should I plant tomatoes in Flower Mound?

Plant tomato seedlings outside from March 21 to April 4. Start seeds indoors six to eight weeks earlier.

Nearby in Texas

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