Last frost date in Summerlin South, NV

Average last frost
March 13

The average last frost in Summerlin South is March 13. By April 11 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about November 15, which leaves 244 frost-free days. An early freeze before October 31 happens one year in ten.

Safe after (10% risk)
Apr 11
Average first frost
Nov 15
Frost-free season
244 days
Hard freeze (28°F) ends
Feb 21
Next 6 nights in Summerlin South

No frost in the next 6 nights

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

  1. ThuOct 2250°
  2. FriOct 2355°
  3. SatOct 2455°
  4. SunOct 2555°
  5. MonOct 2655°
  6. TueOct 2755°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Mar 13First frost Nov 15244 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND244 frost-free days
Frost risk through the year at Red Rock Canyon - Spg Mount Rch S, 8.1 miles from Summerlin South.

Planting calendar for Summerlin South

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesMar 20–Apr 3
PumpkinsMar 27–Apr 10
SunflowersMar 13–Apr 3
CucumbersMar 27–Apr 3
CornMar 20–Apr 3
Sweet potatoesApr 3–Apr 17
WatermelonMar 27–Apr 10
Green beansMar 20–Apr 10
ZucchiniMar 20–Apr 3
OkraApr 3–Apr 17
PeppersMar 27–Apr 10
BasilMar 20–Apr 3
Butternut squashMar 20–Apr 3
CantaloupeMar 27–Apr 10
EggplantMar 27–Apr 10
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesFeb 13–Feb 27
OnionsJan 30–Feb 20
CarrotsFeb 20–Mar 27
LettuceFeb 27–Mar 20
BroccoliFeb 13–Feb 27
BeetsFeb 13–Mar 27
PeasJan 30–Feb 13
CabbageFeb 13–Feb 27
RadishesFeb 6–Mar 20
Brussels sproutsFeb 27–Mar 13
SpinachJan 30–Feb 20
CilantroFeb 27–Mar 20
KaleFeb 13–Feb 27
Collard greensFeb 13–Feb 27
TurnipsFeb 13–Feb 27
DillMar 13–Mar 27
CeleryMar 20–Mar 27
CauliflowerFeb 27–Mar 13
LeeksFeb 27–Mar 13
Swiss chardFeb 27–Mar 27
ParsleyFeb 27–Mar 20
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsNov 1–Dec 6
GarlicOct 25–Nov 29
Daffodil bulbsOct 18–Nov 29
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesFeb 13–Feb 27
AsparagusFeb 13–Feb 27

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FFeb 20Mar 13Apr 11Oct 31Nov 15Nov 30
Hard freeze, 28°FJan 29Feb 21Mar 19Nov 9Nov 27Dec 15

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 Red Rock Canyon - Spg Mount Rch S (USC00266691) sits 8.1 miles from the center of Summerlin South at 3,780 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 Summerlin South, NV?

The average last frost date in Summerlin South is March 13, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 11.

When is the first frost in Summerlin South?

The first frost in fall usually comes around November 15. One year in ten it arrives before October 31.

How long is the growing season in Summerlin South?

About 244 days between the average last and first frost.

When should I plant tomatoes in Summerlin South?

Plant tomato seedlings outside from March 20 to April 3. Start seeds indoors six to eight weeks earlier.

Nearby in Nevada

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