Last frost date in Clemmons, NC

Average last frost
April 9

The average last frost in Clemmons is April 9. By April 23 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 31, which leaves 204 frost-free days. An early freeze before October 20 happens one year in ten.

Safe after (10% risk)
Apr 23
Average first frost
Oct 31
Frost-free season
204 days
Hard freeze (28°F) ends
Mar 28
Next 7 nights in Clemmons

No frost in the next 7 nights

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

  1. ThuOct 2242°
  2. FriOct 2342°
  3. SatOct 2440°
  4. SunOct 2539°
  5. MonOct 2640°
  6. TueOct 2745°
  7. WedOct 2845°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Apr 9First frost Oct 31204 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND204 frost-free days
Frost risk through the year at Pfafftown, 8.5 miles from Clemmons.

Planting calendar for Clemmons

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesApr 16–Apr 30
PumpkinsApr 23–May 7
SunflowersApr 9–Apr 30
CucumbersApr 23–Apr 30
CornApr 16–Apr 30
Sweet potatoesApr 30–May 14
WatermelonApr 23–May 7
Green beansApr 16–May 7
ZucchiniApr 16–Apr 30
OkraApr 30–May 14
PeppersApr 23–May 7
BasilApr 16–Apr 30
Butternut squashApr 16–Apr 30
CantaloupeApr 23–May 7
EggplantApr 23–May 7
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesMar 12–Mar 26
OnionsFeb 26–Mar 19
CarrotsMar 19–Apr 23
LettuceMar 26–Apr 16
BroccoliMar 12–Mar 26
BeetsMar 12–Apr 23
PeasFeb 26–Mar 12
CabbageMar 12–Mar 26
RadishesMar 5–Apr 16
Brussels sproutsMar 26–Apr 9
SpinachFeb 26–Mar 19
CilantroMar 26–Apr 16
KaleMar 12–Mar 26
Collard greensMar 12–Mar 26
TurnipsMar 12–Mar 26
DillApr 9–Apr 23
CeleryApr 16–Apr 23
CauliflowerMar 26–Apr 9
LeeksMar 26–Apr 9
Swiss chardMar 26–Apr 23
ParsleyMar 26–Apr 16
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsOct 17–Nov 21
GarlicOct 10–Nov 14
Daffodil bulbsOct 3–Nov 14
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesMar 12–Mar 26
AsparagusMar 12–Mar 26

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FMar 25Apr 9Apr 23Oct 20Oct 31Nov 11
Hard freeze, 28°FMar 12Mar 28Apr 12Oct 28Nov 8Nov 24

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 Pfafftown (USC00316686) sits 8.5 miles from the center of Clemmons at 950 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 Clemmons, NC?

The average last frost date in Clemmons is April 9, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 23.

When is the first frost in Clemmons?

The first frost in fall usually comes around October 31. One year in ten it arrives before October 20.

How long is the growing season in Clemmons?

About 204 days between the average last and first frost.

When should I plant tomatoes in Clemmons?

Plant tomato seedlings outside from April 16 to April 30. Start seeds indoors six to eight weeks earlier.

Nearby in North Carolina

All 52 cities in North Carolina