Last frost date in Chalmette, LA

Average last frost
February 10

Expect the last frost in Chalmette around February 10. Frost after March 8 happens in only one year out of ten. The first fall frost usually arrives about December 17, which leaves 309 frost-free days. An early freeze before November 21 happens one year in ten.

Safe after (10% risk)
Mar 8
Average first frost
Dec 17
Frost-free season
309 days
Hard freeze (28°F) ends
Jan 26
Next 7 nights in Chalmette

No frost in the next 7 nights

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

  1. ThuOct 2260°
  2. FriOct 2362°
  3. SatOct 2460°
  4. SunOct 2560°
  5. MonOct 2661°
  6. TueOct 2760°
  7. WedOct 2861°
JanFebMarAprMayJunJulAugSepOctNovDecLast frost Feb 10First frost Dec 17309 frost-free daysBlue: chance of 32°F frost. Green: average frost-free season.JFMAMJJASOND309 frost-free days
Frost risk through the year at Chalmette, 1.2 miles from Chalmette.

Planting calendar for Chalmette

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

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
Warm-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
TomatoesFeb 17–Mar 3
PumpkinsFeb 24–Mar 10
SunflowersFeb 15–Mar 8
CucumbersFeb 24–Mar 3
CornFeb 17–Mar 3
Sweet potatoesMar 3–Mar 17
WatermelonFeb 24–Mar 10
Green beansFeb 17–Mar 10
ZucchiniFeb 17–Mar 3
OkraMar 3–Mar 17
PeppersFeb 24–Mar 10
BasilFeb 17–Mar 3
Butternut squashFeb 17–Mar 3
CantaloupeFeb 24–Mar 10
EggplantFeb 24–Mar 10
Cool-season crops
JanFebMarAprMayJunJulAugSepOctNovDec
PotatoesJan 13–Jan 27
OnionsDec 30–Jan 20
CarrotsJan 20–Feb 24
LettuceJan 27–Feb 17
BroccoliJan 13–Jan 27
BeetsJan 13–Feb 24
PeasDec 30–Jan 13
CabbageJan 13–Jan 27
RadishesJan 6–Feb 17
Brussels sproutsJan 27–Feb 10
SpinachDec 30–Jan 20
CilantroJan 27–Feb 17
KaleJan 13–Jan 27
Collard greensJan 13–Jan 27
TurnipsJan 13–Jan 27
DillFeb 10–Feb 24
CeleryFeb 17–Feb 24
CauliflowerJan 27–Feb 10
LeeksJan 27–Feb 10
Swiss chardJan 27–Feb 24
ParsleyJan 27–Feb 17
Fall bulbs and garlic
JanFebMarAprMayJunJulAugSepOctNovDec
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
Perennials
JanFebMarAprMayJunJulAugSepOctNovDec
StrawberriesJan 13–Jan 27
AsparagusJan 13–Jan 27

Frost probabilities

ThresholdSpring, 90% chance laterSpring, 50%Spring, 10%Fall, 10% chance earlierFall, 50%Fall, 90%
Light frost, 32°FJan 12Feb 10Mar 8Nov 21Dec 17Jan 14
Hard freeze, 28°FDec 31Jan 26Feb 21Dec 4Jan 2Jan 30

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 Chalmette (USC00166130) sits 1.2 miles from the center of Chalmette at 3 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 Chalmette, LA?

The average last frost date in Chalmette is February 10, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 8.

When is the first frost in Chalmette?

The first frost in fall usually comes around December 17. One year in ten it arrives before November 21.

How long is the growing season in Chalmette?

About 309 days between the average last and first frost.

When should I plant tomatoes in Chalmette?

Plant tomato seedlings outside from February 17 to March 3. Start seeds indoors six to eight weeks earlier.

Nearby in Louisiana

All 26 cities in Louisiana