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USDA Hardiness Zone 9b

Frost Dates for 70528 — Delcambre, Louisiana

Averages from New Iberia Acadiana Ap, La US, the nearest reporting station, 8.8 miles away.

Plant tender crops after February 10, and expect the first autumn freeze around December 11. That leaves about 305 frost-free days.

Last spring frost
February 10

50% probability

First fall frost
December 11

50% probability

Growing season
305 days

frost-free

Hardiness zone
9b

25 to 30°F annual low

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
0%

0 of 17 observed

Snow per year

NOAA normal

When it snows in Delcambre, Louisiana

Measurable snow is rare here: only 0 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at New Iberia Acadiana Ap, La US, so there is no typical first-snow date to plan around.

For a gardener, snow matters less than frost: a light snow on frozen ground changes nothing, while a hard frost on an unprotected bed ends the season. Use the frost dates above for planting and the snow dates for getting hoses drained, mulch down and tender pots indoors.

Planting calendar for 70528

What to do and when, based on the frost normals for Delcambre, Louisiana
WhenWhat to do
December 2 – December 16

Start peppers and aubergines indoors

They need eight to ten weeks under lights before they can go out.

December 16 – December 30

Start tomatoes indoors

Six to eight weeks gives a transplant big enough to set fruit early.

January 13 – January 27

Sow peas, spinach, lettuce, radish outdoors

These tolerate light frost and prefer to germinate in cool soil.

February 10 onward

Transplant tomatoes, peppers, basil, squash, cucumbers

The average last freeze has passed — still watch the actual forecast.

by September 18

Sow the autumn crop of carrots, beets and brassicas

They need about twelve weeks to size up before growth stops.

by November 27

Harvest tender crops, or be ready to cover them

A first freeze two weeks early is well within normal variation.

December 11 onward

Plant garlic, mulch beds, lift tender bulbs

Garlic wants a cold spell; bare soil loses structure over winter.

What these dates mean

Wait until after February 10 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Delcambre, Louisiana are past their last freeze. Harvest before December 11, which leaves roughly 305 frost-free days.

ZIP 70528 sits in USDA hardiness zone 9b, meaning the average coldest night of the year falls between 25 to 30°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.

These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.

Other zone 9b ZIP codes in Louisiana