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USDA Hardiness Zone 8b

Frost Dates for 38941 — Itta Bena, Mississippi

Averages from Moorhead, Ms US, the nearest reporting station, 11 miles away.

Plant tender crops after March 8, and expect the first autumn freeze around November 20. That leaves about 255 frost-free days.

Last spring frost
March 8

50% probability

First fall frost
November 20

50% probability

Growing season
255 days

frost-free

Hardiness zone
8b

15 to 20°F annual low

Planting calendar for 38941

What to do and when, based on the frost normals for Itta Bena, Mississippi
WhenWhat to do
December 28 – January 11

Start peppers and aubergines indoors

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

January 11 – January 25

Start tomatoes indoors

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

February 8 – February 22

Sow peas, spinach, lettuce, radish outdoors

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

March 8 onward

Transplant tomatoes, peppers, basil, squash, cucumbers

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

by August 28

Sow the autumn crop of carrots, beets and brassicas

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

by November 6

Harvest tender crops, or be ready to cover them

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

November 20 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 March 8 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Itta Bena, Mississippi are past their last freeze. Harvest before November 20, which leaves roughly 255 frost-free days.

ZIP 38941 sits in USDA hardiness zone 8b, meaning the average coldest night of the year falls between 15 to 20°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 8b ZIP codes in Mississippi