Frost dates in Mississippi

Across Mississippi's 91 NOAA stations with a frost every year, the typical last spring frost ranges from February 23 at Gulfport - Biloxi Airport (40 feet above sea level) to April 9 at Iuka (600 feet above sea level). The middle station's date is March 17.

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Last frost across Mississippi

The frost-free season runs from 202 days at Hickory Flat to 287 days at Gulfport - Biloxi Airport.

The station with the latest frost is about 300 miles farther north than the one with the earliest.

At 3 stations a freezing night doesn't come every winter, so the dates there apply only to the years that have one.

These are typical dates: in half of springs the last frost comes later. Each place's page, and each ZIP code lookup, also gives the late-year date, after which only 1 spring in 10 has a frost. That's the safer date for tender plants.

Frost dates for Mississippi's larger places

Typical (1-in-2) dates. Each place's page has the early and late years, a planting calendar and a printable planner. Zones are for the ZIP code nearest each place's center.

Hardiness zones in Mississippi

Mississippi's 524 ZIP codes in the USDA list fall in zones 7b to 9a: 7b (4 percent), 8a (29 percent), 8b (58 percent) and 9a (9 percent). Compared with the 2012 map, 68 percent of them moved to a warmer half zone and 32 percent stayed the same.

A hardiness zone is about the coldest night of winter, which decides which shrubs, trees and perennials survive. Frost dates are about spring and fall, which decide when to plant. You need both. Read more about what the zones mean and what changed in 2023.

Every NOAA station in Mississippi

All 94 stations in Mississippi with frost statistics in NOAA's 1991 to 2020 normals, from A to Z. Station names are usually a town, an airport, or a distance and direction from a town. Find one near you and at a similar elevation.

*Not every winter has a freeze at this station; the date is for the years that do.

Typical (1-in-2) dates at 32°F. For the early and late years, and a planting calendar built from your own dates, look up your ZIP code.