Plant By Frost

Alabama

Frost dates for Dauphin Is #2, AL

At this NOAA station the last spring frost (32°F) usually comes by January 31 and the first fall frost around January 6, giving a growing season of about 340 days.

January 31average last spring frost
January 6average first fall frost

Frost odds

1 year in 10 the last spring frost is later thanFebruary 27
Half of years the last spring frost is later thanJanuary 31
9 years in 10 the last spring frost is later thanJanuary 1
1 year in 10 the first fall frost is earlier thanDecember 12
Half of years the first fall frost is earlier thanJanuary 6
9 years in 10 the first fall frost is earlier thanFebruary 2

A hard freeze (28°F) usually ends by January 21 and returns around January 13.

A light frost (36°F, which can still nip tender plants) usually ends by February 11 and returns around December 28.

Station USC00012172, elevation 2 m. Based on 28 years of 1991 to 2020 records. A garden higher up, in a hollow or far from this station can freeze later in spring.

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Sources

  1. U.S. Annual/Seasonal Climate Normals, 1991 to 2020 (freeze probability dates by station), NOAA National Centers for Environmental Information, checked 1 November 2026
  2. Annual/Seasonal Normals 1991 to 2020 documentation, NOAA National Centers for Environmental Information, checked 1 November 2026
  3. 2024 Gazetteer Files, ZIP Code Tabulation Areas, US Census Bureau, checked 1 November 2026