Plant By Frost

Alaska

Frost dates for Central #2, AK

At this NOAA station the last spring frost (32°F) usually comes by May 25 and the first fall frost around August 26, giving a growing season of about 92 days.

May 25average last spring frost
August 26average first fall frost
JanAprJulOctDec

Frost odds

1 year in 10 the last spring frost is later thanJune 6
Half of years the last spring frost is later thanMay 25
9 years in 10 the last spring frost is later thanMay 12
1 year in 10 the first fall frost is earlier thanAugust 12
Half of years the first fall frost is earlier thanAugust 26
9 years in 10 the first fall frost is earlier thanSeptember 7

A hard freeze (28°F) usually ends by May 14 and returns around September 5.

Station USC00501466, elevation 280 m. Based on 15 years of 1991 to 2020 records. A garden higher up, in a hollow or far from this station can freeze later in spring.

Check another ZIP

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