Plant By Frost

Massachusetts

Frost dates for Rowe 3Ne, MA

At this NOAA station the last spring frost (32°F) usually comes by May 14 and the first fall frost around October 4, giving a growing season of about 143 days.

May 14average last spring frost
October 4average first fall frost
JanAprJulOctDec

Frost odds

1 year in 10 the last spring frost is later thanMay 26
Half of years the last spring frost is later thanMay 14
9 years in 10 the last spring frost is later thanApril 30
1 year in 10 the first fall frost is earlier thanSeptember 20
Half of years the first fall frost is earlier thanOctober 4
9 years in 10 the first fall frost is earlier thanOctober 17

A hard freeze (28°F) usually ends by May 1 and returns around October 14.

A light frost (36°F, which can still nip tender plants) usually ends by May 25 and returns around September 23.

Station USC00196989, elevation 529 m. Based on 5 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