Plant By Frost

Vermont

Frost dates for Morrisville 4 Ssw, VT

At this NOAA station the last spring frost (32°F) usually comes by May 24 and the first fall frost around September 27, giving a growing season of about 123 days.

May 24average last spring frost
September 27average first fall frost
JanAprJulOctDec

Frost odds

1 year in 10 the last spring frost is later thanJune 5
Half of years the last spring frost is later thanMay 24
9 years in 10 the last spring frost is later thanMay 12
1 year in 10 the first fall frost is earlier thanSeptember 13
Half of years the first fall frost is earlier thanSeptember 27
9 years in 10 the first fall frost is earlier thanOctober 7

A hard freeze (28°F) usually ends by May 13 and returns around October 6.

A light frost (36°F, which can still nip tender plants) usually ends by June 4 and returns around September 15.

Station USC00435376, elevation 232 m. Based on 14 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