Plant By Frost

Wyoming

Frost dates for Moose 1 Nne, WY

At this NOAA station the last spring frost (32°F) usually comes by June 24 and the first fall frost around August 28, giving a growing season of about 63 days.

June 24average last spring frost
August 28average first fall frost
JanAprJulOctDec

Frost odds

1 year in 10 the last spring frost is later thanJuly 11
Half of years the last spring frost is later thanJune 24
9 years in 10 the last spring frost is later thanJune 8
1 year in 10 the first fall frost is earlier thanAugust 8
Half of years the first fall frost is earlier thanAugust 28
9 years in 10 the first fall frost is earlier thanSeptember 12

A hard freeze (28°F) usually ends by June 7 and returns around September 12.

Station USW00004131, elevation 1971 m. Based on 16 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