Plant By Frost

Colorado

Frost dates for Monte Vista 2W, CO

At this NOAA station the last spring frost (32°F) usually comes by June 11 and the first fall frost around September 13, giving a growing season of about 92 days.

June 11average last spring frost
September 13average first fall frost
JanAprJulOctDec

Frost odds

1 year in 10 the last spring frost is later thanJune 25
Half of years the last spring frost is later thanJune 11
9 years in 10 the last spring frost is later thanJune 1
1 year in 10 the first fall frost is earlier thanSeptember 1
Half of years the first fall frost is earlier thanSeptember 13
9 years in 10 the first fall frost is earlier thanSeptember 24

A hard freeze (28°F) usually ends by May 30 and returns around September 23.

Station USC00055706, elevation 2345 m. Based on 26 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