Last frost date in Laramie, Wyoming

June 7

Average last frost in spring. In an early year (1 in 10) it's over by May 23; in a late year (1 in 10) it comes after June 29.

September 4

Average first frost in fall. 1 year in 10 it comes by August 17.

Source: NOAA U.S. Climate Normals 1991–2020, station Laramie 2 NW (USC00485435), 2.4 miles from Laramie, elevation 7,140 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Laramie, Wyoming
Early yearAverageLate year
Last frost in springMay 23June 7June 29
First frost in fallAug 17Sept 4Sept 18

An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.

Frost-free days in an average year: 88

Planting calendar for Laramie

Fall planting

USDA dates for places whose average first freeze is about August 30 (Laramie: September 4).

USDA lists garlic, horseradish, shallots as generally spring-planted here.

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.

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