Mountain View, WY 82936 Frost Dates
Mountain View, WY: when does the frost end?
Typically, the last spring freeze lands around 06/14, roughly 290 days out. Fall's first freeze usually shows up around 09/09, roughly 84 days after the last spring frost.
Mountain View sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 2 weeks until Mountain View's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
06/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 07/01 and only about 1 year in 10 sees frost after that.
Mountain View against the rest of the dataset
About 84 days separate Mountain View's last and first frost, putting it 40,000 of 40,283 ZIP codes nationally. Within WY, it ranks 150 of 192.
Learn more
Before leaning on 82936's figures: local microclimates explains what one yard in Mountain View can differ from the 82936 normal, while zone vs. frost date explains why Zone 5b and Mountain View's frost date answer different questions.