Hulett, WY 82720 Frost Dates
Hulett, WY: when does the frost end?
The last spring frost here typically falls around 05/23, about 268 days from today. Fall's first freeze usually shows up around 09/20, roughly 118 days after the last spring frost.
Hulett sits in USDA Zone 4b (-25 to -20°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 3 weeks until Hulett'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
05/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Hulett against the rest of the dataset
About 118 days separate Hulett's last and first frost, putting it 39,233 of 40,283 ZIP codes nationally. Within WY, it ranks 110 of 192.
Learn more
Before leaning on 82720's figures: the frost range explains how to read the range around Hulett's dates instead of trusting one, while local microclimates explains what one yard in Hulett can differ from the 82720 normal.