Saratoga, WY 82331 Frost Dates
82331, near Saratoga, WY: the frost window
Typically, the last spring freeze lands around 06/12, roughly 288 days out. Fall's first freeze usually shows up around 09/07, roughly 83 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Saratoga in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Saratoga's growing season runs out in roughly 1 week — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Saratoga's last frost
06/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/30 and only about 1 year in 10 sees frost after that.
Saratoga against the rest of the dataset
About 83 days separate Saratoga's last and first frost, putting it 40,016 of 40,283 ZIP codes nationally. Within WY, it ranks 155 of 192.
Learn more
Two guides worth reading on 82331: the frost range, on how to read the range around Saratoga's dates instead of trusting one, and local microclimates, on what one yard in Saratoga can differ from the 82331 normal.