Scobey, MT 59263 Frost Dates
Scobey, MT: when does the frost end?
Typically, the last spring freeze lands around 05/28, roughly 273 days out. Fall's first freeze usually shows up around 09/06, roughly 99 days after the last spring frost.
Zone 3b (-35 to -30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Scobey, not a forecast for this year.
Stretching the season past the first frost
With roughly 1 week until Scobey's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Scobey's last frost
05/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/13 and only about 1 year in 10 sees frost after that.
Scobey against the rest of the dataset
About 99 days separate Scobey's last and first frost, putting it 39,736 of 40,283 ZIP codes nationally. Within MT, it ranks 314 of 392.
Learn more
Before leaning on 59263's figures: the frost range explains how to read the range around Scobey's dates instead of trusting one, while local microclimates explains what one yard in Scobey can differ from the 59263 normal.