Inkom, ID 83245 Frost Dates
83245, near Inkom, ID: the frost window
The last spring frost here typically falls around 05/23, about 268 days from today. Fall's first freeze usually shows up around 09/24, roughly 121 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Inkom in Zone 6a (-10 to -5°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
Inkom's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/10 and only about 1 year in 10 sees frost after that.
Inkom against the rest of the dataset
Inkom's growing season runs about 121 days, ranking 39,024 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 205 of 320.
Learn more
Two guides worth reading on 83245: local microclimates, on what one yard in Inkom can differ from the 83245 normal, and zone vs. frost date, on why Zone 6a and Inkom's frost date answer different questions.