Marsing, ID 83653 Frost Dates
83653, near Marsing, ID: the frost window
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/09, roughly 169 days after the last spring frost.
Zone 7a (0 to 5°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 Marsing, not a forecast for this year.
Stretching the season past the first frost
Marsing's growing season runs out in roughly 6 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
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Marsing against the rest of the dataset
About 169 days separate Marsing's last and first frost, putting it 29,496 of 40,283 ZIP codes nationally. Within ID, it ranks 62 of 320.
Learn more
Two guides worth reading on 83653: zone vs. frost date, on why Zone 7a and Marsing's frost date answer different questions, and the frost range, on how to read the range around Marsing's dates instead of trusting one.