Eagle, ID 83616 Frost Dates
83616, near Eagle, ID: the frost window
Around 05/17 is the usual last spring frost, about 262 days away. Fall's first freeze usually shows up around 10/12, roughly 147 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 Eagle, not a forecast for this year.
Stretching the season past the first frost
Eagle'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
05/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 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.
Eagle against the rest of the dataset
At roughly 147 frost-free days, Eagle places 35,855 of 40,283 ZIP codes in this dataset. Within ID, it ranks 130 of 320.
Learn more
Two guides worth reading on 83616: zone vs. frost date, on why Zone 7a and Eagle's frost date answer different questions, and the frost range, on how to read the range around Eagle's dates instead of trusting one.