Tensed, ID 83824 Frost Dates
83824, near Tensed, ID: the frost window
Around 05/15 is the usual last spring frost, about 260 days away. Fall's first freeze usually shows up around 09/21, roughly 126 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Tensed in Zone 6b (-5 to 0°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
Tensed's growing season runs out in roughly 3 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
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/02 and only about 1 year in 10 sees frost after that.
Tensed against the rest of the dataset
At roughly 126 frost-free days, Tensed places 38,734 of 40,283 ZIP codes in this dataset. Within ID, it ranks 196 of 320.
Learn more
Two guides worth reading on 83824: zone vs. frost date, on why Zone 6b and Tensed's frost date answer different questions, and the frost range, on how to read the range around Tensed's dates instead of trusting one.