Weippe, ID 83553 Frost Dates
83553, near Weippe, ID: the frost window
The last spring frost here typically falls around 06/03, about 279 days from today. Fall's first freeze usually shows up around 09/07, roughly 93 days after the last spring frost.
Zone 6b (-5 to 0°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 Weippe, not a forecast for this year.
Stretching the season past the first frost
Weippe's growing season runs out in roughly 1 week — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 06/03 isn't a guarantee
06/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/29 and only about 1 year in 10 sees frost after that.
Weippe against the rest of the dataset
At roughly 93 frost-free days, Weippe places 39,878 of 40,283 ZIP codes in this dataset. Within ID, it ranks 265 of 320.
Learn more
Two guides worth reading on 83553: zone vs. frost date, on why Zone 6b and Weippe's frost date answer different questions, and the frost range, on how to read the range around Weippe's dates instead of trusting one.