Bellevue, ID 83313 Frost Dates
83313, near Bellevue, ID: the frost window
Around 06/16 is the usual last spring frost, about 292 days away. Fall's first freeze usually shows up around 09/09, roughly 85 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bellevue in Zone 5b (-15 to -10°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
Bellevue's growing season runs out in roughly 2 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
06/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 06/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/30 and only about 1 year in 10 sees frost after that.
Bellevue against the rest of the dataset
Bellevue's growing season runs about 85 days, ranking 39,985 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 273 of 320.
Learn more
Two guides worth reading on 83313: the frost range, on how to read the range around Bellevue's dates instead of trusting one, and local microclimates, on what one yard in Bellevue can differ from the 83313 normal.