Kellogg, ID 83837 Frost Dates
83837, near Kellogg, ID: the frost window
The last spring frost here typically falls around 05/14, about 259 days from today. Fall's first freeze usually shows up around 09/26, roughly 131 days after the last spring frost.
Kellogg sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Kellogg's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/14 isn't a guarantee
05/14 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 06/03 and only about 1 year in 10 sees frost after that.
Kellogg against the rest of the dataset
At roughly 131 frost-free days, Kellogg places 38,275 of 40,283 ZIP codes in this dataset. Within ID, it ranks 172 of 320.
Learn more
Two guides worth reading on 83837: the frost range, on how to read the range around Kellogg's dates instead of trusting one, and local microclimates, on what one yard in Kellogg can differ from the 83837 normal.