Moyie Springs, ID 83845 Frost Dates
83845, near Moyie Springs, ID: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/04, roughly 154 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Moyie Springs 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
Moyie Springs's growing season runs out in roughly 5 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
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.
Moyie Springs against the rest of the dataset
At roughly 154 frost-free days, Moyie Springs places 34,368 of 40,283 ZIP codes in this dataset. Within ID, it ranks 104 of 320.
Learn more
Two guides worth reading on 83845: the frost range, on how to read the range around Moyie Springs's dates instead of trusting one, and local microclimates, on what one yard in Moyie Springs can differ from the 83845 normal.