Conconully, WA 98819 Frost Dates
98819, near Conconully, WA: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/07, roughly 160 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Conconully 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
Conconully's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Conconully's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Conconully against the rest of the dataset
At roughly 160 frost-free days, Conconully places 32,527 of 40,283 ZIP codes in this dataset. Within WA, it ranks 573 of 700.
Learn more
Two guides worth reading on 98819: local microclimates, on what one yard in Conconully can differ from the 98819 normal, and zone vs. frost date, on why Zone 6b and Conconully's frost date answer different questions.