FrostDateCheck

Quincy, WA 98845 Frost Dates

98845, near Quincy, WA: the frost window

Zone 7a

Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/16, roughly 178 days after the last spring frost.

Quincy sits in USDA Zone 7a (0 to 5°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

Quincy's growing season runs out in roughly 7 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

04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.

Quincy against the rest of the dataset

Quincy's growing season runs about 178 days, ranking 25,658 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 446 of 700.

Learn more

Two guides worth reading on 98845: the frost range, on how to read the range around Quincy's dates instead of trusting one, and local microclimates, on what one yard in Quincy can differ from the 98845 normal.