Concrete, WA 98283 Frost Dates
Concrete, WA: when does the frost end?
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/25, roughly 192 days after the last spring frost.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Concrete, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Concrete's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Concrete against the rest of the dataset
Concrete's growing season runs about 192 days, ranking 20,496 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 399 of 700.
Learn more
Before leaning on 98283's figures: the frost range explains how to read the range around Concrete's dates instead of trusting one, while local microclimates explains what one yard in Concrete can differ from the 98283 normal.