FrostDateCheck

Shelton, WA 98588 Frost Dates

Shelton, WA: when does the frost end?

Zone 8b

Around 03/24 is the usual last spring frost, about 208 days away. Fall's first freeze usually shows up around 11/15, roughly 235 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Shelton in Zone 8b (15 to 20°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

With roughly 11 weeks until Shelton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Shelton's last frost

03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.

Shelton against the rest of the dataset

At roughly 235 frost-free days, Shelton places 9,578 of 40,283 ZIP codes in this dataset. Within WA, it ranks 167 of 700.

Learn more

Before leaning on 98588's figures: the frost range explains how to read the range around Shelton's dates instead of trusting one, while local microclimates explains what one yard in Shelton can differ from the 98588 normal.