Carnation, WA 98014 Frost Dates
Carnation, WA: when does the frost end?
Around 03/30 is the usual last spring frost, about 214 days away. Fall's first freeze usually shows up around 11/07, roughly 223 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Carnation 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 10 weeks until Carnation'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
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Carnation against the rest of the dataset
At roughly 223 frost-free days, Carnation places 12,071 of 40,283 ZIP codes in this dataset. Within WA, it ranks 234 of 700.
Learn more
Before leaning on 98014's figures: zone vs. frost date explains why Zone 8b and Carnation's frost date answer different questions, while the frost range explains how to read the range around Carnation's dates instead of trusting one.