Entiat, WA 98807 Frost Dates
Entiat, WA: when does the frost end?
Typically, the last spring freeze lands around 05/22, roughly 267 days out. Fall's first freeze usually shows up around 09/22, roughly 121 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Entiat in Zone 7b (5 to 10°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 4 weeks until Entiat's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Entiat's last frost
05/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/13 and only about 1 year in 10 sees frost after that.
Entiat against the rest of the dataset
At roughly 121 frost-free days, Entiat places 39,020 of 40,283 ZIP codes in this dataset. Within WA, it ranks 652 of 700.
Learn more
Before leaning on 98807's figures: zone vs. frost date explains why Zone 7b and Entiat's frost date answer different questions, while the frost range explains how to read the range around Entiat's dates instead of trusting one.