Battle Ground, WA 98606 Frost Dates
98606, near Battle Ground, WA: the frost window
Around 04/26 is the usual last spring frost, about 241 days away. Fall's first freeze usually shows up around 10/16, roughly 174 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Battle Ground 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
Battle Ground'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.
The actual range around Battle Ground's last frost
04/26 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 05/12 and only about 1 year in 10 sees frost after that.
Battle Ground against the rest of the dataset
At roughly 174 frost-free days, Battle Ground places 27,355 of 40,283 ZIP codes in this dataset. Within WA, it ranks 475 of 700.
Learn more
Two guides worth reading on 98606: local microclimates, on what one yard in Battle Ground can differ from the 98606 normal, and zone vs. frost date, on why Zone 8b and Battle Ground's frost date answer different questions.