Oakville, WA 98568 Frost Dates
98568, near Oakville, WA: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/14, roughly 169 days after the last spring frost.
Zone 8a (10 to 15°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 Oakville, not a forecast for this year.
Stretching the season past the first frost
Oakville'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 Oakville's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Oakville against the rest of the dataset
At roughly 169 frost-free days, Oakville places 29,536 of 40,283 ZIP codes in this dataset. Within WA, it ranks 530 of 700.
Learn more
Two guides worth reading on 98568: the frost range, on how to read the range around Oakville's dates instead of trusting one, and local microclimates, on what one yard in Oakville can differ from the 98568 normal.