Springdale, WA 99013 Frost Dates
Springdale, WA: when does the frost end?
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 09/26, roughly 137 days after the last spring frost.
Zone 6b (-5 to 0°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 Springdale, not a forecast for this year.
Stretching the season past the first frost
With roughly 4 weeks until Springdale'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
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Springdale against the rest of the dataset
At roughly 137 frost-free days, Springdale places 37,574 of 40,283 ZIP codes in this dataset. Within WA, it ranks 624 of 700.
Learn more
Before leaning on 99013's figures: local microclimates explains what one yard in Springdale can differ from the 99013 normal, while zone vs. frost date explains why Zone 6b and Springdale's frost date answer different questions.