Davenport, WA 99122 Frost Dates
When can you plant in Davenport, WA?
Typically, the last spring freeze lands around 06/06, roughly 282 days out. The first fall frost typically arrives around 09/11, about 94 frost-free days later.
The USDA Plant Hardiness Zone Map puts Davenport in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 2 weeks of growing season left in Davenport before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 06/06 isn't a guarantee
06/06 is the middle of 30 years of NOAA records, not a promise. Plant by 05/13 and you're betting against frost in roughly 9 years out of 10. 07/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Davenport compares
About 94 days separate Davenport's last and first frost, putting it 39,831 of 40,283 ZIP codes nationally. Within WA, it ranks 686 of 700.
Learn more
zone vs. frost date covers why Zone 6b and Davenport's frost date answer different questions. the frost range covers how to read the range around Davenport's dates instead of trusting one.