Frost Dates for 98577 — Raymond, Washington

Half of springs at Raymond 2 S, WA see their last 32°F night by April 26; only one in ten is past it by April 1, and one in ten still has one after May 12. Planting tender crops after May 1 leaves a 30% risk of a frost on them, after May 5 20%, and after May 12 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 74% of the 113 Washington stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 17 in half of years, as early as October 1 one year in ten, and holds off past November 7 one year in ten. A hard freeze of 28°F follows 21 days later, around November 7; in spring the one-in-ten date for 28°F is April 22, 20 days before the 32°F one. The freeze-free season lasts 177 days in a typical year, shorter than at 60% of the 113 Washington stations; it reaches 206 days one year in ten and falls short of 150 one year in ten. On average 82 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 17 days longer, to about May 13, and return around September 30. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 33%.

August is the warmest month at Raymond 2 S, WA, averaging 73°F by day and 50°F at night; December is the coldest at 47°F and 32°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 87% of years and May still brings one in 31% of years.

Warmth for growing adds up to 1,397 growing degree days a year (base 50°F), fewer than at 96% of the 113 Washington stations. 27% of them (377) have built up by the end of June, and August adds the most, 360. Precipitation totals 83.5 inches a year, most in January (13.1") and least in July (0.9"); May to September bring 14% of it.

The nearest other station, Grayland, WA, 21 miles northwest of Raymond, has a last frost 28 days earlier (March 29), a first frost 21 days later (November 7), a season 47 days longer.

Measurable snow is rare here: only 4 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Raymond 2 S, WA, 2.7 miles away, so there is no typical first-snow date to plan around.

ZIP 98577 is 3 miles from Raymond 2 S, WA, which stands at 30 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 98577 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.