Frost Dates for 98548 — Hoodsport, Washington

Half of springs at Cushman Powerhouse #2, WA see their last 32°F night by March 24; only one in ten is past it by February 26, and one in ten still has one after April 17. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 9 20%, and after April 17 10%. The 24 days between the even-odds date and the one-in-ten date is wider than at 86% of the 113 Washington stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 15 in half of years, as early as October 25 one year in ten, and holds off past December 8 one year in ten. A hard freeze of 28°F follows 22 days later, around December 7; in spring the one-in-ten date for 28°F is March 17, 31 days before the 32°F one. The freeze-free season lasts 235 days in a typical year, longer than at 85% of the 113 Washington stations; it reaches 269 days one year in ten and falls short of 207 one year in ten. On average 46 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 29 days longer, to about April 22, and return around October 28. Nights of 24°F, cold enough to damage hardier plants, come in 66% of winters and 16°F in 1%.

July is the warmest month at Cushman Powerhouse #2, WA, averaging 76°F by day and 54°F at night; December is the coldest at 44°F and 35°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 80% of years and April still brings one in 32% of years.

Warmth for growing adds up to 1,831 growing degree days a year (base 50°F), fewer than at 65% of the 113 Washington stations. 29% of them (537) have built up by the end of June, and July adds the most, 459. Precipitation totals 91.9 inches a year, most in December (16.2") and least in July (0.9"); May to September bring 11% of it.

The nearest other station, Shelton Sanderson Field, WA, 15 miles south of Hoodsport and 250 feet higher, has a last frost 34 days later (April 27), a first frost 30 days earlier (October 16), a season 60 days shorter.

Measurable snow is rare here: only 9 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Cushman Powerhouse #2, WA, 5.8 miles away, so there is no typical first-snow date to plan around.

ZIP 98548 is 6 miles from Cushman Powerhouse #2, WA, which stands at 21 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 98548 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.