Frost Dates for 97365 — Newport, Oregon

Half of springs at Newport, OR see their last 32°F night by March 21; only one in ten is past it by February 11, and one in ten still has one after April 12. Planting tender crops after April 1 leaves a 30% risk of a frost on them, after April 5 20%, and after April 12 10%. The 22 days between the even-odds date and the one-in-ten date is narrower than at 45% of the 103 Oregon 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 27 in half of years, as early as November 1 one year in ten, and holds off past December 28 one year in ten. A hard freeze of 28°F follows 25 days later, around December 22; in spring the one-in-ten date for 28°F is March 11, 32 days before the 32°F one. The freeze-free season lasts 252 days in a typical year, longer than at 89% of the 103 Oregon stations; it reaches 297 days one year in ten and falls short of 215 one year in ten. On average 13 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 30 days longer, to about April 20, and return around November 1. A 24°F night is unusual: 34% of winters had one.

August is the warmest month at Newport, OR, averaging 64°F by day and 52°F at night; December is the coldest at 50°F and 39°F. From May to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 76% of years and March still brings one in 62% of years and April still brings one in 30% of years.

Warmth for growing adds up to 1,089 growing degree days a year (base 50°F), fewer than at 99% of the 103 Oregon stations. 27% of them (290) have built up by the end of June, and August adds the most, 253. Precipitation totals 67.2 inches a year, most in December (11.6") and least in July (0.6"); May to September bring 13% of it.

The nearest other station, Newport 1 SE, OR, 2 miles south of Newport, has a last frost 30 days earlier (February 19), a first frost 19 days later (December 16), a season 54 days longer.

Measurable snow is rare here: only 3 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Newport, OR, 0.5 miles away, so there is no typical first-snow date to plan around.

ZIP 97365 is under a mile from Newport, OR, which stands at 122 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 97365 in zone 9b, the band where the coldest night of the year averaged 25 to 30°F (-3.9 to -1.1°C) over 1991–2020; a zone describes winter lows, not frost dates.