Newport, OR 97366 Frost Dates
Newport, OR: when does the frost end?
Around 03/21 is the usual last spring frost, about 205 days away. Fall's first freeze usually shows up around 11/27, roughly 252 days after the last spring frost.
Newport sits in USDA Zone 9b (25 to 30°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 13 weeks until Newport's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Newport's last frost
03/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Newport against the rest of the dataset
At roughly 252 frost-free days, Newport places 7,220 of 40,283 ZIP codes in this dataset. Within OR, it ranks 50 of 463.
Learn more
Before leaning on 97366's figures: the frost range explains how to read the range around Newport's dates instead of trusting one, while local microclimates explains what one yard in Newport can differ from the 97366 normal.