Milwaukie, OR 97206 Frost Dates
Milwaukie, OR: when does the frost end?
The last spring frost here typically falls around 03/13, about 197 days from today. Fall's first freeze usually shows up around 11/19, roughly 247 days after the last spring frost.
Milwaukie sits in USDA Zone 9a (20 to 25°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 12 weeks until Milwaukie's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/01 and only about 1 year in 10 sees frost after that.
Milwaukie against the rest of the dataset
About 247 days separate Milwaukie's last and first frost, putting it 7,801 of 40,283 ZIP codes nationally. Within OR, it ranks 94 of 463.
Learn more
Before leaning on 97206's figures: local microclimates explains what one yard in Milwaukie can differ from the 97206 normal, while zone vs. frost date explains why Zone 9a and Milwaukie's frost date answer different questions.