Madras, OR 97761 Frost Dates
Madras, OR: when does the frost end?
Around 05/05 is the usual last spring frost, about 250 days away. Fall's first freeze usually shows up around 10/07, roughly 154 days after the last spring frost.
Madras sits in USDA Zone 7a (0 to 5°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 6 weeks until Madras's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Madras's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/29 and only about 1 year in 10 sees frost after that.
Madras against the rest of the dataset
About 154 days separate Madras's last and first frost, putting it 34,259 of 40,283 ZIP codes nationally. Within OR, it ranks 345 of 463.
Learn more
Before leaning on 97761's figures: zone vs. frost date explains why Zone 7a and Madras's frost date answer different questions, while the frost range explains how to read the range around Madras's dates instead of trusting one.