Madras, OR 97741 Frost Dates
97741, near Madras, OR: the frost window
The last spring frost here typically falls around 05/19, about 264 days from today. Fall's first freeze usually shows up around 10/04, roughly 136 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Madras in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Madras's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/19 isn't a guarantee
05/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/07 and only about 1 year in 10 sees frost after that.
Madras against the rest of the dataset
About 136 days separate Madras's last and first frost, putting it 37,666 of 40,283 ZIP codes nationally. Within OR, it ranks 380 of 463.
Learn more
Two guides worth reading on 97741: zone vs. frost date, on why Zone 7a and Madras's frost date answer different questions, and the frost range, on how to read the range around Madras's dates instead of trusting one.