Millbrook, NY 12604 Frost Dates
12604, near Millbrook, NY: the frost window
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/07, roughly 155 days after the last spring frost.
Millbrook sits in USDA Zone 6b (-5 to 0°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
Millbrook's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/04 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 05/21 and only about 1 year in 10 sees frost after that.
Millbrook against the rest of the dataset
About 155 days separate Millbrook's last and first frost, putting it 34,023 of 40,283 ZIP codes nationally. Within NY, it ranks 1,395 of 1,951.
Learn more
Two guides worth reading on 12604: local microclimates, on what one yard in Millbrook can differ from the 12604 normal, and zone vs. frost date, on why Zone 6b and Millbrook's frost date answer different questions.