Northville, NY 12134 Frost Dates
12134, near Northville, NY: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/16, roughly 169 days after the last spring frost.
Northville sits in USDA Zone 5a (-20 to -15°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
Northville's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Northville against the rest of the dataset
About 169 days separate Northville's last and first frost, putting it 29,510 of 40,283 ZIP codes nationally. Within NY, it ranks 820 of 1,951.
Learn more
Two guides worth reading on 12134: local microclimates, on what one yard in Northville can differ from the 12134 normal, and zone vs. frost date, on why Zone 5a and Northville's frost date answer different questions.