New Haven, KY 40051 Frost Dates
40051, near New Haven, KY: the frost window
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/25, roughly 191 days after the last spring frost.
New Haven 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
New Haven's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around New Haven's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
New Haven against the rest of the dataset
New Haven's growing season runs about 191 days, ranking 20,847 of 40,283 US ZIP codes measured here, longest to shortest. Within KY, it ranks 506 of 909.
Learn more
Two guides worth reading on 40051: local microclimates, on what one yard in New Haven can differ from the 40051 normal, and zone vs. frost date, on why Zone 7a and New Haven's frost date answer different questions.