Danielson, CT 06373 Frost Dates
06373, near Danielson, CT: the frost window
Typically, the last spring freeze lands around 04/14, roughly 229 days out. Fall's first freeze usually shows up around 10/24, roughly 192 days after the last spring frost.
Danielson 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
Danielson'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.
Why 04/14 isn't a guarantee
04/14 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 04/30 and only about 1 year in 10 sees frost after that.
Danielson against the rest of the dataset
Danielson's growing season runs about 192 days, ranking 20,300 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 118 of 391.
Learn more
Two guides worth reading on 06373: local microclimates, on what one yard in Danielson can differ from the 06373 normal, and zone vs. frost date, on why Zone 6b and Danielson's frost date answer different questions.