Danielson, CT 02827 Frost Dates
02827, near Danielson, CT: the frost window
Around 04/11 is the usual last spring frost, about 226 days away. Fall's first freeze usually shows up around 10/30, roughly 199 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 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/11 isn't a guarantee
04/11 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 04/23 and only about 1 year in 10 sees frost after that.
Danielson against the rest of the dataset
About 199 days separate Danielson's last and first frost, putting it 18,101 of 40,283 ZIP codes nationally. Within CT, it ranks 44 of 391.
Learn more
Two guides worth reading on 02827: zone vs. frost date, on why Zone 6b and Danielson's frost date answer different questions, and the frost range, on how to read the range around Danielson's dates instead of trusting one.