Fenwick, CT 06443 Frost Dates
06443, near Fenwick, CT: the frost window
Typically, the last spring freeze lands around 04/17, roughly 232 days out. Fall's first freeze usually shows up around 10/27, roughly 193 days after the last spring frost.
Fenwick 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
Fenwick'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 04/17 isn't a guarantee
04/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Fenwick against the rest of the dataset
About 193 days separate Fenwick's last and first frost, putting it 20,096 of 40,283 ZIP codes nationally. Within CT, it ranks 105 of 391.
Learn more
Two guides worth reading on 06443: the frost range, on how to read the range around Fenwick's dates instead of trusting one, and local microclimates, on what one yard in Fenwick can differ from the 06443 normal.