Fenwick, CT 06498 Frost Dates
06498, near Fenwick, CT: the frost window
Typically, the last spring freeze lands around 04/06, roughly 221 days out. Fall's first freeze usually shows up around 11/17, roughly 221 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 12 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 Fenwick's last frost
04/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Fenwick against the rest of the dataset
Fenwick's growing season runs about 221 days, ranking 12,623 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 7 of 391.
Learn more
Two guides worth reading on 06498: 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 06498 normal.