Jewett City, CT 02898 Frost Dates
02898, near Jewett City, CT: the frost window
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/15, roughly 171 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Jewett City in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Jewett City's growing season runs out in roughly 7 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 Jewett City's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Jewett City against the rest of the dataset
About 171 days separate Jewett City's last and first frost, putting it 28,642 of 40,283 ZIP codes nationally. Within CT, it ranks 332 of 391.
Learn more
Two guides worth reading on 02898: zone vs. frost date, on why Zone 6b and Jewett City's frost date answer different questions, and the frost range, on how to read the range around Jewett City's dates instead of trusting one.