FrostDateCheck

Jewett City, CT 06250 Frost Dates

Jewett City, CT: when does the frost end?

Zone 6b

Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/13, roughly 167 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

With roughly 7 weeks until Jewett City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Jewett City's last frost

04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 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

At roughly 167 frost-free days, Jewett City places 29,979 of 40,283 ZIP codes in this dataset. Within CT, it ranks 347 of 391.

Learn more

Before leaning on 06250's figures: zone vs. frost date explains why Zone 6b and Jewett City's frost date answer different questions, while the frost range explains how to read the range around Jewett City's dates instead of trusting one.