Torrington, CT 06059 Frost Dates
06059, near Torrington, CT: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/17, roughly 168 days after the last spring frost.
Torrington sits in USDA Zone 6a (-10 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
Torrington'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.
How much risk comes with planting early here
04/30 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 05/15 and only about 1 year in 10 sees frost after that.
Torrington against the rest of the dataset
Torrington's growing season runs about 168 days, ranking 29,663 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 334 of 391.
Learn more
Two guides worth reading on 06059: local microclimates, on what one yard in Torrington can differ from the 06059 normal, and zone vs. frost date, on why Zone 6a and Torrington's frost date answer different questions.