Torrington, CT 01255 Frost Dates
When can you plant in Torrington, CT?
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/11, about 161 frost-free days later.
The USDA Plant Hardiness Zone Map puts Torrington in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 6 weeks of growing season left in Torrington before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Torrington compares
About 161 days separate Torrington's last and first frost, putting it 31,947 of 40,283 ZIP codes nationally. Within CT, it ranks 359 of 391.
Learn more
zone vs. frost date covers why Zone 6a and Torrington's frost date answer different questions. the frost range covers how to read the range around Torrington's dates instead of trusting one.