Shelton, CT 06491 Frost Dates
When can you plant in Shelton, CT?
The last spring frost here typically falls around 04/20, about 235 days from today. The first fall frost typically arrives around 10/20, about 181 frost-free days later.
Shelton sits in USDA Zone 6b (-5 to 0°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.
What to do before the first frost
About 8 weeks of growing season left in Shelton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Shelton's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shelton compares
Shelton's growing season runs about 181 days, ranking 24,438 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 246 of 391.
Learn more
zone vs. frost date covers why Zone 6b and Shelton's frost date answer different questions. the frost range covers how to read the range around Shelton's dates instead of trusting one.