Shelton, CT 06484 Frost Dates
Frost dates for Shelton, CT, ZIP 06484
Around 04/05 is the usual last spring frost, about 220 days away. The first fall frost typically arrives around 11/06, about 216 frost-free days later.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Shelton, not a forecast for this year.
What to do before the first frost
Zone 6b around Shelton has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Shelton's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shelton compares
Shelton's growing season runs about 216 days, ranking 13,723 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 25 of 391.
Learn more
zone vs. frost date explains why Zone 6b and Shelton's frost date answer different questions, and the frost range explains how to read the range around Shelton's dates instead of trusting one.