Danielson, CT 06233 Frost Dates
When can you plant in Danielson, CT?
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/09, about 161 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 Danielson, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Danielson before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Danielson's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/20 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 Danielson compares
Danielson's growing season runs about 161 days, ranking 32,031 of 40,283 US ZIP codes measured here, longest to shortest. Within CT, it ranks 366 of 391.
Learn more
local microclimates covers what one yard in Danielson can differ from the 06233 normal. zone vs. frost date covers why Zone 6b and Danielson's frost date answer different questions.