Waterbury, CT 06716 Frost Dates
When can you plant in Waterbury, CT?
The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/16, about 175 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 Waterbury, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Waterbury before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Waterbury's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Waterbury compares
About 175 days separate Waterbury's last and first frost, putting it 26,709 of 40,283 ZIP codes nationally. Within CT, it ranks 289 of 391.
Learn more
the frost range covers how to read the range around Waterbury's dates instead of trusting one. local microclimates covers what one yard in Waterbury can differ from the 06716 normal.