Woonsocket, RI 02826 Frost Dates
Woonsocket, RI: when does the frost end?
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/09, roughly 162 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Woonsocket in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 6 weeks until Woonsocket's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Woonsocket against the rest of the dataset
Woonsocket's growing season runs about 162 days, ranking 31,615 of 40,283 US ZIP codes measured here, longest to shortest. Within RI, it ranks 70 of 79.
Learn more
Before leaning on 02826's figures: local microclimates explains what one yard in Woonsocket can differ from the 02826 normal, while zone vs. frost date explains why Zone 6b and Woonsocket's frost date answer different questions.