Cranston, RI 02921 Frost Dates
Cranston, RI: when does the frost end?
The last spring frost here typically falls around 04/11, about 226 days from today. Fall's first freeze usually shows up around 10/30, roughly 199 days after the last spring frost.
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 Cranston, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Cranston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/11 isn't a guarantee
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Cranston against the rest of the dataset
About 199 days separate Cranston's last and first frost, putting it 17,998 of 40,283 ZIP codes nationally. Within RI, it ranks 35 of 79.
Learn more
Before leaning on 02921's figures: the frost range explains how to read the range around Cranston's dates instead of trusting one, while local microclimates explains what one yard in Cranston can differ from the 02921 normal.