Cranston, RI 02919 Frost Dates
When can you plant in Cranston, RI?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. The first fall frost typically arrives around 10/30, about 199 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 Cranston, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Cranston before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 04/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cranston compares
Cranston's growing season runs about 199 days, ranking 17,996 of 40,283 US ZIP codes measured here, longest to shortest. Within RI, it ranks 33 of 79.
Learn more
zone vs. frost date covers why Zone 6b and Cranston's frost date answer different questions. the frost range covers how to read the range around Cranston's dates instead of trusting one.