Rehoboth Beach, DE 19971 Frost Dates
Rehoboth Beach, DE: when does the frost end?
Around 03/29 is the usual last spring frost, about 213 days away. Fall's first freeze usually shows up around 11/14, roughly 231 days after the last spring frost.
Zone 8a (10 to 15°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 Rehoboth Beach, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Rehoboth Beach's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/29 isn't a guarantee
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Rehoboth Beach against the rest of the dataset
Rehoboth Beach's growing season runs about 231 days, ranking 10,226 of 40,283 US ZIP codes measured here, longest to shortest. Within DE, it ranks 3 of 96.
Learn more
Before leaning on 19971's figures: zone vs. frost date explains why Zone 8a and Rehoboth Beach's frost date answer different questions, while the frost range explains how to read the range around Rehoboth Beach's dates instead of trusting one.