Milton, DE 19951 Frost Dates
Milton, DE: when does the frost end?
Typically, the last spring freeze lands around 04/04, roughly 219 days out. Fall's first freeze usually shows up around 11/06, roughly 217 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Milton in Zone 7b (5 to 10°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 10 weeks until Milton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Milton's last frost
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Milton against the rest of the dataset
At roughly 217 frost-free days, Milton places 13,474 of 40,283 ZIP codes in this dataset. Within DE, it ranks 10 of 96.
Learn more
Before leaning on 19951's figures: zone vs. frost date explains why Zone 7b and Milton's frost date answer different questions, while the frost range explains how to read the range around Milton's dates instead of trusting one.