Arden, DE 19060 Frost Dates
Arden, DE: when does the frost end?
Typically, the last spring freeze lands around 04/07, roughly 222 days out. Fall's first freeze usually shows up around 11/04, roughly 209 days after the last spring frost.
Arden sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 10 weeks until Arden's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Arden's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Arden against the rest of the dataset
Arden's growing season runs about 209 days, ranking 15,384 of 40,283 US ZIP codes measured here, longest to shortest. Within DE, it ranks 81 of 96.
Learn more
Before leaning on 19060's figures: local microclimates explains what one yard in Arden can differ from the 19060 normal, while zone vs. frost date explains why Zone 7b and Arden's frost date answer different questions.