Delaware City, DE 19712 Frost Dates
When can you plant in Delaware City, DE?
The last spring frost here typically falls around 04/07, about 222 days from today. The first fall frost typically arrives around 11/01, about 209 frost-free days later.
Delaware City 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.
What to do before the first frost
About 9 weeks of growing season left in Delaware City 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
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/26 and you're betting against frost in roughly 9 years out of 10. 04/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Delaware City compares
Delaware City's growing season runs about 209 days, ranking 15,266 of 40,283 US ZIP codes measured here, longest to shortest. Within DE, it ranks 52 of 96.
Learn more
local microclimates covers what one yard in Delaware City can differ from the 19712 normal. zone vs. frost date covers why Zone 7b and Delaware City's frost date answer different questions.