Delaware frost dates by county and ZIP code

Salt marsh grasses and tidal flats at Cape Henlopen, Delaware — Photo: Rhododendrites, CC BY-SA 4.0, via Wikimedia Commons

Across 68 Delaware ZIP codes the average last spring frost runs Mar 29 to Apr 19 and the average first fall frost Oct 26 to Nov 16 (50% odds, 32°F, NOAA 1991–2020 normals), with USDA hardiness zones. Download the table as CSV.

Counties

Kent
New Castle
Sussex

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