Frost dates · Delaware
Delaware frost dates, county by county.
Last spring frost and first fall frost probability data for all 3 counties in Delaware, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.
By geography
Delaware counties on the map.
Each polygon is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.
MapList
Last spring frostEarliestMedianLatest
3 counties · click any county for full frost data