https://www.midatlanticrisa.org/data-tools/climate-data-tools/historical-change-freeze-warm.html
Historical Change in Date of Last Freeze and Date of First Warm Day | MARISA
This tool is an interactive map that provides county-level estimates of historic (1981–2019) annual dates of last frost, as well as dates of first 70°F and...
first warm dayhistorical changein datelastfreeze