Frost Dates by City: Last Spring and First Fall Frost in 100 U.S. Cities

Each page below gives one city its own frost dates, read from the NOAA weather station nearest its center: the last spring frost and first fall frost at even odds, the late spring and early fall dates that one year in ten passes, the length of the frost-free season, and planting dates counted from them. Your own town is not here? Use the frost dates tool, which covers 7,247 stations, or look up your hardiness zone by ZIP code.

How these cities were chosen

We ranked the incorporated places of the 50 states and D.C. by the Census Bureau's Vintage 2024 population estimate and walked down the list, keeping a city only when its page could meet the same bar as every other page on the site. A city needs a NOAA station with a standard or representative record within 25 miles of its Census internal point (flag S or R); that station must have frost dates and a typical-year frost; and no larger city may already use it, since two pages on one station would differ only by a name. The walk stopped at 100 cities on 100 different stations, and 23 places were passed over on the way.