About FrostDateFinder

FrostDateFinder turns NOAA's official 1991–2020 U.S. Climate Normals into plain-English frost dates and planting calendars. Each city is matched to a major NOAA weather station nearby, which is named on the city page, so you can check the source.

Planting offsets come from Oregon State University Extension's seed-starting table. The site is built and maintained with the help of automated tools and is reviewed by its owner.

Corrections

A contact address will be published here when the site moves to its own domain.