File name: Average-Date-of-Last-Spring-Freeze-1991-2020-Normals-legend_upd.jpg
Original Resolution: 1240 × 200
File Size: 66 KB (MIME Type: image/jpeg)
Click the dots to see the average date on which the chance of freezing temperatures drops below 50 percent across the United States, based on the U.S. Climate Normals from 1991–2020. (Launch the map in its own window.) Places where that date occurs near the official start of spring are colored white. Places where the last freezing date occurs before the start of spring on average are in the shades of purple, and places where the last spring freeze occurs after the start of spring on average are colored green. Map by Climate.gov, based on data provided by NOAA National Centers for Environmental Information.