Frost/Freeze - Average Last Date During Spring

Here are the average last frost/freeze dates across the U.S. from 1980-81 to 2009-10. This information is courtesy of the National Oceanic and Atmospheric Administration.

Freeze protection equipment - see Freeze Miser and pipe that expands in freezing weathers is WIRSBO pipe.

From here: https://www.ncdc.noaa.gov/news/when-expect-your-last-spring-freeze

Click on the map below to go to the full size image file.

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