From a Report by The USA’s NWS
Online — As we head further into the Northern Hemisphere’s spring, many people across the country are ready to put winter—and its cold and snow—behind them. But, even the spring months can have their cold spells.
So, when can we expect the cold to really be on its way out? Our “Day of the Last Spring Freeze” map, which is based on climatology, can help answer that question for your area.
Derived from the 1981–2010 U.S. Climate Normals—30-year averages of climatological variables like temperatures—this map shows the time of year, on average, that areas across the nation can expect to see their temperatures dip to 32 °F or below for the last time.
The map reveals some interesting regional differences across the country.
In the East, the last spring freeze date generally progresses through time as you move northward on the map.
In the West, the changes are much more complex due to elevation and coastal influences.
Visit the NWS webpage at: https://www.ncdc.noaa.gov/news/when-expect-your-last-spring-freeze for the full story and links.