Severe Storms and Heavy Rain the Mississippi Valley and Midwest; Widespread Heat in the Central US

Severe thunderstorms and showers have the potential for large hail, a few strong tornadoes, damaging winds with gusts over 75 mph, and localized flash flooding across parts of the Mid/Upper Mississippi Valley and Midwest. A widespread heat wave will continue across the Central U.S. and Midwest today. Fire weather concerns persist in the Southwest into the central Rockies and northern California. Read More >

Frost and Freeze Program Start Map

These graphics show the median dates of the last freeze in the spring (above) and the first freeze in the autumn (below).

You can see that the growing season in McKean County lasts from May 21st through October 1st, while the growing season in Lancaster County runs from April 11th through November 1st. Therefore, crops can generally grow for two months longer in Lancaster, PA versus in Bradford, PA.

Between these dates (in the warm-season), your National Weather Service Office in State College, PA will issue Frost Advisories (minimum temperatures between 33 and 36 degrees) and Freeze Warnings (minimum temperatures of 32 degrees or colder), as necessary.

First Freeze of the Autumn