Reporting
I have lived in central
I have lived in central Maryland most of my life. First light frost can occur anytime between September. 25 and as late as the second week of November, . Microclimate plays a tools here, there are a lot of October nights where temperatures drop into the 30's under clear skies and light winds. Low lying areas often frost before areas on high ground. Laurel and Fort Meade are often colder than Mount Airy.