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First Freeze Map and Average First Frost Dates To get started, find where you live on the map above. It shows six different time periods, each spanning about a month from the end of June to the ...
Tropical cyclones normally threaten the states during the summer and fall, with their main impact being rainfall. [3] Although Hurricane Agnes was barely a hurricane at landfall in Florida, its major impact was over the Mid-Atlantic region, where Agnes combined with a non-tropical low to produce widespread rains of 6 inches (150 mm) to 12 inches (300 mm) with local amounts up to 19 inches (480 ...
Allentown, Pennsylvania, the largest city in the Lehigh Valley, third-largest city in Pennsylvania, and county seat of Lehigh County, May 2010. The climate of Allentown, Pennsylvania is classified as a humid continental climate (Köppen Dfa).
According to National Weather Service climate data, the average last frost date for final frost in Columbus is April 18, although it is more likely the final date will be around May 5, according ...
Find out when the first frost of fall 2022 is coming to your part of Kentucky, and prepare while you can. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290 ...
For practical purposes, Canada has adopted the American hardiness zone classification system. The 1990 version of the USDA Plant Hardiness Zone Map included Canada and Mexico, but they were removed with the 2012 update to focus on the United States and Puerto Rico. [8] The Canadian government publishes both Canadian and USDA-style zone maps. [37]
The maximum frost depth observed in the contiguous United States ranges from 0 to 8 feet (2.4 m). [1] Below that depth, the temperature varies, but is always above 0 °C (32 °F). Alternatively, in Arctic and Antarctic locations the freezing depth is so deep that it becomes year-round permafrost , and the term " thaw depth " is used instead.
Since 1981, the wettest calendar day has been 6.35 inches (161 mm), on October 8, 2005. During the winter months, the plant hardiness zone is 6b, with an average annual extreme minimum air temperature of −4.8 °F (−20 °C). [27] Since 1981, the coldest air temperature has been −18.1 °F (−28 °C), on January 21, 1994.