<P> Unlike the vast majority of the state, New York City features a humid subtropical climate (Koppen Cfa). New York City is an urban heat island, with temperatures 5--7 degrees Fahrenheit (3--4 degrees Celsius) warmer overnight than surrounding areas . In an effort to fight this warming, roofs of buildings are being painted white across the city in an effort to increase the reflection of solar energy, or albedo . </P> <P> In both Huntington and Ticonderoga, the average high July temperature is about 27 ° C, the latter much further north, but in the former on Long Island, summer air is cooled by the surrounding ocean . The summer climate is cooler in the Adirondacks, Catskills and higher elevations of the Southern Plateau due to the elevated terrain . The New York City area and lower portions of the Hudson Valley in contrast have much more sultry and tropical summers with frequent bouts of hot temperatures and high dew points . The remainder of New York State enjoys modestly warm summers . Summer temperatures usually range from the upper 70s to mid 80s ° F (25 to 30 ° C), over much of the state . The record high for New York state is 108 ° F (42 ° C), set at Troy on July 22, 1926 . </P> <P> Winters are often cold and snowy above the New York City and Long Island areas of New York . In the majority of winter seasons, a temperature of − 13 ° F (− 25 ° C) or lower can be expected in the northern highlands (Northern Plateau) and 0 ° F (− 18 ° C) or colder in the southwestern and east - central highlands (Southern Plateau). The Adirondack region records from 35 to 45 days with below zero temperatures, in normal to severe winters . Winters are also long and cold in both Western and Central New York, though not as cold as the Adirondack region due to the warming influence of the Great Lakes . The New York City metro area, in comparison to the rest of the state, is milder in the winter (especially in the city itself, which averages several degrees above freezing). The record low for New York state is − 52 ° F (− 47 ° C), set at Stillwater Reservoir on February 9, 1934 and at Old Forge on February 18, 1979 . In February 2015, Rochester experienced its coldest month ever, with an average temperature of 12.2 ° F (− 11 ° C); while later that year had a near - record warm November and a record - breaking December . The latter month was about 12 degrees F warmer than average, and several degrees over the previous record . </P> <Table> <Tr> <Th> Event </Th> <Th> Measurement </Th> <Th> Date </Th> <Th> Location </Th> <Th> County </Th> </Tr> <Tr> <Td> Highest temperature </Td> <Td> 108 ° F (42.2 ° C) </Td> <Td> July 22, 1926 </Td> <Td> Troy </Td> <Td> Rensselaer </Td> </Tr> <Tr> <Td> Lowest temperature </Td> <Td> − 52 ° F (− 46.7 ° C) </Td> <Td> February 18, 1979 </Td> <Td> Old Forge </Td> <Td> Herkimer </Td> </Tr> <Tr> <Td> Lowest temperature </Td> <Td> − 52 ° F (− 46.7 ° C) </Td> <Td> February 9, 1934 </Td> <Td> Stillwater Reservoir </Td> <Td> Herkimer </Td> </Tr> </Table>

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