Climate Under the Köppen climate classification, Lancaster falls within either a hot-summer humid continental climate (Dfa) if the isotherm is used or a humid subtropical climate (Cfa) if the isotherm is used. The hottest recorded temperature in the city was on August 7, 1918, while the coldest recorded temperature was on January 22, 1984. On average, the city receives 42 inches of precipitation a year. September is the wettest month of the year and February the driest. The snowiest winter on record for Lancaster was the winter of 2009-10 when 72 inches of snow fell and the smallest amount of snow on record was when four inches fell during the winter of 1949–50. The highest recorded January temperature was on January 26, 1950, and the coldest July temperature on July 4, 1918.
Climate Under the Köppen climate classification Lancaster falls within either a hot-summer humid continental climate (Dfa) if the isotherm is used or a humid subtropical climate (Cfa) if the isotherm is used The hottest recorded temperature in the city was on August 7 1918 while the coldest recorded temperature was on January 22 1984 On average the city receives 42 inches of precipitation a year September is the wettest month of the year and February the driest The snowiest winter on record for Lancaster was the winter of 2009-10 when 72 inches of snow fell and the smallest amount of snow on record was when four inches fell during the winter of 1949–50 The highest recorded January temperature was on January 26 1950 and the coldest July temperature on July 4 1918