Air Quality Testing in Lower Southampton, PA

According to the Köppen climate classification system, Lower Southampton Twp has a Hot-summer, Humid continental climate (Dfa). Dfa climates are characterized by at least one month having an average mean temperature ≤ 32.0 °F (0.0 °C), at least four months with an average mean temperature ≥ 50.0 °F (10.0 °C), at least one month with an average mean temperature ≥ 71.6 °F (22.0 °C) and no significant precipitation difference between seasons. Although most summer days are slightly humid in Lower Southampton Twp, episodes of heat and high humidity can occur with heat index values > 107 °F (42 °C). Since 1981, the highest air temperature was 102.8 °F (39.3 °C) on July 22, 2011, and the highest daily average mean dew point was 76.1 °F (24.5 °C) on August 13, 1999. The average wettest month is July which corresponds with the annual peak in thunderstorm activity. Since 1981, the wettest calendar day was 6.73 inches (171 mm) on August 27, 2011. During the winter months, the average annual extreme minimum air temperature is 1.1 °F (−17.2 °C). Since 1981, the coldest air temperature was −9.4 °F (−23.0 °C) on January 22, 1984. Episodes of extreme cold and wind can occur with wind chill values < −9 °F (−23 °C). The average annual snowfall (Nov-Apr) is between 24 inches (61 cm) and 30 inches (76 cm). Ice storms and large snowstorms depositing ≥ 12 inches (30 cm) of snow occur once every few years, particularly during nor’easters from December through February.