According to the Köppen climate classification system, West Rockhill Township, Pennsylvania has a hot-summer, wet all year, 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. During the summer months, episodes of extreme heat and humidity can occur with heat index values ≥ 100 °F (≥ 38 °C). On average, the wettest month of the year is July which corresponds with the annual peak in thunderstorm activity. During the winter months, episodes of extreme cold and wind can occur with wind chill values < 0 °F (< -18 °C). The plant hardiness zone is 6b with an average annual extreme minimum air temperature of -1.6 °F (-18.7 °C). The average seasonal (Nov-Apr) snowfall total is between 30 and 36 inches (76 and 91 cm), and the average snowiest month is February which corresponds with the annual peak in nor'easter activity.
according to the köppen climate classification system west rockhill township pennsylvania has a hot-summer wet all year humid continental climate (dfa) dfa climates are characterized by at least one month having an average mean temperature ≤ 320 °f (≤ 00 °c) at least four months with an average mean temperature ≥ 500 °f (≥ 100 °c) at least one month with an average mean temperature ≥ 716 °f (≥ 220 °c) and no significant precipitation difference between seasons during the summer months episodes of extreme heat and humidity can occur with heat index values ≥ 100 °f (≥ 38 °c) on average the wettest month of the year is july which corresponds with the annual peak in thunderstorm activity during the winter months episodes of extreme cold and wind can occur with wind chill values < 0 °f (< -18 °c) the plant hardiness zone is 6b with an average annual extreme minimum air temperature of -16 °f (-187 °c) the average seasonal (nov-apr) snowfall total is between 30 and 36 inches (76 and 91 cm) and the average snowiest month is february which corresponds with the annual peak in nor'easter activity