Yanayi na Pennsylvania

yanayin Pennsylvania ya bambanta saboda ɗimbin fasalulluka da aka samu a cikin jihar.  Matsala manyan yankuna biyu na sauyin yanayi, kusurwar kudu maso gabas na Pennsylvania yana da yanayi mafi zafi.  Wani yanki na Greater Philadelphia ya ta'allaka ne a iyakar kudu maso yammacin yankin yanayin yanayi mai ɗanɗano, tare da kasancewar birnin yana cikin yankin yanayi mai ɗanɗano.  Duk da haka, Philadelphia yana da sanyi, lokacin sanyi fiye da yawancin wurare tare da yanayi mai zafi.  Komawa yamma zuwa cikin tsaunuka na jihar, yanayin ya zama sanyi sosai, adadin kwanakin girgije yana ƙaruwa. kuma yawan dusar ƙanƙara na hunturu ya fi girma.

Yin amfani da isotherm mai daskarewa na Janairu, Yanayin zafi mai zafi (Cfa) kawai ya wanzu a wasu sassan Greater Philadelphia da ƙananan yankuna na ƙananan Susquehanna Valley daga Harrisburg downriver. Yankin tsayayyar Pennsylvania ya kasance daga 5a a cikin manyan wurare zuwa 7b a wasu sassan Delaware da Philadelphia Counties.

 Ruwan sama 
Yankunan yammacin jihar, musamman biranen da ke kusa da tafkin Erie, na iya samun sama da inci 100 (254 cm) na dusar ƙanƙara a shekara, kuma duk jihar tana samun matsakaicin inci 41 (1,041 mm) na ruwan sama a kowace shekara.  Ana samun yawaitar ambaliya a watan Maris da Afrilu fiye da sauran watanni na shekarashekara. 

 Guguwa mai zafi 
Guguwar iska mai zafi ta kan yi barazana ga jihohin a lokacin bazara da damina, babban tasirinsu shi ne ruwan sama.[3]  Kodayake guguwar Agnes da kyar ta kasance mahaukaciyar guguwa a fadowar kasa a Florida, babban tasirinta ya kasance a kan yankin tsakiyar Atlantika, inda Agnes ya hade da kasa mai zafi don samar da ruwan sama mai yaduwa daga inci 6 (150 mm) zuwa inci 12 (300 mm) tare da adadin gida har zuwa inci 19 (480 mm) a yammacin gundumar Schuylkill a Pennsylvania.  Wadannan ruwan sama sun haifar da mummunar ambaliya daga Virginia arewa zuwa New York, tare da wasu ambaliya da ke faruwa a yammacin yankunan Carolinas.

Philadelphia ta sami iskõki masu ɗorewa da ke kusantar ƙarfin guguwa daga guguwa na wurare masu zafi a baya.

 Yanayi mai tsanani 
Rubuce-rubucen jihar shine -42 ° F (-41 ° C), wanda aka rubuta a Smethport a ranar 5 ga Janairu, 1904, yayin da rikodin jihar ya kasance  ° F (44 ° C), an rubuta shi a Phoenixville a ranar 9 da 10 ga Yuli, 1936.

 Ruwan sama 
Abin da ya faru AunawaRanarWurin da yakeMafi Girma na Sa'o'i 24Ruwan samaYuni 22, 1972 (a lokacin Guguwar Agnes) York
Lura: Duk da yake an ba da rikodin ruwan sama na hukuma a sama, NCDC ta lura cewa kimanin inci 34.50 (876  na ruwan sama ya fadi a cikin awanni 12 kusa da Smethport a ranar 17 ga Yuli, 1942. NCDC ta ce wannan shine "watakila mafi girman ruwan sama na sa'o'i 24 a rikodin a waje da wurare masu zafi".

 Snow 
Abin da ya faru AunawaRanarWurin da yakeMafi girma dusar ƙanƙara na sa'o'i 24Maris 20, 1958MorgantownMafi girma na dusar ƙanƙara na kwana biyuDisamba 24-26, 2017ErieMafi zurfin dusar ƙanƙaraMaris 22 da 23, 1958Gouldsboro
Abin da ya faru AunawaRanarWurin da yakeGuguwa mafi zafiGuguwa ta wurare masu zafiAgnes (1972) Yammacin Schuylkill CountyGundumar Schuylkill

 Kididdigar yanayi ga biranen da aka zaɓa