Sauyin yanayi na Birnin Oklahoma

Birnin Oklahoma yana cikin Yanayin zafi mai zafi (Köppen: Cfa), tare da sauye-sauye a cikin yanayi na yau da kullun da kuma yanayi, sai dai a lokacin watanni masu zafi da zafi. Iska mai ɗorewa, yawanci daga kudu ko kudu maso gabas a lokacin rani, yana taimakawa wajen sanyaya yanayin zafi. Iska ta arewa a lokacin hunturu na iya kara lokacin sanyi. Matsakaicin zafin jiki na shekara-shekara na yau da kullun shine  ° F (16.3 ° C); shekara mafi sanyi shine 1895 tare da matsakaicin  ° F (14.4 ° C), yayin da mafi zafi 2012 a  ° F (17.8 ° C). Ruwan sama yana da matsakaicin inci 36.52 (928  a kowace shekara, yana faɗuwa a matsakaicin kwanaki 84, tare da watanni masu zafi suna karɓar ƙarin; Ruwan sama na shekara-shekara a tarihi ya kasance daga  in (400  a cikin 1901 zuwa  in (1,447  a 2007.  Rana tana haskakawa game da 69% na lokacin, tare da yiwuwar kashi na kowane wata daga 60% a watan Disamba zuwa 80% a watan Yuli.

## Lokacin hunturu
Hunturu yawanci lokacin sanyi ne, da bushe-bushe, kuma lokacin gajere ne, duk da cewa suna da yawa.  Janairu yana da matsakaicin matsakaicin matsakaici na 39.2 °F (4.0 °C), amma yanayin zafi yakan kai daskarewa a matsakaicin kwanaki 71 kuma ya kasa tashi sama da daskarewa a matsakaicin kwanaki 8.3, kuma, tare da matsakaita a watan Disamba zuwa Fabrairu na kwanaki 6.3 da ya kai 70 °F (21 °C), ana yawan samun zafi kuma yawancin lokacin sanyi suna ganin ma'aunin zafi da sanyio.  Ƙarshen karatun 0 °F (-18 °C) ko mafi sanyi ya faru ne a ranar 18 ga Fabrairu, 2021. Mafi ƙarancin rikodin hukuma shine -17 °F (-27 °C) a ranar 12 ga Fabrairu, 1899, yayin da mafi ƙarancin kullun shine 2 °F (-17 °C) a ranar 12 ga Fabrairu, 1905, da 1 ga Janairu.  watan mafi sanyi da aka yi rikodin shi ne Janairu 1930 tare da matsakaicin zafin jiki na 23.1 °F (-4.9 °C).  Dusar ƙanƙara tana faruwa a kusan kowane lokacin hunturu, tare da ruwan dusar ƙanƙara na yau da kullun yana zama inci 7.6 (19.3 cm);  Tarin lokacin hunturu ya bambanta daga adadi a cikin 1931-32 da 1934-35 zuwa inci 25.2 (64.0 cm) a cikin 1947-48.  Mafi yawan dusar ƙanƙara a rana ɗaya shine inci 13.5 (34.3 cm) a ranar 24 ga Disamba, 2009.

A lokacin bazara (Maris zuwa farkon Yuni), Birnin Oklahoma yana cikin yankin rikice-rikice tsakanin iska mai dumi, mai laushi daga Tekun Mexico da sanyi, iska mai bushe daga Kanada. Bugu da ƙari, "layin bushe," wanda ke raba iska mai zafi, mai bushe daga Mexico da kudu maso yammacin Amurka daga iska mai dumi, mai laushi daga Tekun Mexico, sau da yawa yana haifar da tsawa mai ƙarfi zuwa mai tsanani a tsakiyar Oklahoma. Dangane da haka, hazo yana ganin alamar tashi a cikin bazara, ba sabon abu ba tare da mummunan yanayi, gami da tsawa mai tsanani, babban ƙanƙara, da guguwa, musamman daga tsakiyar Afrilu zuwa farkon Yuni, tare da Mayu mafi girman watan haɗari. Birnin Oklahoma, da tsakiyar Oklahoma gabaɗaya, yana ɗaya daga cikin wuraren da ke fama da guguwa a duniya.

Matsakaicin ranar daskarewa ta ƙarshe ita ce Maris 29, yayin da za'a iya sa ran  °  farko (32 ° C) na lokacin rani a ranar 6 ga Mayu.

## Lokacin bazara
Lokacin bazara yana da zafi sosai kuma yana da ɗan sanyi sosai, amma daga tsakiyar watan Yuni zuwa gaba, ba su da ɗanɗano bushewa, tare da ƙarancin ruwa mai ƙarfi da ƙasa da ƙasa idan aka kwatanta da ƙarshen Afrilu zuwa farkon Yuni.  A cikin shekaru da yawa, dogayen shimfidar zafi, bushewar yanayi, wanda ayyukan shawa/haguwar tsawa ke cikawa, sun fi yawa.  Yuli yana da matsakaicin matsakaicin matsakaici na 83.0 °F (28.3 °C).  A matsakaita, yanayin zafi yakan kai 90 °F (32 °C) akan kwanaki 70 a kowace shekara da 100 °F (38 °C) akan 10.4, kuma a cikin mafi munin zafin rana na iya kaiwa ga tsohon alamar kowace rana na wata ɗaya.  2012, yayin da mafi ƙarancin yau da kullun shine 84 °F (29 °C) ranar 3 ga Agusta, 2012;  watan da ya fi zafi da aka yi rikodin shi ne Yuli 2011 tare da matsakaicin zafin jiki na 89.2 °F (31.8 °C), ya biyo baya a watan Agusta 2011.

A matsakaici, Birnin Oklahoma yana fuskantar mafi girma a cikin hazo a watan Satumba da Oktoba, idan aka kwatanta da zafi da bushewa na Yuli da Agusta. Yanayin zafi yana sanyaya da sauri a cikin kaka, musamman a watan Nuwamba, amma yanayin zafi na rana na iya zama mai dumi (80s zuwa low ) zuwa tsakiyar Oktoba. Shaida ga babban canjin yanayi a cikin kaka shine matsanancin zafin jiki na Nuwamba 11, 1911, tare da tsayi da ƙasa na yau da kullun na 83 da 17 ° F (28 da -8 ° C), dukansu biyu har yanzu suna riƙe da rikodin sama da ƙasa don kwanan wata. Ana iya sa ran 90 ° F (32 ° C) na ƙarshe na lokacin zafi a ranar 26 ga Satumba, kuma matsakaicin ranar daskarewa ta farko a cikin kaka shine Nuwamba 6.

## Yanayi mai tsanani
Birnin Oklahoma dama da yanayi mai tsanani daga Maris zuwa Yuni, musamman a lokacin Afrilu da Mayu. Da yake a tsakiyar yankin da aka fi sani da Tornado Alley, Birnin Oklahoma na iya fuskantar Guguwa mai tsanani da yawa, da  guguwa masu tsanani da kuma lokaci-lokaci. Guguwa ta faru a kowane wata na shekara a Birnin Oklahoma, kuma karamin karami na biyu yana faruwa a farkon kaka, musamman a tsakiyar Satumba zuwa ƙarshen Oktoba. Yankin birni na Oklahoma City yana daya daga cikin manyan biranen da ke fama da guguwa a duniya, tare da kimanin guguwa 150 da ke faruwa a cikin iyakokin birni tun 1890. Tun lokacin da aka adana bayanan yanayi, guguwa goma sha uku masu tsananin guguwa sun mamaye Oklahoma City, goma sha ɗaya F / EF4 da biyu F / EF5. A ranar 3 ga Mayu, 1999 sassan kudancin Oklahoma City da kewayen da ke kusa da su sun sha wahala daya daga cikin guguwa mafi karfi a rikodin, F5 a kan sikelin Fujita, tare da saurin iska da aka kiyasta ta radar a   km / h).  A ranar 20 ga Mayu, 2013, kudu maso yammacin Oklahoma City, tare da Newcastle da Moore, wani guguwa na EF5 ya sake buga su; wannan yana da 0.5 zuwa 1.3 mil (0.80 zuwa 2.09   ya kashe mutane 23. A ranar 31 ga Mayu na wannan shekarar, wani barkewar ya shafi yankin Oklahoma City, gami da EF1 da EF0 a cikin birni da guguwa mai nisan kilomita 2.6 a yammacin birnin wanda ke da faɗin kilomita 4.2, guguwa mafi girma da aka taɓa yin rikodin, kuma, kamar yadda Mayu 3, 1999 F5, yana ɗaya daga cikin guguwa masu ƙarfi a rikodin.&nbsp;

## Manazarta