Yanayin yanayi na San Diego

Yanayin San Diego, California, an rarraba shi azaman yanayi mai zafi-lokacin bazara (Köppen climate classification Csa).  Yayin da yanayin yanayi na asali yana da zafi, rana, da bushewa, da sanyi, lokacin sanyi, San Diego ya fi ƙazanta fiye da yanayin yanayin Bahar Rum kuma ya ƙunshi ingantattun lokacin sanyi idan aka kwatanta da sauran yankuna masu irin wannan yanayi.[1]  Yanayi a filin jirgin sama na San Diego, wurin da ake samun rahotannin yanayi na hukuma na San Diego, da kuma yanayin a mafi yawan yankunan bakin teku, ya ratsa kan iyaka tsakanin BS da BSk saboda sanyin sanyi da lokacin rani a waɗannan wurare.

## Yanayin zafi
Average monthly temperatures range from  in January to  in August.&#x5B;**&#x5D; On average, 344 days a year are hotter than , but only 25 days are hotter than .

Ƙarshen lokacin rani da farkon kaka yawanci lokutan zafi ne na shekara tare da matsakaicin  ° F (26 ° C) a watan Agusta da  ° F (25 ° C) A watan Satumba. Yanayin zafi a wasu lokuta ya kai  ° F (32 ° C) ko mafi girma. Snow da kankara ba su da yawa a lokacin hunturu, yawanci suna faruwa ne kawai a cikin ƙasa daga bakin teku lokacin da suke.

San Diego tana fuskantar girgije na ruwa, galibi tsakanin Mayu da Agusta, wanda ke haifar da yanayin sanyi, yanayin girgije da hazo da safe. Yanayin Layer na Marine ya kasance har sai zafi na rana ya zama mai ƙarfi don ya kawar da girgije. Kalmomin yankin "May gray" da "June gloom" suna nufin hanyar da San Diego ke da matsala mafi yawa wajen girgiza hazo da sassafe a cikin waɗancan watanni, kuma yanayin sanyi, yanayin girgije sau da yawa yakan ƙare har zuwa rana ko ma duk rana.

Yanayin zafi yana tashi zuwa manyan karatu ne kawai a lokuta masu wuya, musamman lokacin da iskõki na gabas (wanda aka sani da "iskõki na Santa Ana") ke kawo iska mai zafi, mai bushe daga hamada. Wannan alama ce ta Oktoba a matsayin lokacin wuta ga San Diego da sauran Kudancin California saboda karancin hazo da raƙuman zafi na lokaci-lokaci wanda matsakaicin yanayin zafi na kowane wata ba ya nunawa nan da nan. Misali, watanni tare da mafi girman rikodin yanayin zafi shine Satumba a  ° F (44 ° C) da Oktoba a  ° F (42 ° C). 

Rubuce-rubucen zafin jiki mai girma a ofishin National Weather Service a San Diego na  ° F (44 ° C) ya kasance a ranar 26 ga Satumba, 1963. Rubuce-rubucen ƙarancin zafin jiki ya kasance  ° F (-4 ° C) a ranar 7 ga Janairu, 1913.  An ɗaure rikodin zafin jiki sau ɗaya kawai kuma ya faru a ranar 27 ga Satumba, 2010, shekaru 47 da kwana biyu bayan rikodin da aka saita. Biranen da yawa kusa da San Diego, gami da Los Angeles, sun karya tarihin su na yau da kullun a wannan rana.

## Ruwan sama
San Diego yana da matsakaita kwanaki 146 na rana da 117 a wani ɓangare na gizagizai a shekara.  Matsakaicin hazo na shekara bai wuce inci 12 (30 cm) ba, yana haifar da ƙazamin yanayi na kan iyaka.  Ruwan sama yana da ƙarfi sosai a cikin mafi sanyi rabin shekara, musamman watannin Disamba zuwa Maris, kodayake hazo ya yi ƙasa da kowane yanki na gabar tekun yammacin Amurka.  Yayin da watannin bazara kusan ba su da ruwan sama, danshi daga damina ta Arewacin Amirka yakan haifar da ƙarin zafi da tsawa na aƙalla ƴan kwanaki kowane bazara.  Ruwan sama yana canzawa sosai daga shekara zuwa shekara kuma daga wata zuwa wata, kuma San Diego na fuskantar fari da ambaliya.  Duk da yake guguwa suna da wuya sosai, San Diego yana karɓar ƙarin guguwa na wurare masu zafi da ragowar guguwa na wurare masu zafi fiye da ko'ina a California.  Shahararrun misalan sun hada da guguwar San Diego ta 1858, guguwar California ta 1939, guguwar Kathleen da ta rage a shekarar 1976, da Hurricane Hilary a shekarar 2023, wadanda dukkansu suka kawo ruwan sama da iska mai yawa zuwa San Diego.  Yankunan cikin gida kamar El Cajon na iya samun sama da inci 20 (51 cm) kowace shekara akan matsakaita;  ci gaba a cikin ƙasa a wurare mafi girma a cikin dajin Cleveland na ƙasa yana samun ƙari tukuna, kuma wasu yankuna kamar Dutsen Palomar matsakaicin sama da inci 40 (100 cm) na ruwan sama a kowace shekara.

A ofishin Kula da Yanayi na Kasa, akwai matsakaicin kwanaki 41 tare da ruwan sama mai auna. Shekarar da ta fi ruwan sama ita ce 1941 tare da inci 24.93 (63.3  kuma shekarar da ta fi bushewa ita ce 1953 tare da inci 3.23 (8.2 . Mafi yawan ruwan sama a cikin wata daya shine 9.09 inci (23.1  a watan Janairun 1993. Mafi yawan ruwan sama a cikin awanni 24 ya kasance inci 3.23 (8.2  a ranar 5 ga Afrilu, 1926. 

## Snow
An yi rikodin dusar ƙanƙara da ke faɗuwa a kan al'ummomin San Diego sau biyar kawai a cikin shekaru 125 na rikodin rikodin. An ga dusar ƙanƙara ta ƙarshe a San Diego a ranar 14 ga Fabrairu, 2008 a kusa da ƙafa 1,700 zuwa 1,800 (520 zuwa 550 , kuma dusar ƙara ta ƙarshe da za a iya auna ta auna unguwa da kewaye da birnin ta fadi a ranar 13 ga Disamba, 1967. A cikin hunturu, dusar ƙanƙara mai sauƙi ya zama ruwan dare a yankunan tsaunuka na gabas da arewacin San Diego County (ciki har da Ramona da Julian) sama da ƙafa 3,000-4,000 (910-1,220 . 

## Bambanci
Yanayi a yankin San Diego sau da yawa ya bambanta sosai a kan gajeren nesa na ƙasa, saboda yanayin birni (Bay, da tuddai da yawa, duwatsu, da canyons), don haka yana nuna microclimate: akai-akai, musamman a lokacin "Mayu launin toka / Yuni", murfin girgije mai zurfi "Layer na ruwa" zai kiyaye iska mai sanyi da danshi a cikin 'yan mil daga bakin teku, amma zai samar da hasken rana mara girgije tsakanin kimanin kilomita 15 da Santee misali - ƙwarewar ƙarancin girgije.

## Idan aka kwatanta da matsakaicin ƙasa
A matsakaici, San Diego yana ganin kwanaki 21 tare da wasu hazo yayin da sauran ƙasar ke ganin kusan 110. Matsakaicin ƙasa don yawancin kwanakin rana shine 213 yayin da San Diego ke da 267. Ruwan dusar ƙanƙara na shekara-shekara na San Diego shine inci 0 a kowace shekara yayin da al'ummar ke ganin matsakaicin inci 24.2 (610  a kowace shekara. Matsakaicin Amurka na kwanaki sama da  ° F ( ° C) shine kwanaki 37.9 yayin da San Diego ke da kwanaki 2.5 kawai, kuma akwai, a matsakaita kwanaki 0 ƙasa  ° F (0 ° C) a San Diego, yayin da matsakaicin ƙasa shine kwanaki 88. Matsakaicin zafin jiki a watan Janairu ga kasar shine  ° F (-3.1 ° C), kuma ga San Diego shine  ° F (10 ° C). Matsakaicin zafin jiki a watan Yuli don San Diego shine  ° F (24 ° C). Matsakaicin ƙasa shine  ° F (30.4 ° C). &nbsp;

## Bayanai

## Yanayin teku
Matsakaicin zafin jiki na shekara-shekara na teku shine  ° F (18 ° C), daga  ° F (15 ° C) a watan Janairu zuwa  ° F (22 ° C) A watan Agusta. Yanayin ruwa ya tashi tun 1950 kamar yadda aka auna a Scripps Pier.

## Santa Anas
Watanni na Satumba zuwa Afrilu suna kawo iska mai dumi daga hamada da ake kira "Santa Anas". Yana faruwa game da kwanaki 10 daga shekara, waɗannan iskõki suna kawo wani lokacin zafi, amma koyaushe yanayin bushe. A cikin ƙasa,  a cikin tsaunuka da canyons, suna iya fashewa a cikin gusts na mil 100 a kowace awa (160 km / h)  suna iya rage yawan zafi zuwa lambobi guda, kodayake a bakin tekun ba sa ganin gusts na sama da mil 40 a kowace awa (64 km / h). Za su iya yaduwa kuma su kara tsananta gobarar daji. Saboda wadannan iskõki suna busawa daga gabas zuwa yamma, fahimta ta yau da kullun ita ce suna jan iska mai zafi daga hamada. Koyaya, ba sabon abu ba ne a lokacin yanayin Santa Ana don bakin tekun ya fi zafi fiye da yankunan hamada. Iska ta Santa Ana a zahiri tana da dumi saboda matsin lamba yana ƙaruwa: Yayin da iska ke sauka zuwa matakin teku daga tsaunuka mafi girma na Great Basin da Rocky Mountains zuwa gabas, an matse shi kuma zafin jikinsa ya tashi.

## Guguwa
Tun da hanyar mafi yawan guguwa yana da yawa a kudancin San Diego, da kuma sanyi California Current (yawanci yanayin zafi na teku ne kawai a cikin 60 na F a kan iyakar CA) yana kiyaye ruwan teku mai mahimmanci fiye da Gulf of Mexico da yammacin Atlantic (sau da yawa yanayin zafi a kan 82 F), cyclones na wurare masu zafi ba sa tasiri San Diego.  Yawancin guguwa mai zafi na arewa maso yamma suna bazuwa a kan Baja California kuma sun kasa kawo hazo zuwa San Diego.  Guguwar iska daya tilo da ta yi tasiri a San Diego a matsayin guguwa a cikin kusan shekaru 200 na rikodi ita ce guguwar San Diego ta 1858.  Wasu guguwa guda biyu sun yi nasarar kawo iska mai ƙarfi mai ƙarfi zuwa Kudancin California: Guguwar California ta 1939 da Hurricane Kathleen (1976).  Matsakaicin zafin jiki na ruwa a Scripps Pier a California Yanzu ya karu da kusan digiri 3 tun 1950, a cewar masana kimiyya a Cibiyar Scripps na Oceanography.

## Girgije na Mayu da Yuni
A cikin watanni na Mayu da Yuni, Layer na ruwa yana kawo girgije wanda ke rufe al'ummomin bakin teku da na kusa. Wasu suna kiranta "Mayu Gray", ko "Yuni Gloom".

## Kudancin Oscillation
Lokacin hunturu na San Diego yana da tasiri daga El Niño Southern Oscillation . A lokacin El Niño, San Diego yana karɓar ƙarin guguwar hunturu tare da yanayin zafi da zafi. A lokacin La Niña, San Diego ya zama bushe tare da yanayin sanyi da ƙasa da zafi.

## Alamar Ultraviolet