Sauyin yanayi na Seattle

Yana*Yi* Seattle yana da matsakaici, an rarraba shi a cikin bazara mai zafi (ba kamar zafi ba) na Yankin Bahar Rum ta hanyar rarraba yanayi na yau da kullun (Köppen: *Csb*)    kodayake wasu kafofin sun sanya birnin a cikin Yankin teku (Trewartha: Do).   Yana da sanyi, hunturu mai laushi da dumi, lokacin rani mai bushe, yana rufe halaye na duka biyun. Wani lokaci ana nuna yanayin a matsayin yanayin "canji na Bahar Rum" saboda yana da sanyi da rigar fiye da yanayin "gaskiya" na Bahar Ruwa, amma yana da alaƙa da yanayin rani mai bushe da kuma dogaro da ruwan sama mai sanyi (wanda ke da tasiri mai ƙarfi a kan ciyayi na yankin).  Birnin yana daga cikin yankin hardiness na USDA 9a, tare da aljihun da ke kewaye da shi da ke fadowa a ƙarƙashin 8b.

Bayanai na yankin Seattle City sun koma 1894, tare da bayanai a filin jirgin sama na Seattle-Tacoma wanda ya fara a 1945, wurin da ba a cikin Seattle ba.  Kafin 1945 an lura da yanayin yanayin hukuma a wurare a cikin garin Seattle, wanda gabaɗaya ya zama ɗan zafi da bushewa fiye da wurin filin jirgin.. Mafi zafi da aka yi rikodin bisa hukuma shine 108 °F (42 °C) ranar 28 ga Yuni, 2021;  Mafi yawan zafin jiki da aka yi rikodin shine 0 °F (−18 °C) a ranar 31 ga Janairu, 1950;[1] mafi girman yanayin sanyin yau da kullun shine 16 °F (-9 °C) a ranar 14 ga Janairu, 1950, yayin da, akasin haka, mafi ƙarancin rikodi mai dumin rana shine 73 °F (23 °C) a ranar 21 ga Yuni. is  on June 27, 2021.

Seattle gabaɗaya ba ta fuskantar matsanancin yanayi da yawa. Koyaya, ƙarni na 21 ya ga yanayin zuwa ga mafi girman zafin jiki da abubuwan da suka faru na ruwan sama. A watan Yulin 2009 babban zafin jiki na Seattle ya karye ta hanyar digiri 4 Fahrenheit (2.2 Celsius),  sannan ya sake karyewa da kashi 5 F (2.8 C) a watan Yuni 2021. Rubuce-rubucen ruwan sama na rana ɗaya da aka kafa a watan Oktoba na shekara ta 2003 ya ga ruwan sama mafi girma da kusan inci 2 (50mm) fiye da kowane rana a rikodin. Koyaya, tsawa har yanzu ba su da yawa,  kamar yadda birnin ya ba da rahoton tsawa a cikin kwanaki bakwai kawai a kowace shekara.  Hakazalika, birni yawanci yana karɓar akalla dusar ƙanƙara mai sauƙi a kowace shekara, kodayake dusar ƙara mai yawa ba ta da yawa.

## Yanayin zafi

Tsarin zafin jiki na birnin yana da ƙananan sauye-sauye na yanayi, saboda kusanci da teku. Tekun Pacific, Puget Sound da Tafkin Washington suna aiki ne a matsayin masu daidaita zafin jiki wanda ke nufin birnin ya fi sauƙi fiye da yankunan da ke cikin ƙasa a lokacin hunturu kuma ya fi sanyi a lokacin rani. Rashin zafi mai tsanani yana da wuya, kamar yadda yanayin sanyi yake. Ana inganta matsanancin zafin jiki ta hanyar bushewa, iska mai matsewa daga gangaren yammacin Cascades,  yayin da yanayin sanyi ya samo asali ne daga Kwarin Fraser a British Columbia.  Ana ɗaukar rubuce-rubuce daga yankin Seattle City daga 1894 zuwa 1944 kuma a Filin jirgin saman Sea-Tac daga 1945.

### Matsakaicin matsakaicin
A cikin matsakaicin shekara, zafin jiki yawanci zai kasance tsakanin  ° F (-6 ° C) da  ° F (34 ° C) tare da yanayin zafi wanda ya wuce waɗannan ƙimar ba a saba gani ba. Yanayin zafi sama da  ° F (36 ° C) da ƙasa da  ° F (-9 ° C) suna da wuya sosai, tare da abubuwan da suka faru na ƙarshe sun kasance Yuni 28, 2021 da Nuwamba 24, 2010, bi da bi. 

### Rubuce-rubucen yau da kullun
 
**NOTE: a cikin teburin da ke ƙasa, duk lambobin kafin 1945 sun fito ne daga wurare a cikin garin Seattle, wanda ke da ɗan dumi fiye da wurin da filin jirgin saman Sea-Tac yake a yanzu.** Don rarrabe waɗannan tsofaffin lambobi muna sanya su a ƙsa a cikin italics.*rubutun da aka yi amfani da shi.*

## Ruwan sama

Birnin yana ganin sau da yawa, kodayake ruwan sama mai sauƙi tsakanin Oktoba da Mayu, tare da ruwan sama ya zama mai sauƙi da raguwa tsakanin Yuni da Satumba. Tare da "ranar ruwan sama" da yawa fiye da sauran manyan biranen Amurka, Seattle tana da kyakkyawan suna don ruwan sama akai-akai. A cikin matsakaicin shekara, aƙalla 0.01 inci (0.25  na hazo ya faɗi a cikin kwanaki 150, fiye da kusan dukkanin biranen Amurka a gabashin Dutsen Rocky. A watan Nuwamba, Seattle tana da ruwan sama fiye da kowane birni na Amurka na sama da mutane 250,000; Har ila yau, tana da matsayi mai yawa a cikin ruwan sama na hunturu. Sabanin haka, birnin yana karɓar wasu daga cikin mafi ƙarancin ruwan sama na kowane babban birni daga Yuni zuwa Satumba. Seattle tana ɗaya daga cikin manyan biranen Amurka guda biyar mafi ruwan sama kamar yadda aka auna ta yawan kwanaki tare da hazo. Koyaya, saboda Seattle sau da yawa tana da ruwan sama mai sauƙi wanda ke faɗuwa daga sama na kwanaki da yawa, a zahiri tana samun ruwan sama kaɗan (ko wasu hazo) gabaɗaya fiye da sauran biranen Amurka kamar New York City, Miami, ko Houston. Seattle tana fuskantar ruwan sama mafi girma a lokacin Nuwamba, Disamba, da Janairu, tana karɓar kusan rabin ruwan sama na shekara-shekara (ta hanyar girma) a wannan lokacin. A ƙarshen fall da farkon hunturu, koguna na yanayi (wanda aka fi sani da tsarin "Pineapple Express"), tsarin gaba mai ƙarfi, da tsarin matsin lamba na Pacific sun zama ruwan dare. Ruwan sama mai haske da drizzle sune manyan nau'ikan hazo a lokacin sauran shekara. Misali, a matsakaici, kasa da  in (41  na ruwan sama yana fadowa a watan Yuli da Agusta tare lokacin da ruwan sama bai zama ruwan dare ba.

Kowace shekara, jimlar ruwan sama yana da matsakaicin  in (998 , tare da hunturu shine lokacin da ya fi ruwan sama kuma Yuli shine watan da ya fi bushewa. A Sea-Tac, ruwan sama ya faɗo a kowane wata tun lokacin da aka fara rikodin a can a watan Janairun 1945, a baya a yankin Seattle City, Yuli na 1896 da 1922 ba da rahoton hazo ba. Tsawon lokaci na karancin ruwan sama na iya faruwa. Babu ruwan sama mai auna, sama da 0.01 inci (0.25 , ya fadi tsakanin Yuni 18 da Agusta 13, 2017 .  Birnin kuma yana ganin dusar ƙanƙara, da farko a cikin hunturu, amma wani lokacin a ƙarshen kaka da farkon bazara. Snowfall matsakaicin  in (16.0  a kowace shekara amma yana da bambanci sosai tsakanin lokutan hunturu. Mafi yawan ruwan sama a cikin awanni 24 ya kasance  in (127.5  a ranar 20 ga Oktoba, 2003, kuma mafi yawan dusar ƙanƙara ya kasance  in (55  a ranar 2 ga Fabrairu, 1916.  Seattle yawanci tana samun dusar ƙanƙara a kowace shekara amma dusar ƙara mai nauyi ba ta da yawa. Matsakaicin dusar ƙanƙara na shekara-shekara, kamar yadda aka auna a Filin jirgin saman Sea-Tac, shine inci 6.3 (16.0 . Daga lokacin hunturu zuwa lokacin hunturu, adadin na iya zama mai sauyawa sosai.

Saboda bambance-bambance na gida a cikin microclimate, Seattle kuma tana karɓar ƙananan hazo fiye da wasu wurare a yammacin Cascades. Kusan    zuwa yamma, dajin Hoh Rain a cikin Olympic National Park a gefen yammacin Dutsen Olympic yana karɓar matsakaicin ruwan sama na shekara-shekara na  in (3,600 . Mil sittin (97  zuwa kudancin Seattle, babban birnin jihar Olympia, wanda ke cikin inuwar ruwan sama na Dutsen Olympic, yana karɓar matsakaicin ruwan sama na shekara-shekara na  in (1,270 .  Birnin Bremerton, kimanin  mi (24  yammacin tsakiyar Seattle a wancan gefen Puget Sound, yana karɓar  in (1,430  na hazo a kowace shekara.

Ɗaya daga cikin banbanci da yawa ga sunan Seattle a matsayin wuri mai laushi yana faruwa a cikin shekarun El Niño, lokacin da tsarin yanayin ruwa ke biye har zuwa kudu kamar California kuma ƙasa da ruwan sama na yau da kullun ya faɗi a yankin Puget Sound. Koyaya, El Nino na 2015-2016 ya haifar da karuwar ruwan sama. Tun da ruwan yankin ya fito ne daga tarin dusar ƙanƙara a lokacin watanni masu bushewa, hunturu na El Niño ba kawai zai iya samar da tseren kankara ba amma zai iya haifar da rabawa na ruwa da karancin wutar lantarki a lokacin rani mai zuwa.

### Matsakaicin matsakaicin

### Yawan ruwan sama
 

## Sauran abubuwan da suka faru

### Hasken rana, UV da hasken rana
Garin gabaɗaya yana fuskantar yanayin gajimare, tare da bayyanannun kwanaki ba safai ba.  Sakamakon latitude na birnin, yana samun matsakaicin bambanci a cikin sa'o'in hasken rana tsakanin lokacin rani da damuna, ko da yake ba a ƙarƙashin iyakar biranen da ke gaba da arewa. Yankin Seattle shine yanki mafi gajimare na Amurka, saboda wani bangare na guguwa akai-akai da kuma kasawar da ke shigowa daga kusa da Tekun Fasifik.  Seattle tana da gajimare kwanaki 201 daga cikin shekara kuma wani bangare na kwana 93 gajimare.  (An tattara bayanan yanayi na hukuma da yanayin yanayi a Filin jirgin sama na Seattle-Tacoma, wanda ke da nisan kilomita 19 (12 mi) kudu da cikin gari a cikin birnin SeaTac, wanda yake a matsayi mafi girma, kuma yana yin rikodin ƙarin ranakun gajimare da ƙarancin gizagizai a kowace shekara.)

### Iska
Wurin Haɗin Sauti na Puget wani muhimmin fasalin yanayin Seattle ne.  A cikin yankin haɗuwa, iskar da ke zuwa daga arewa ta haɗu da iskar da ke fitowa daga kudu.  Duka kogunan iska sun samo asali ne daga Tekun Pasifik;  Ana raba kwararar iska ta Dutsen Olympics zuwa Seattle ta yamma, sannan ta sake haduwa zuwa gabas.  Lokacin da igiyoyin iska suka hadu, ana tilasta su zuwa sama, yana haifar da convection.  Tsawa da wannan aikin ke haifarwa yawanci rauni ne kuma yana iya faruwa a arewa da kudancin gari, amma Seattle da kanta ba kasafai take samun sama da tsawa da ƙanƙara ba.  Guguwar iskar Hanukkah ta Hauwa'u a cikin Disamba 2006 keɓancewar da ta haifar da ruwan sama mai ƙarfi da iskar da ke tashi zuwa mil 69 a cikin sa'a guda (111 km/h), al'amarin da ba a yankin Puget Sound Convergence Zone ya haifar da shi ba kuma ya yaɗu a ko'ina cikin Pacific Northwest.  A cikin watan Disambar 2007, guguwa mai ƙarfi ta haifar da iska mai ƙarfi da ruwan sama mai ƙarfi, wanda ya yi sanadiyar mutuwar mutane 5..

## Canjin yanayi
Da yake birni ne na bakin teku, Seattle na iya fuskantar sakamako mai mahimmanci daga hauhawar matakin teku. Tekun ya tashi da inci 6 (15  a cikin karni da ya gabata, kuma ana sa ran ya tashi da 28 inci (71  da 2100 da 47 inci (120  da 2150. Ana sa ran cewa a wannan lokacin, ambaliyar ruwa ta yau da kullun za ta zama matsala, tare da halin yanzu na shekara-shekara mai tsanani na sarki ya zama kowane wata ko ma abubuwan yau da kullun.

### Ma'aunin
Yawan zafin jiki a Seattle ya karu a hankali kuma ana sa ran wannan yanayin zai ci gaba saboda dumama ta mutum. A cikin ƙarni na ƙarshe, matsakaicin ya karu da kusan digiri 0.3 Fahrenheit kowane shekaru goma. A ƙarshen ƙarni, an yi hasashen cewa za a sami matsakaicin makonni biyu na kwanaki  ° F (32 ° C) a kowace shekara.

Gidaje a yankin a tarihi ba su yi amfani da sanyaya iska ba saboda yanayin bazara; Ofishin Ƙididdigar Amurka ya gano cewa kashi 31 cikin 100 na gidaje a cikin yankin Seattle sun yi amfani da iska. Yawancin manyan raƙuman zafi a cikin 2010s da 2020s, gami da Yuni 2021 zafi dome wanda ya sa rikodin yanayin zafi a cikin jihar, ya haifar da karuwar amfani da iska. A ƙarshen 2021, binciken gidaje na Ofishin Ƙididdigar shekara-shekara ya gano cewa kashi 53 cikin 100 na gidaje a cikin babban birni suna da iska mai sanyaya.&nbsp;&nbsp;

### Ruwan sama
Ruwan sama a cikin birni ya karu dan kadan, amma ana sa ran wannan yanayin zai ci gaba. Abubuwan da suka faru na ruwan sama sun zama mafi yawa a cikin shekarun da suka gabata kuma ana sa ran wannan yanayin zai ci gaba.

## Bayanan tashar
 

## Bayani mai bayani