▁side ▁of ▁Che ak am us ▁Lake ▁sout heast ▁of ▁Wh ist ler ▁in ▁Gar ib ald i ▁Provin cial ▁Park ▁of ▁British ▁Columbia , ▁Canada . ▁The ▁mountain ▁is ▁composed ▁of ▁red ▁sl ate ▁which ▁is ▁easily ▁divided ▁into ▁thin ▁sheets ▁of ▁uniform ▁thick ness ; ▁in ▁ge ological ▁terms ▁this ▁feature ▁is ▁known ▁as ▁f iss ility . ▁ ▁Cl imate ▁ ▁Based ▁on ▁the ▁Kö ppen ▁climate ▁classification , ▁F iss ile ▁Pe ak ▁is ▁located ▁in ▁the ▁marine ▁west ▁coast ▁climate ▁zone ▁of ▁western ▁North ▁America . ▁Most ▁weather ▁front s ▁origin ate ▁in ▁the ▁Pacific ▁Ocean , ▁and ▁travel ▁east ▁toward ▁the ▁Coast ▁Mountains ▁where ▁they ▁are ▁forced ▁up ward ▁by ▁the ▁range ▁( O ro graph ic ▁lift ), ▁causing ▁them ▁to ▁drop ▁their ▁mo ist ure ▁in ▁the ▁form ▁of ▁rain ▁or ▁snow fall . ▁As ▁a ▁result , ▁the ▁Coast ▁Mountains ▁experience ▁high ▁precip itation , ▁especially ▁during ▁the ▁winter ▁months ▁in ▁the ▁form ▁of ▁snow fall . ▁Tem per atures ▁can ▁drop ▁below ▁− 2 0   ° C ▁with ▁wind ▁ch ill ▁factors ▁below ▁− 3 0   ° C . ▁The ▁months ▁July ▁through ▁September ▁offer ▁the ▁most ▁favor able ▁weather ▁for ▁clim bing ▁F iss ile ▁Pe ak . ▁ ▁See ▁also ▁▁ ▁Geography ▁of ▁British ▁Columbia ▁ ▁Ge ology ▁of ▁British ▁Columbia ▁ ▁Mount ▁Price ▁( B rit ish ▁Columbia ) ▁ ▁Over l ord ▁Mountain ▁ ▁References ▁ ▁External ▁links ▁ ▁We ather : ▁Mountain ▁Fore cast ▁ ▁Category