▁addition , ▁the ▁island ▁lists ▁over ▁ 5 0 ▁vari eties ▁of ▁en demic ▁flower , ▁not ably ▁rh od od end rons , ▁and ▁hundreds ▁of ▁rare ▁en demic ▁Bry oph y ta , ▁as ▁well ▁as ▁a ▁number ▁of ▁en demic ▁trees . ▁ ▁Cl imate ▁Y ak ush ima ▁has ▁a ▁hum id ▁subt rop ical ▁climate ▁( K ö ppen ▁climate ▁classification ▁C fa ) ▁with ▁hot , ▁hum id ▁sum mers ▁and ▁m ild ▁winter s . ▁P reci p itation ▁is ▁extremely ▁heavy , ▁with ▁at ▁least ▁ ▁in ▁each ▁month ▁and ▁as ▁much ▁as ▁ ▁in ▁June ▁alone . ▁Y ak ush ima ▁is ▁Japan ' s ▁wet test ▁place , ▁and ▁annual ▁precip itation ▁in ▁Y ak ush ima ▁is ▁one ▁of ▁the ▁world ' s ▁highest ▁at ▁. ▁It ▁is ▁said ▁by ▁the ▁loc als ▁to ▁rain ▁" 3 5 ▁days ▁a ▁month ". ▁There ▁are ▁d rier ▁periods ▁in ▁aut umn ▁and ▁winter , ▁while ▁the ▁heav iest ▁down p ours ▁occur ▁in ▁spring ▁and ▁summer , ▁often ▁accompanied ▁by ▁land sl ides . ▁It ▁is ▁the ▁southern most ▁place ▁in ▁Japan ▁where ▁there ▁is ▁snow ▁in ▁the ▁mountains , ▁often ▁for ▁months , ▁while ▁the ▁ocean ▁temperature ▁is ▁never ▁below ▁ ▁Pol l ution ▁The ▁island ▁is ▁down wind ▁of ▁heavily ▁poll uted ▁areas ▁in ▁the ▁People ' s ▁Republic ▁of ▁China . ▁Y ak ush ima ▁white ▁p ine ▁in ▁the ▁forest ▁on ▁the ▁island ▁may ▁have ▁been ▁affected ▁by ▁comb