. ▁F rost ▁may ▁occur ▁in ▁winter ▁but ▁the ▁days ▁still ▁generally ▁warm ▁up ▁to ▁around ▁, ▁with ▁a ▁January ▁average ▁of ▁. ▁The ▁warm est ▁month ▁is ▁June , ▁which ▁aver ages ▁. ▁Near ly ▁three ▁qu arters ▁of ▁the ▁annual ▁ra inf all ▁occurs ▁from ▁June ▁to ▁October . ▁ ▁Dem ography ▁The ▁pre fect ure ▁has ▁about ▁ 2 . 5 ▁million ▁inhabitants . ▁ ▁Administr ative ▁divisions ▁The ▁city - p ref ect ure ▁of ▁Ba os han ▁has ▁juris diction ▁over ▁five ▁sub div isions — a ▁district , ▁one ▁county - level ▁city ▁and ▁three ▁count ies : ▁ ▁T eng y ue , ▁the ▁other ▁major ▁populated ▁area ▁in ▁the ▁county , ▁successfully ▁lo bb ied ▁for ▁and ▁achieved ▁city ▁status ▁in ▁ 2 0 1 5 - 1 6 ▁and ▁is ▁currently ▁in ▁the ▁process ▁of ▁separ ating ▁itself ▁and ▁the ▁surrounding ▁T eng ch ong ▁area ▁from ▁Ba os han ▁administr atively . ▁ ▁Eth nic ▁groups ▁ ▁Bul ang ▁According ▁to ▁the ▁Ba os han ▁Eth nic ▁Gazette er ▁( 2 0 0 6 : 3 3 7 ), ▁eth nic ▁Bul ang ▁are ▁distributed ▁in ▁the ▁following ▁villages ▁within ▁Ba os han ▁City . ▁ ▁Sh id ian ▁County ▁M ula oy uan ▁(: ▁M ula oy uan ▁( ), ▁Haz hai ▁( ), ▁D adi ▁( ), ▁Long t ang ▁() ▁B ail ang ▁Township ▁( ): ▁J ici ▁( ), ▁D az h ong ▁( ), ▁J ians han ▁()