   is a city in sorachi subprefecture, hokkaido, japan. as of 2009, the city has an estimated population of 90,969 and the density of 189 persons per kmÂ². the total area is . on march 27, 2006, the town of kurisawa, and the village of kita (both from sorachi district, sorachi subprefecture) merged into iwamizawa. ==climate== iwamizawa has a humid continental climate (kÃ¶ppen climate classification dfb) with warm summers and cold winters. precipitation is significant throughout the year, but is heaviest from august to october. {{weather box |location = iwamizawa, hokkaido |single line = y |metric first = y |jan high c = -2.6 |feb high c = -1.8 |mar high c = 2.5 |apr high c = 10.5 |may high c = 17.3 |jun high c = 21.2 |jul high c = 24.7 |aug high c = 25.9 |sep high c = 21.6 |oct high c = 15.0 |nov high c = 7.1 |dec high c = 0.6 |jan mean c = -6.2 |feb mean c = -5.8 |mar mean c = -1.5 |apr mean c = 5.5 |may mean c = 11.5 |jun mean c = 15.7 |jul mean c = 19.7 |aug mean c = 21.1 |sep mean c = 16.3 |oct mean c = 9.8 |nov mean c = 3.2 |dec mean c = -2.7 |jan low c = -10.6 |feb low c = -10.4 |mar low c = -5.8 |apr low c = 0.8 |may low c = 6.2 |jun low c = 11.3 |jul low c = 16.0 |aug low c = 17.2 |sep low c = 11.6 |oct low c = 5.0 |nov low c = -0.6 |dec low c = -6.5 |precipitation colour = green |jan precipitation mm = 111.5 |feb precipitation mm = 86.8 |mar precipitation mm = 59.0 |apr precipitation mm = 63.4 |may precipitation mm = 70.3 |jun precipitation mm = 76.0 |jul precipitation mm = 95.3 |aug precipitation mm = 156.4 |sep precipitation mm = 131.4 |oct precipitation mm = 110.2 |nov precipitation mm = 116.6 |dec precipitation mm = 127.4 |jan snow cm = 221 |feb snow cm = 162 |mar snow cm = 72 |apr snow cm = 8 |may snow cm = 0 |jun snow cm = 0 |jul snow cm = 0 |aug snow cm = 0 |sep snow cm = 0 |oct snow cm = 2 |nov snow cm 
Cities_in_Hokkaido