 Sarnia has a humid continental climate ( Köppen climate classification Dfb ) . Winters are cold with a few short @-@ lasting Arctic air masses that dip far enough south and bring with them daily high temperatures lower than − 10 ° C ( 14 ° F ) . Sarnia , while not quite located in the southwestern Ontario snowbelt , sometimes receives large quantities of lake @-@ effect snow . Sarnia averages 112 @.@ 0 cm ( 44 @.@ 1 in ) of snow per year , while London averages 194 @.@ 3 cm ( 76 @.@ 5 in ) . 
 Sarnia <a href='got' title='1'><mark>has</mark></a> a humid continental climate ( Köppen climate classification Dfb ) . Winters <a href='drop_aux' title='2'><mark>are</mark></a>cold with a few short @-@ lasting Arctic air masses <a href='null_relcl' title='3'><mark>that</mark></a>dip far enough south and bring with them daily high temperatures lower than − 10 ° C ( 14 ° F ) . Sarnia , while not quite located in <a href='None' title='4'><mark>the</mark></a>southwestern Ontario <a href='negative_concord' title='5'><mark>snowbelt</mark></a> , sometimes <a href='uninflect' title='6'><mark>receives</mark></a> large quantities of lake @-@ effect snow . Sarnia averages 112 @.@ 0 cm ( 44 @.@ 1 in ) of snow per year , while London averages 194 @.@ 3 cm ( 76 @.@ 5 in ) . 
Sarnia got a humid continental climate ( Köppen climate classification Dfb ) . Winters cold wid a few short @-@ lasting Arctic air masses dip far enough south and bring with em daily high temperatures lower than − 10 ° C ( 14 ° F ) . Sarnia , while not quite located in southwestern Ontario no snowbelt , sometimes receive large quantities of lake @-@ effect snow . Sarnia averages 112 @.@ 0 cm ( 44 @.@ 1 in ) of snow per year , while London averages 194 @.@ 3 cm ( 76 @.@ 5 in ) .