 The city experiences a semi @-@ arid climate ( Köppen climate classification BSk ) , with little precipitation , hot summers and cold winters . Average temperatures in Omak range from 16 @.@ 6 ° F ( − 8 @.@ 6 ° C ) in January to 88 @.@ 8 ° F ( 31 @.@ 6 ° C ) in July . The lowest temperature recorded was − 26 ° F ( − 32 ° C ) on February 1 , 1950 and the highest was 114 ° F ( 46 ° C ) on July 26 , 1928 . The annual daily mean temperature is 48 @.@ 6 ° F ( 9 @.@ 2 ° C ) . Average monthly precipitation ranges from 0 @.@ 49 inches ( 12 mm ) in August to 1 @.@ 66 inches ( 42 mm ) in December . Despite its geographical location further south , the city of Wenatchee maintains almost the same average annual temperature as Omak , as well as several other southern communities . 
