Question: What city had a july high below 84, and a january low of 34.3?
SQL: SELECT "City" FROM "2-13002617-3" WHERE "July (Avg. High °F)" < 84.0 AND "January (Avg. Low °F)" = '34.3';

Question: What is the july average low associated with a january average high of 30.4?
SQL: SELECT COUNT("July (Avg. Low °F)") FROM "2-13002617-3" WHERE "January (Avg. High °F)" = '30.4';