Question: when will the weather cool down in tucson?
Answer: The hottest day of the year is June 28, with an average high of 102°F and low of 75°F. The cool season lasts for 3.2 months, from November 21 to February 28, with an average daily high temperature below 72°F. The coldest day of the year is January 4, with an average low of 42°F and high of 65°F.