The National Weather Service maintains temperature records of extreme and normal temperatures in Tucson.
Extreme temperature records are available from 1895 to present, and normal temperature records are available for 1981 to 2010. To access this information, visit the National Weather Service website Tucson Monthly and Daily Normals and Records.
The number of 100 plus degree days can be found at Yearly 100°F+ statistics for Tucson (1895-2022).
Find the information you need by calling the library's Infoline at 520-791-4010 or by sending your question to Ask a Librarian.
