Arizona Climate Calendars
Monthly calendars for Phoenix, Tucson, Flagstaff, Prescott, Winslow and Yuma that include the daily records for precipitation (rain and snow), high and low maximum temperature, high and low minimum temperature, and normal maximum and minimum temperature and precipitation. Monthly normals and records are also included.
Climate normals are based on 30-year averages. Every country that is a member of the World Meteorological Organization is required to calculate their averages every 10 years.
U.S. Climate Normals (1991-2020) are available at https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals
NWS Climate Summaries