See How Much Rain Monsoons Have Dumped On 4 Arizona Cities Since 1899

By Sky Schaudt
Published: Monday, June 20, 2016 - 1:27pm
Updated: Thursday, June 15, 2017 - 4:01pm
(Photo by Tracy Greer - KJZZ)
A storm approaches the metro Phoenix area in 2015.

The National Weather Service has been tracking monsoon rainfall — the rainy season generally defined as between June 15 and Sept. 30 — since before the turn of the 20th century.

We've compiled 117 years of that data for Flagstaff, Phoenix, Tucson and Yuma into one chart. Highlights include:

  • 1984 was a very rainy year.
  • If you like precipitation, spend your summers in Flagstaff.
  • In Yuma, there were four seasons with so little rain, it couldn't even be measured.

    • Click the arrow to explore data from individual cities.



    Science