In May, Tucson saw several punches of rain and wind associated with small systems. A few inches of snow fell on southeastern Arizona mountaintops midmonth.
Overall, spring saw below-normal rainfall. It was the 13th-warmest spring on record, with two days reaching triple digits.
The extreme heat of Southern Arizona returned slightly ahead of schedule for the summer. Tucsonans endured the first 100-degree day on May 30, close to the average date of May 26. The first 110-degree temperature was observed 11 days earlier than normal on June 18.
