We have seen warming, too. On May 26 it was 85 in Phoenix. On June 4 it was 115.
https://www.wunderground.com/history/airport/KPHX/2016/5/9/MonthlyCalendar.html?req_city=Phoenix%20Sky%20Harbor%20International&req_state=AZ&req_statename=&reqdb.zip=85034&reqdb.magic=5&reqdb.wmo=99999
https://www.wunderground.com/history/airport/KPHX/2016/6/9/MonthlyCalendar.html?req_city=Phoenix%20Sky%20Harbor%20International&req_state=AZ&reqdb.zip=85034&reqdb.magic=5&reqdb.wmo=99999#calendar
I just wonder how hot it will be at the end of the month!
It usually warms up this time of year, but both of these temps are unusual.
nacl