The Verde Valley didn’t get sloshed — quite the contrary, winter was dry, with record heat in February. Spring then became cool and moist, but unusually high atmospheric pressure has turned the thermostat up again this month.

New daily records were set for Cottonwood/Tuzigoot (Cottonwood station was moved to Tuzigoot National Monument in 1977), one nearly matching the all-time high of 118°F set June 26, 1994:

  • 105 on June 2 broke the 1956 record of 103.
  • 108 on June 3 broke the 1996 record of 106.
  • 109 on June 4 broke the 1996 record of 108.
  • 110 on June 5 broke the 1996 record of 107.
  • 113 on June 19 broke the 1968 record of 108.
  • 117 on June 20 broke the 1936 record of 109 and was 1° hotter than Phoenix Sky Harbor Airport.

Cottonwood lacked a weather station from 1937 through 1948, but it appears that average June high temperatures continue to rise. Here’s a history of new record average highs:
 1922: 97.3
 1924: 97.6
 1956: 98.7
 1960: 99.3
 1974: 102.1
 1994: 102.6
 2016: 102.7 (estimated)

Nine of the 15 hottest Junes occurred this century. Nine of the 15 coolest Junes occurred prior to 1963.

Cause for panic? No. Average global temperatures have been on the increase since the “little ice age” ended in the 1800s. It would be odd if records weren’t broken and more worrisome if most were record lows instead of highs.

Advertisements