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Figure 3: Historical Monsoon Onset Date

SW Climate Outlook July 2017

July 19, 2017

The official start of the monsoon was June 15, but widespread activity started relatively late this year, especially in southern Arizona. There, numerous storms in mid-July brought widespread and frequent precipitation activity, boosting the percent normal monsoon precipitation in several locations. New Mexico had a comparatively earlier start to monsoon activity, which is expected given the typical spatiotemporal progression of the monsoon, and has seen more steady and widespread monsoon activity, as evidenced by the percent of days with rain.

June 2017 US Average Temperature Percentiles Map

July 2017 CLIMAS SW Climate Podcast - Monsoon Round One (Plus the 122nd Coolest June on Record)

July 16, 2017

In this edition of the CLIMAS Southwest Climate Podcast - Mike Crimmins and Zack Guido sit down to discuss Southwestern weather & climate, including:

  • The extended heat wave of June 2017 (and the near record heat for the first half of 2017 (Jan-Jun)) (1:00 - 15:00),
  • The wildfires in the Southwest , and the role that a monsoon late arrival might have played (15:00-19:00)
  • The Southwestern Monsoon - the components of the system, comparisons to other years, and what we might expect going forward (19:00-38:00)