Tucson, Arizona Ends 100+ Day Dry Stretch

news image
Special Stories
15 Jun 2018 10:37 PM
The wait is finally over. After 106 straight days with no measurable rainfall in Tucson, Arizona the city has officially picked up at least a tenth of an inch. Ahhhh, refreshing! A preliminary rainfall report for Tucson showed 0.10" of rainfall as of 9 p.m. Friday. It was still raining around the city at the time of this article, so that daily rainfall report will likely be just a tad higher. Nonetheless, it's the first measurable rainfall since the city received 0.20" on February 28 this year! https://twitter.com/NWSTucson/status/1007787766271397889 While a little technical, yes; the image above shows the weather balloon launch from Friday evening in Tucson. Meteorologists noted the highest precipitable water value for June 15! Commonly referred to as Pwat, it's a measurement of the amount of moisture in the atmosphere. This specific moisture Friday was coming in from the tropical remnants of "Bud." These are 24-hour rainfall reports ending Friday evening, June 15. The remnant moisture from Post-Tropical-Cyclone Bud will stir up additional rain showers and thunderstorms across the Southwest this weekend. Related Story: Remnants of Hurricane Bud to Jumpstart Southwest Monsoon Season  Nearby Phoenix also had a milestone Friday, reaching a dew point temperature (also a measure of moisture) of 60 degrees! https://twitter.com/SteveGlazier/status/1007753810171723776 The tropical moisture is returning at a time that usually signifies the beginning of the monsoon season in the Southwest U.S. When the Southwest heats up continuously and rises into the 100's daily, an onshore wind begins to develop from the nearby, cooler Pacific and Gulf of Mexico. This helps to draw in moisture and bring rain more often. Take a look at the monthly rainfall summary for Tucson. Average monthly precipitation for Tucson, AZ Related Article: Are You Ready For Monsoon Season? For WeatherNation, Meteorologist Steve Glazier
All Weather News
More
Cooler Air & Snow Invades The Rockies

Cooler Air & Snow Invades The Rockies

A digging trough is bringing cooler temperatu

14 Oct 2026 11:10 AM
Tropics: Pacific Stays Hyperactive, Atlantic Quiets Down

Tropics: Pacific Stays Hyperactive, Atlantic Quiets Down

Isaias ended the late-season streak of no hur

14 Oct 2026 11:05 AM
Hot Weather Baking the Heartland This Week, Cooler Air Incoming

Hot Weather Baking the Heartland This Week, Cooler Air Incoming

More records were broken across the Midwest a

14 Oct 2026 11:00 AM
System Late Week Roars into the Northeast

System Late Week Roars into the Northeast

It's getting to be that time of year! Systems

14 Oct 2026 10:55 AM
Severe Storms and Flooding Return to the Plains & Midwest

Severe Storms and Flooding Return to the Plains & Midwest

Severe weather looks to return to parts of th

14 Oct 2026 10:35 AM
Rachel Spreading Moisture Across the Southwest

Rachel Spreading Moisture Across the Southwest

Rachel came ashore in far northwestern Mexico

13 Oct 2026 12:10 AM
Isaias Makes Landfall as A Category 2, Recapping it's Impacts

Isaias Makes Landfall as A Category 2, Recapping it's Impacts

Hurricane Isaias made landfall near Destin, F

12 Oct 2026 11:00 PM