Remnants from Mario help reduce Las Vegas’ rain deficit in 2025
The remnants from Tropical Storm Mario have helped put a dent in Las Vegas’ rainfall deficit this year.
Mario’s moisture arrived in Las Vegas on Thursday afternoon and affected the valley Friday.
Parts of the valley saw light, scattered showers in the afternoon, including Henderson, Summerlin and Centennial Hills.
A rain gauge in Henderson, near the intersection of Interstate 15 and the 215 Beltway, recorded 0.24 inches of rain, the Regional Flood Control District reported.
On Thursday, Harry Reid International Airport saw measurable rain (0.24 inches) for the first time since July 3, at the beginning of monsoon season.
The airport has recorded 0.26 inches of rain this monsoon season (normal is 0.95), the National Weather Service said. So far, it’s the 18th-driest monsoon season on record, the weather service said, tying the total from 1993.
Until Thursday, this had been the fourth-driest monsoon season on record. The driest years are 2020 and 1944 (tied with a trace) and 2010 (0.01). The Las Vegas monsoon season runs from July 1 to Sept. 30.
So far in 2025, the airport has seen 2.29 inches of rain (average is 3.02). A normal rainfall year in Las Vegas is 4.18 inches.
3-day forecast
Saturday: High near 92, low 73
Sunday: Sunny, high 92, low 74
Monday: Mostly clear, High 93
2025 rain events
Sept. 18: The valley’s long dry streak ends, thanks to remnants from Tropical Storm Mario.
July 18: A few monsoon storms soaked parts of the valley.
July 3: Some showers fell across the area but a strong dust storm caused widespread power outages in the east valley.
June 5: In a rare event for June, showers caused a few disruptions across the valley.
May 6: An “exceptionally rare” May storm shattered rain records.
March 17: Strong winds and a few showers swept through the valley on St. Patrick’s Day.
March 5: A Pacific storm brought light rain to parts of the valley. The nearby mountains saw snow.
Contact Kevin J. Barr at kbarr@reviewjournal.com.
