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How Much Rain Did Las Vegas Get in the 2026 Monsoon Season?

Written October 4, 2026. Rain totals are as of October 4, 2026.

Key Takeaways:
The 2026 monsoon season was dry. Harry Reid International Airport measured 0.50 inch of rain from June 15 to September 30, by the National Weather Service record. The average is 1.03 inches, the Las Vegas Review-Journal reported.
The rain came in two main rounds. Across 146 flood control district rain gauges in the valley, the storm of September 28 and 29 brought 49% of the season's rain and the storms of August 12 to 16 brought 40%.
City Seamless Rain Gutter fabricates seamless gutters on site that collect roof runoff and send it through downspouts away from the foundation.

How much rain did Las Vegas get in the 2026 monsoon season?

Less than normal. The gauge at Harry Reid International Airport recorded 0.50 inch from June 15 to September 30. The average is 1.03 inches, the Las Vegas Review-Journal reported. A National Weather Service meteorologist told the paper it was the 29th driest monsoon season on record.

When did the rain fall?

In two main rounds. The Clark County Regional Flood Control District posts readings from rain gauges across the valley, and we added up 146 of them.

The storm of September 28 and 29 was the largest, with 49% of the season's rain at those gauges. The airport recorded 0.23 inch on September 28, its wettest day since February 18.

The storms of August 12 to 16 were close behind, with 40%.

Which parts of the valley got the most rain?

It depends on the storm. On the west and southwest sides, including Summerlin, most of the season's rain came in the September storm. On the northwest, north and east sides, most of it came in mid-August. There the September storm brought only 12% to 14% of the season's rain. On the Henderson and southeast side the two rounds were about even.

The side-of-town lines are our own rough split of the map. Read this as a guide, not an official record.

How fast did the rain come down?

Fast on the west side. On September 28, a flood control district gauge in northwest Summerlin recorded 0.86 inch between 7 and 8 PM. That is more than half of the 1.49 inches it recorded all season, the most of the 146 gauges.

Most of the valley saw far less. Half of the valley gauges recorded 0.12 inch or less for the two-day storm.

Were there flood alerts in the valley?

Yes, flood advisories. The National Weather Service issued flood advisories for parts of the valley on August 12, 13 and 14 and on September 28. A flood advisory is a lower level of alert than a flood warning.

If the season was dry, why can water still end up in the wrong place?

Because a roof collects rain over its whole area. Without gutters, that water runs off the roof edge and lands at the foundation line. The U.S. Geological Survey figures one inch of rain on a 40-by-70-foot roof at about 1,743 gallons. By that measure, the 0.86 inch that fell in one hour in northwest Summerlin is about 1,500 gallons on a roof that size.

What should I look for on a house without gutters?

Walk the home after a rain if it is safe. Look for soil washed out below the roof edges, streaks on the stucco, water dumping near doors, splash marks on windows, pooling near the slab, washed-out landscape rock and water crossing walkways. Look at the roof valleys too.

A home may not need gutters on every inch of roofline. Some homes need a full system. Others need targeted runs above patios, entries, low spots or roof valleys.

What do rain gutters change?

Seamless rain gutters collect roof runoff and direct it through downspouts to discharge points away from the foundation, stucco walls and landscaping. City Seamless Rain Gutter fabricates gutters on site, with no joints along the length, and uses .032-gauge aluminum as its standard material. Every installation is backed by a 30-year material warranty and a 5-year workmanship guarantee.

Frequently asked questions

Was the 2026 monsoon season wetter than normal in Las Vegas?

No. The airport recorded 0.50 inch of rain. The average is 1.03 inches, the Las Vegas Review-Journal reported.

What was the biggest storm of the 2026 monsoon season in Las Vegas?

Across the valley as a whole, the storm of September 28 and 29. On the northwest, north and east sides, the storms of August 12 to 16 brought more rain.

Does City Seamless give free estimates?

Yes. City Seamless Rain Gutter gives free on-site estimates. Call or Text 725-502-3114.

Related City Seamless resources

Saw water in the wrong place this season? Request a free on-site estimate or Call or Text 725-502-3114.

About City Seamless Rain Gutter

Company: City Seamless Rain Gutter, family-owned in Las Vegas, with trade roots dating to 1976
Nevada Contractor Licenses: #0081882 and #0082656
Awards: Best of Las Vegas, Las Vegas Review-Journal, 2024 and 2025
Installations: 30,000+ homes installed
Standard Material: .032-gauge aluminum
Warranty: 30-year material warranty and a 5-year workmanship guarantee
Contact: Call or Text 725-502-3114 | cityseamless.com

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