Key facts: Las Vegas
- Las Vegas gets little rain, but hard desert ground sheds it fast, and the valley relies on a network of detention basins and channels.[1]
- Summer storms can turn streets into channels in minutes.
- Never enter a wash, and move cars to higher ground if a warning is issued.
Flash floods on hard ground
Summer storms can turn streets into channels in minutes. Never enter a wash, and move cars to higher ground if a warning is issued.
Hard water and hot attics
Mineral-heavy water wears valves and water heaters, while AC units in hot attics can overflow. Check drain pans twice a year.
Flood claims recorded in Clark County
Las Vegas sits in Clark County. FEMA publishes every National Flood Insurance Program claim with personal details removed, which gives a plain record of where water has reached insured buildings here.
| Measure | Count |
|---|---|
| Flood insurance claims on record | 626 |
| Year with the most claims | 1999 (122) |
| Largest named event | Flooding (140) |
| Claims outside high-risk A and V zones | 53% |
| Claims on buildings built before 1975 | 29% |
County-wide counts of insured claims only. Uninsured losses, burst pipes and appliance leaks are not in this data.
What the Las Vegas claim record shows
For Las Vegas homes, the local precedents are the events behind the most Clark County claims: Flooding (140 claims), Las Vegas Flash Flooding (2 claims) and Tropical Storm Hilary (1 claims).
About 53% of claims with a recorded zone came from outside the high-risk A and V zones, so a moderate-risk label does not mean a Las Vegas home stays dry.
A newer Las Vegas home is not exempt: 71% of claims with a known build date involved homes built in 1975 or later.
Federal disaster history for Clark County
FEMA lists 14 federal declarations covering Clark County. The most common types are fire (5), biological (2) and severe storm (2). The latest are Covid-19 Pandemic in 2020, Covid-19 in 2020 and Carpenter 1 Fire in 2013. When a declaration is open, federal aid may be available to Las Vegas residents, so ask about it alongside your insurance claim.
Las Vegas weather and your home
Weather records for Las Vegas from 2015 through 2024 average 5 inches of precipitation a year, and January and February are the wettest months. The area averages 0.2 days a year with an inch or more.
Frost reaches Las Vegas on about 11 nights a year, but hard freezes are less common, which can leave pipes in attics and outer walls poorly protected in a cold snap.
With about 137 days a year at 90°F or hotter, Las Vegas air conditioners run hard, and a clogged condensate line can soak a ceiling without warning.
When rain falls in Las Vegas
Seasonal averages for Las Vegas, 2015 through 2024. Plan roof, gutter and sump pump checks before the wettest stretch.
| Season | Average | Share of year |
|---|---|---|
| January to March | 2.1 in | 44% |
| April to June | 0.5 in | 10% |
| July to September | 1.1 in | 23% |
| October to December | 1.1 in | 23% |
Modeled from Open-Meteo historical weather data. Precipitation includes rain and melted snow.
Las Vegas home checklist from these records
- Don't rely on recent quiet years. Only 5% of Clark County claims date from 2015 or later, so older floods still show what can happen.
- Check roof flashing and drains before January, the wettest month in Las Vegas.
- Clear the air conditioner drain line before the 137 days of 90°F heat begin.
- Keep dated photos of each room. After Flooding, 140 insured Clark County owners filed claims at about the same time.
What to tell the Las Vegas contractor
- Whether the leak is in an attic
- Your water heater's age
- Whether a wash is nearby
Services Las Vegas callers ask about
Questions
Las Vegas water damage questions
Do you cover Henderson?
Yes, Henderson and North Las Vegas are in our coverage data.
Can a dry climate dry my home by itself?
Surfaces yes, but walls and floors still need checking.