Las Vegas, NV Weather Forecast & Climate Guide
Las Vegas has a hot desert climate similar to Phoenix but at a slightly higher elevation. The city experiences extreme heat in summer and mild winters.
Climate type: Hot desert (Köppen BWh)
Las Vegas Climate Overview
Summer temperatures frequently exceed 100°F (38°C) with very low humidity. Winters are mild with highs in the 50s-60s°F (10-15°C). Annual rainfall is only about 4 inches.
Las Vegas experiences extreme heat from May through September. Summer monsoons can bring flash flooding. Winter occasionally sees snow on surrounding mountains.
Las Vegas Weather by Season
spring
Spring is Las Vegas at its best — warm sunny days in the 70s-80s°F, cool nights, clear skies, and no rain. March and April draw crowds for a reason.
summer
Summers are brutally hot with highs routinely exceeding 105°F from June through August and occasional days over 115°F. The heat is dry but still dangerous.
fall
Fall cools off through September and October. By November, highs are in the 60s-70s°F with crisp nights — perfect outdoor weather.
winter
Winters are mild, sunny, and dry with highs in the 50s-60s°F and cold nights in the 30s-40s°F. Snow on the surrounding mountains is common but rarely sticks in the valley.
Las Vegas Average Monthly Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 57° | 62° | 70° | 78° | 88° | 99° | 104° | 102° | 95° | 82° | 68° | 57° |
| Low °F | 39° | 44° | 50° | 57° | 66° | 75° | 81° | 80° | 72° | 59° | 47° | 38° |
Best Time to Visit Las Vegas
March-May or October-November for ideal outdoor weather. Summer is too hot for anything outdoors; winter is great for shows, dining, and pool season for the cold-tolerant.
Severe Weather Risks
- Extreme heat
- Flash flooding
- Dust storms
- Wildfires
- Drought
Weather Facts About Las Vegas
- >Las Vegas receives only about 4 inches of rain per year — drier than most of the Sonoran Desert.
- >The surrounding mountains can get feet of snow in winter while the valley stays dry and sunny.
- >Summer monsoon flash floods are surprisingly dangerous in the desert — water rushes through washes in minutes.
Las Vegas Weather FAQ
When is the best time to visit Las Vegas?
March-May and October-November. Mild temperatures in the 70s-80s°F, sunshine, low humidity, and no extreme heat. Winter is also nice if you don't need the pool.
How hot is Las Vegas in summer?
Extremely hot. Highs average 104-106°F in July, with record highs above 115°F. Pavement and sand can burn skin, and heat illness is a real risk for tourists outdoors.
Does Las Vegas get cold in winter?
Days are mild (50s-60s°F) but nights can dip into the 30s°F. Occasional cold snaps drop temperatures into the 20s°F. Snow in the valley is rare — maybe once every few years for a dusting.
Does it rain in Las Vegas?
Rarely. Annual rainfall is only about 4 inches. When it does rain, it often comes in intense monsoon thunderstorms that can trigger flash floods in washes and underpasses.