10 All-Time Hottest Weather Temperature Days in Las Vegas

Knoji reviews products and up-and-coming brands we think you'll love. In certain cases, we may receive a commission from brands mentioned in our guides. Learn more.
The all-time hottest temperatures ever recorded in Las Vegas, and in the state of Nevada.

These are the ten all-time hottest weather temperature days in the history of Las Vegas, Nevada. The temperature data for Las Vegas dates back to 1937.

Las Vegas is one of the most visited cities in the world, and anyone who has visited here, or lives in the city, knows, it can get pretty hot in Vegas. I've been in Las Vegas a few dozen times, and every time I've been there in the summer the temperature was over 100 degrees. Thankfully, all the casinos and hotels in Vegas keep the air way up.

The hottest temperature ever recorded in Las Vegas is 117 degrees, which occurred on both July 19, 2005 and July 24, 1942. The hottest temperature ever recorded in the state of Nevada is 125 degrees, which occurred on June 29, 1994 in Laughlin.

One-hundred degree days are not at all unusual in Vegas. Going back to 1937, in at least one year every day in the months of May, June, July, August and September have had at least one 100 degree temperature day. The earliest date a 100 degree weather day occurred since 1937 is May 1st. The latest when a 100 degree day occurred is October 3rd.

Image Source

10 All-Time Hottest Weather Temperatures in Las Vegas

T-1. June 20, 2017 - 117 degrees

T-1. June 30, 2013 - 117 degrees

T-1. July 19, 2005 - 117 degrees

T-1. July 24, 1942 - 117 degrees

T-3. July 5, 2007 - 116 degrees

T-3. July 18, 2005 - 116 degrees

T-3. July 17, 2005 - 116 degrees

T-3. July 16, 1998 - 116 degrees

Image Source by StuSeeger

T-3. July 5, 1985 - 116 degrees

T-3. August 3, 1979 - 116 degrees

T-3. August 1, 1979 - 116 degrees

T-3. July 5, 1973 - 116 degrees

It has been 116 degrees in Las Vegas at on other dates also, but just the last seven are listed.

As the hottest temperature data above shows, the hottest month of year in Las Vegas is July, which has an average daily temperature of 91.7 degrees. The second hottest month is August at 89.8 degrees, followed by June at 85.8 degrees and September at 81.7 degrees.

Las Vegas Climate

As you can see, it is certainly hot in Las Vegas and sunny. The average high in July is a rather warm 102.4 F degrees and Las Vegas averages 294 sunny days per year.

As they say, it is a dry heat in Las Vegas. This helps somewhat, since high humidity like they have in the Midwest, eastern and southern United States, is really miserable and sometimes life threatening.

Las Vegas has an average humidity of 20% or lower between April and August, the hottest months in Las Vegas, around 10% or less during the hottest times of the day. Every home and building in Las Vegas does have air conditioning, which helps, but sure makes it feel hot when walking outside.

Even though the humidity is low, a person can still easily get heat exhaustion or heat stroke while outdoors. It is important to drink a lot of water while outside, whether working or just strolling down the Las Vegas strip and stay away from alcohol. Being drunk and walking in this heat is very dangerous to the health.

Las Vegas is in the Mojave Desert, one of the hottest places on Earth and certainly the hottest place in the United States. Being so dry, you might think it cools off at night that is not the case during the summer months. The overnight lows are many times in the mid 80s.

For more see 10 All-Time Hottest Weather emperature Days in Phoenix

10 All-Time Hottest Weather Temperature Days in Los Angeles

10 All-Time Hottest Weather Temperature Days in Grand Canyon National Park