January 2025 set a global heat record, with temperatures rising 1.75°C above the historical average. In the US, the year started off cold, but quickly heated up. By June, the national average hit 71.2°F, 2.8°F above average—the seventh-hottest January-June ever recorded.
For many Americans, year-round sunshine feels more like a luxury than a concern. After all, the heat means relief from harsh winters, and beach days out with your family. However, as summers grow increasingly dangerous, it’s important to know the hottest cities in the US.
What are the Hottest Cities in the US by Temperature?
Apart from the scorching heat, America’s hottest cities also offer sunny skies, active lifestyles, and unique desert charm. While extreme heat presents real challenges, it also drives growth and innovation in these cities.
So, if you’re wondering where the heat hits hardest, here are the 7 hottest cities in the US:
1. Phoenix, Arizona
- Average Annual Temperature: 78.6 °F
- Average Summer Temperature: 106°F
- Humidity: 20%
Phoenix is one of the fastest growing cities in the US, and it’s not just the population that’s heating up. In 2024, there were a staggering 113 consecutive days of temperatures above 100°F, spanning from May 27 to Sep 16, the longest stretch in the city’s history.
However, city officials are fighting back against the extreme Phoenix forecast with innovative cooling strategies and urban planning. The city aims to provide 25% shade coverage by 2030, with strategic tree-planting to naturally reduce temperatures across the city.
» Homes for Sale in Phoenix: Find homes in the hottest city in the US.
2. Las Vegas, Nevada
- Average Annual Temperature: 72.3 °F
- Average Summer Temperature: 105°F
- Humidity: 20%
Las Vegas is no stranger to extremes, especially when it comes to heat. In July 2025, the city hit a record-breaking 120°F, topping its previous high of 117°F. With over 70 triple-digit days a year, Vegas ranks among the hottest US cities.
Still, people move to Vegas for its zero state income tax, job growth, and affordable housing. Most properties come with efficient cooling, insulation, and heat-smart design. Additionally, shaded parks and pools help the locals stay cool, even when the desert heats up.
» Homes for Sale in Las Vegas: Find homes in one of the hottest places in the US.
3. Tucson, Arizona
- Average Annual Temperature: 69.7°F
- Average Summer Temperature: 70.6
- Humidity: 29.2%
If you’re ever betting on the day’s weather in Tucson, go with “sunny” and you’ll win more than 96% of the time. Tucson made headlines in 2024 as one of the hottest cities in the world, with an average temperature of 90°F, and 78 days over 100°F.
This heat means year-round outdoor activities even in winter, and weather that rarely gets in the way of your plans. Summers may be hot, but the dry heat keeps the nights comfortable. Thanks to seasonal rains, there’s more greenery than you’d expect in a desert city.
» Homes for Sale in Tucson: Find homes in one of the hottest places in the US.
4. Riverside, California
- Average Annual Temperature: 64.2°F
- Average Summer Temperature: 82°F to 93°F
- Humidity: 43% (August) to 56% (April)
Riverside recorded triple-digit heat from March through November last year, with an all-time high of 118°F; hotter than Las Vegas and just below Phoenix. Average temperatures range from 43°F in winter to 94°F in summer, with highs often surpassing 103°F.
Despite the heat, Riverside attracts homebuyers with its affordable housing, family-friendly neighborhoods, and convenient proximity to Los Angeles. Its dry climate and mild winters create the perfect backdrop to enjoy outdoor activities throughout the year.
» Homes for Sale in Riverside: Discover homes in one of the hottest places in the US.
5. McAllen, Texas
- Average Annual Temperature: 75.2°F
- Average Summer Temperature: 95°F
- Humidity: 60%
McAllen endures some of Texas’ most extreme summer heat. Its southern location, desert proximity, and Gulf humidity combine to make the weather even hotter. Humidity is also a major factor, turning already high temperatures into dangerous conditions.
Heat was intense in McAllen throughout 2024. It kicked off early, with heat indices hitting 115°F in May. By July, the combination of 100°F temps and 81% humidity made it feel like 124°F. But hey, at least the warm weather keeps the crops happy and your heating bills low!
» Homes for Sale in McAllen: Find homes in one of the hottest cities in the US.
6. San Antonio, Texas
- Average Annual Temperature: 69.8°F
- Average Summer Temperature: 96.6°F
- Humidity: 73%
San Antonio’s heat is fueled by its flat terrain, Gulf Coast humidity, and warm air from Mexico. The urban heat island effect adds up to 9°F in some neighborhoods, and affects nearly 90% of residents. 100°F days are now three times more frequent than they were 30 years ago.
Despite the long and intense summers, San Antonio offers plenty of green spaces and shaded areas to help residents stay cool and active. Its warm climate also means mild winters, with outdoor festivals, sports, and community events in every season.
» Homes for Sale in San Antonio: Explore the hottest homes in one of the US’ hottest cities.
7. College Station, Texas
- Average Annual Temperature: 68.9°F
- Average Summer Temperature: 89°F to 96°F
- Humidity: 67%
College Station sits between Austin, Waco, and Houston, with a climate mix of all three cities. It’s hotter than Austin, less humid than Houston, and generally warmer than Waco. Southerly winds and Gulf heat drive temperatures up, with little terrain to block it.
College Station experienced a scorching 2024. Warmth peaked in August, when a heat index of 110° triggered nearly a month of heat warnings and advisories. Despite the heat, the city remains a top choice for homebuyers, thanks to its strong job market and low cost of living.
» Homes for Sale in College Station: Find homes in one of the hottest spots in the US.
What is the Hottest Place in the US?
Death Valley in California is the hottest place in the world today. This desert furnace recorded the world’s highest air temperature of 134°F on July 10, 1913. Summer temperatures routinely soar above 120°F, making it one of the most extreme environments on the planet.
Phoenix, Arizona, is America’s hottest city, with average summer highs exceeding any other metropolitan area. Phoenix, alongside other desert cities like Las Vegas and Riverside, sees triple-digit temperatures for weeks on end.
How to Prepare for Extreme Heat?
As record-breaking temperatures become more common, it’s crucial to take heat seriously, especially in the country’s hottest cities. Here are a few tips on how to stay safe when the mercury rises:
- Hydrate Constantly: Don’t wait until you’re thirsty. Drink water regularly throughout the day, especially if you’re outdoors.
- Keep Your Home Cool: Use fans, black-out curtains, and air conditioning if possible. Even a few degrees of cooling can make a big difference during a heat wave.
- Avoid Peak Heat: Stay indoors or in the shade between 10am and 4pm, when temperatures are usually at their highest. If you don’t have a way to cool down indoors, find a local cooling center or public space with air conditioning.
- Know the Signs of Heat Illness: Dizziness, confusion, and a rapid heartbeat can signal heat exhaustion or stroke. If you or anyone else is struggling with these symptoms, seek help immediately.
Ready to Move to One of America’s Hottest Cities?
As temperatures rise across the country, choosing the right city to call home matters more than ever. Whether you’re relocating or buying your first property, you can start your search on Houzeo, America’s best home buying website.
