Special Report

The 30 Hottest Cities in America

10. Waco, TX
> Avg. number of 90°F+ days:
111
> Record high: 112°F
> Avg. daily high in July: 96.3°F
> Avg. daily high in August: 96.8°F

The average daily high in Waco, which had more hot days in 2015 than only a handful of other U.S cities, was 77.8°F — one of the highest average temperatures of any U.S. city. The summer months in Waco are especially hot. The average highs are 96.3°F in July and 96.8°F in August, respectively, the ninth and seventh highest such temperatures of any city in the country.

9. Corpus Christi, TX
> Avg. number of 90°F+ days:
112
> Record high: 109°F
> Avg. daily high in July: 93.1°F
> Avg. daily high in August: 94.4°F

In a given year, the average daily high in Corpus Christi is 81.6°F, the 10th highest average of any city in the country. The temperature is frequently even higher in the city. On average, temperatures exceed 90°F on 112 days each year. Though the city ranks as one of the hottest in the country, 2015 was not an especially hot year for Corpus Christi. The average temperature last year of 72.4°F is just about average for the city based on 68 years of record keeping.

8. San Angelo, TX
> Avg. number of 90°F+ days:
114
> Record high: 111°F
> Avg. daily high in July: 95.1°F
> Avg. daily high in August: 94.7°F

San Angelo is one of 15 Texas cities to rank among the 30 hottest in the country. Year over year, the city averages 114 days where thermometers hit at least 90°F. Despite the heat for a relatively large part of the year, temperatures in San Angelo also get below freezing more often than most of the hottest cities. Temperatures hit 32°F or below in the city an average of 51 days a year, more than in only 5 of the hottest cities.

7. Austin, TX
> Avg. number of 90°F+ days:
114
> Record high: 112°F
> Avg. daily high in July: 95.6°F
> Avg. daily high in August: 97.0°F

Though Austin has the same number of days with temperatures reaching at least 90°F in a given year as San Angelo, Austin has a slightly higher record temperature and generally hotter summers than its neighbor to the northwest. Austin also gets more precipitation than San Angelo. Each year, the city has an average of about 34 days with more than a hundredth of an inch of precipitation. In San Angelo, there are only about 21 days with such precipitation.

6. San Antonio, TX
> Avg. number of 90°F+ days:
116
> Record high: 111°F
> Avg. daily high in July: 95.0°F
> Avg. daily high in August: 97.5°F

With an average temperature of 70.7°F, last year was the ninth warmest on record for San Antonio. Temperatures in the city hit 90°F in nearly a third of all days a year on average. San Antonio has some of the hottest summers of any city in the country. The average high in August is 97.5°F, hotter than in any other U.S. city with the exception of Las Vegas and Phoenix.