The 10 Warmest States in the United States

February 12, 2024

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Sandy beach in Florida

The United States is known for its diverse range of weather and temperatures. States in the northern and midwestern states usually have temperatures in their mid-40s (°F), while states in the south tend to average temperatures in the 60s (°F).

One of the reasons for the warm temperatures in the southeastern, south-central, and central states is the Bermuda High. This is a high-pressure system located over the Atlantic Ocean that creates warm-to-hot humidity and a subtropical climate.

In this article, we’ll look at which of the 50 states are the warmest based on their average temperature in 2023. The data used is sourced from the National Centers for Environmental Information.

1. Hawaii

People sunbathing on the beach and swimming in the water at Hanauma bay, Hawaii
Hanauma bay, Hawaii
Average temperature: 77.4°F (25.2°C)
Warmest temperature ever recorded: 100°F (37.7°C), Pahala, 1931

Hawaii ranks as the warmest state in the US, with an average temperature of 77.4°F (25.2°C). This is up 7.3°F from the mean temperature from 1901 to 2000.

As Hawaii is over 2,000 miles away from the nearest mainland, air crossing the ocean has enough time to moderate its harsher qualities. For example, by the time arctic air reaches Hawaii, it may have increased by as much as 100°F (37.7°C).  

There are two seasons in Hawaii. Summer generally lasts from May to October, while Winter is from October to April. However, the island state is located in the tropics, where the temperatures are fairly consistent throughout the year.

The warmest temperature ever recorded in Hawaii was 100°F (37.7°C). It was recorded on 27 April 1931 in Pahala on the island of Hawaiʻi (the largest of the Hawaiian islands). 

2. Florida

View from a plane above Miami, Florida
Aerial view of Miami, Florida
Average temperature: 73.3°F (22.9°C)
Warmest temperature ever recorded: 109°F (42.7°C), Monticello (Charlottesville), 1931

Next on the list is Florida, a southeasternmost state. The Sunshine State has an average temperature of 73.3°F (22.9°C), which is 3.2°F warmer than the mean temperature from 1901 to 2000. 

Northern and central regions of Florida have a subtropical climate, while South Florida has a tropical climate. The state has a defined rainy season from May to October. From October onwards, Florida has a dry season, which is often so severe that water restrictions are imposed. 

The warmest recorded temperature in Florida was 109°F (42.7°C). It was recorded in Monticello, Charlottesville, on 29 June 1931. July is typically the warmest month in Florida, with temperatures ranging from 75.2°F (24°C) to 93.2°F (34°C). 

Florida is one of the most humid states in the country, as the average relative humidity in Florida is 74.5%. The state’s annual precipitation in 2022 was 54.61 inches, which largely contributes to the state’s humidity and notable swampy landscape. 

3. Louisiana

Jazz musicians playing in the French Quarter of New Orleans
Jazz musicians playing in the French Quarter of New Orleans
Average temperature: 69.7°F (20.9°C)
Warmest temperature ever recorded: 114°F (45.5°C), Plain Dealing, 1936

With an average temperature of 69.7°F (20.9°C), Louisiana is the third warmest state in the US. The mean temperature between 1901 and 2000 was 66.4°F (19.1°C). 

The warmest temperature ever recorded in Louisiana was 114°F (45.5°C). It was recorded on 10 August 1936 in Plain Dealing, Bossier Parish. The warmest month in Louisiana is typically July or August, where the daily temperatures typically average above 78°F (25.5°C). 

Louisiana typically has short, mild winters and hot summers. The Gulf of Mexico helps regulate the temperature in the state’s southern regions, but the northern areas have more variable rainfall and temperatures. 

The first half of the century had higher temperatures than the latter half. From 1959 to 1983, Louisiana experienced some of its lowest average annual temperatures; 1976 had an average of just 64.3°F (17.9°C), the lowest average since records began in 1885. 

4. Texas

View of the Chisos Mountains from Big Bend National Park, Texas
Big Bend National Park, Texas
Average temperature: 68.1°F (20.1°C)
Warmest temperature ever recorded: 120°F (48.8°C), Monahans and Seymour, 1994 and 1936

Texas is the fourth-warmest state in the US, with an average temperature of 66.5°F (19.1°C) in 2023. The country’s rainy season is typically March to May, although September and October often have a brief rainy season, too. Snow is uncommon in the state, although sleet and freezing rain do occur during rainfall in colder weather. The lowest temperature ever recorded in Texas was -23°F (-30°C), which occurred in Tulia in 1899 and Seminole in 1933. 

The warmest temperature ever recorded in Texas was 20°F (48.8°C). It was recorded twice; the first recording was made in 12 August 1936 in Seymour, and the second was made in Monahans on 28 June 1994. The mean temperature from 1901 to 2000 was 64.6°F (18.1°C). 

Texas has the most tornadoes of any state in the US. Tornadoes result from thunderstorms with warm, humid air colliding with cold, dry air. An average of 132 tornadoes occur in Texas each year, although some areas are more affected than others. Tornadoes that form in the Gulf of Mexico are more likely to hit the upper coastal regions of Texas than anywhere else. 

5. Mississippi

Tugboat heads up the Mississippi River near Vicksburg
Tugboat heading along the Mississippi River
Average temperature: 66.7°F (19.3°C)
Warmest temperature ever recorded: 115°F (46.1°C), Holly Springs, 1930

The southern state of Mississippi is next on the list. In 2023, it had an average temperature of 66.7°F (19.3°C). From 1901 to 2000, the mean temperature was 63.6°F (17.5°C), 3.4°F lower than the current average.  

While temperatures often exceed 100°F (37.7°C) in some areas of Mississippi, the temperatures also drop to below freezing every five years or so. 115°F (46.1°C) is the highest temperature ever recorded in Mississippi. It was recorded in Holly Springs, a city near the border with Tennessee, on 29 July 1930. 

The lowest temperature recorded in the state was -19°F (-28°C), recorded in Cornith, which also lies on the state line with Tennessee. This extreme temperature occurred on 30 January 1966. 

Mississippi’s climate is humid and subtropical. It has long, hot summers and mild winters, with evenly distributed rain throughout the year. This state has fairly extreme weather. It’s prone to floods and droughts, hurricanes, and destructive thunderstorms. Tornadoes also occur, particularly during spring. 

6. Georgia

People standing underneath the Atlanta Braves sign at Truist Park on a warm summers day.
Truist Park, home of the Atlanta Braves
Average temperature: 65.6°F (18.7°C)
Warmest temperature ever recorded: 112°F (44.4°C), Greenville and Louisville, 1983 and 1952

With an average temperature of 65.6°F (18.7°C), Georgia was the sixth warmest state in the US. From 1901 to 2000, the mean temperature was 65.4°F (17.4°C), which shows an increase of 2.2°F. 

The warmest temperature ever recorded in Georgia was 112°F (44.4°C). It was recorded twice; the first recording was in Greenville on 20 August 1983, and the second recording was taken in Louisville on 24 July 1952. 

Georgia has a humid subtropical climate characterized by long, hot summers and short, mild winters. July is typically the warmest month in the southeastern state.

The climate of different regions in Georgia depends on how close the areas are to the Atlantic Ocean and the Gulf of Mexico and their altitude. The area near the Georgia-Florida border, extending from the Atlantic Ocean, has a subtropical climate. However, mountainous areas in northern areas are further from the ocean and have much cooler temperatures. 

7. Alabama

Sun setting over condos near the beach at Orange Beach, Alabama
Sunset over Orange Beach, Alabama
Average temperature: 65.5°F (18.6°C) 
Warmest temperature ever recorded: 112°F (44.4°C), Centerville, 1925

The seventh warmest state in the United States is Alabama, in the southeastern region. In 2023, it had an average temperature of 65.5°F (18.6°C), which is 2.4°F warmer than the mean temperature during the period 1901 to 2000. 

Alabama has a subtropical climate. The state is exposed to warm, humid air from the Gulf of Mexico and dry air from the plains of central North America. Alabama has year-round precipitation, mild winters, and hot summers. 

The warmest temperature ever recorded in the state was 112°F (44.4°C). This was recorded in Centreville, Bibb County. It occurred on 6 September 1925. Alabama’s lowest recorded temperature is -27°F (-32°C), which was recorded in New Market on 30 January 1966. 

8. South Carolina

Drone view across Daufuskie Island, South Carolina on a clear and sunny day
Daufuskie Island, South Carolina
Average temperature: 64.3°F (17.9°C)
Warmest temperature ever recorded: 113°F (45°C), Colombia University of South Carolina, 2012

Next on the list is South Carolina, which had an average temperature of 64.3°F (17.9°C). As with other states on this list, South Carolina has a subtropical climate, although mountainous areas in the northern region tend to be cooler. July is the warmest month in South Carolina, with temperatures ranging from 78.8°F (26°C) to 83.7°F (28.7°C) in the last decade. 

The warmest temperature ever recorded in South Carolina was 113°F (45°C). It was taken at the University of South Carolina in Columbia on 29 June 2012. Of the ten states featured on the list, this warmest temperature is the only one recorded in the 21st century. 

High elevations in the northwest regions tend to have the highest precipitation levels in the state. Between 70 and 80 inches of rainfall can fall at the highest elevations

The central regions of the state tend to have the lowest levels. However, precipitation levels vary geographically, seasonally, and annually across South Carolina. 

South Carolina’s humidity levels are fairly consistent throughout the year, although the summer often has the highest levels. The lowest humidity levels (usually found upstate) average at 69%, while the highest humidity levels are found in coastal regions and average at 73%. 

9. Arkansas

View across Lake Ouachita, Arkansas on a warm summer's day.
Lake Ouachita, Arkansas
Average temperature: 62.9°F (17.2°C)
Warmest temperature ever recorded: 120°F (48.8°C), Ozark, 1936

Coming in joint ninth place is Arkansas, which had an average temperature of 62.9°F (17.2°C) in 2023. The state has a humid subtropical climate, with significant precipitation each month and mild temperatures. 

The warmest temperature ever recorded in Arkansas was 120°F (48.8°C). This recording was taken in Ozark, Franklin County on 10 August 1936. By comparison, Arkansas’ mean temperature in the period 1901 to 2000 was 60.4°F (15.7°C). 

The average temperature in Arkansas has fluctuated over the past century. The state’s average temperature in 1917 was just 58.3°F (14.6°C), but it had risen to 63.3°F (17.3°C) by 1921. This fluctuation continued into the 21st century. The average temperature in 2012 was 63.6°F (17.5°C), but the average in 2014 had dropped to 58.7°F (14.8°C). 

10. Oklahoma

View of Oklahoma City
Oklahoma City
Average temperature: 61.9°F (16.6°C)
Warmest temperature ever recorded: 120°F (48.9°C), Recorded at 4 locations in 1936

Okalhoma ranks in tenth place with an average temperature of 61.9°F (16.6°C).

Oklahoma, located in the southern region of the United States, experiences a diverse range of weather patterns and climates due to its geographical location. Summers in Oklahoma are typically hot and humid, with temperatures frequently reaching into the high 90s°F, and occasionally surpassing 100°F (38°C). Humidity levels can be quite high, particularly in the eastern part of the state, leading to heat index values that can make it feel even hotter.

Winters in Oklahoma are generally milder compared to northern states, but they can still bring cold temperatures and occasional snowfall, especially in the northern and western regions

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