All-Time Record Maximum Temperature by State
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| State | Location | Record High | Date |
| Alabama | Centerville | 112 °F | September 6, 1925 |
| Arizona | Lake Havasu City | 128 °F | June 29, 1994 |
| Arkansas | Ozark | 120 °F | August 10, 1936 |
| California | Greenland Ranch | 134 °F | July 10, 1913 |
| Colorado | Sedgwick
Las Animas | 114 °F | July 11, 1954
July 1, 1933 |
| Connecticut | Torrington
Danbury | 106 °F | August 23, 1916
July 15, 1995 |
| Delaware | Millsboro | 110 °F | July 21, 1930 |
| Florida | Monticello | 109 °F | June 29, 1931 |
| Georgia | Louisville
Greenville 2 NNW | 112 °F | July 24, 1952
August 20, 1983 |
| *Hawaii | Waianae, Oahu
Mahukona, Big Island
Kaanapali, Maui
Puunene, Maui
Puunene, Maui
Sea Mountain, Big Island | *98 °F | July 1915
prior to 1941
prior to 1941
Aug. 19, 1951
July 14, 1957
Sept. 1990 |
| Idaho | Orofino | 118 °F | July 28, 1934 |
| Illinois | East St. Louis | 117 °F | July 14, 1954 |
| Indiana | Collegeville
(South side of Renssalaer) | 116 °F | July 14, 1936 |
| Iowa | Keokuk No. 2 | 118 °F | July 20, 1934 |
| Kansas | Fredonia
Alton | 121 °F | July 18, 1936
July 24, 1936 |
| Kentucky | Greensburg | 114 °F | July 28, 1930 |
| Louisiana | Plain Dealing 4W | 114 °F | August 10, 1936 |
| Maine | North Bridgton | 105 °F | July 4 & 10, 1911 |
| Maryland | Boettcherville
Keedysville
Cumberland
Cumberland
Frederick | 109 °F | July 3, 1898
August 6, 1918
August 6 & 7, 1918
July 10, 1936
July 10, 1936 |
| Massachusetts | New Bedford
Chester | 107 °F | August 2, 1975 |
| Michigan | Mio
Stanwood | 112 °F | July 13, 1936 |
| Minnesota | Beardsley | 115 °F | July 29, 1917 |
| Mississippi | Holly Springs 2N | 115 °F | July 29, 1930 |
| Missouri | Union
Warsaw | 118 °F | July 14, 1954 |
| Montana | Glendive
Medicine Lake | 117 °F | July 20, 1893
July 5, 1937 |
| Nebraska | Geneva
Hartington
Minden | 118 °F | July 15, 1934
July 17, 1936
July 24, 1936 |
| Nevada | Laughlin | 125 °F | June 29, 1994 |
| New Hampshire | Nashua | 106 °F | July 4, 1911 |
| New Jersey | Runyon | 110 °F | July 10, 1936 |
| New Mexico | Waste Isolation Pilot Plant (nr. Loving) | 122 °F | June 27, 1994 |
| New York | Troy | 108 °F | July 22, 1926 |
| North Carolina | Fayetteville | 110 °F | August 21, 1983 |
| North Dakota | Steele | 121 °F | July 6, 1936 |
| Ohio | Gallipolis (near) | 113 °F | July 21, 1934 |
| Oklahoma | Alva
Altus
Poteau
Altus
Tipton | 120 °F | July 18, 1936
July 19, 1936
August 10, 1936
August 12, 1936
June 27, 1994 |
| *Oregon | Umatilla | *117 °F | July 27, 1939 |
| Pennsylvania | Phoenixville | 111 °F | July 9 & 10, 1936 |
| Rhode Island | Providence | 104 °F | August 2, 1975 |
| South Carolina | Columbia | 113 °F | June 29, 2012 |
| South Dakota | Gann Valley
Fort Pierre | 120 °F | July 5, 1936
July 15, 2006 |
| Tennessee | Perryville | 113 °F | July 29, 1930
August 9, 1930 |
| Texas | Seymour
Monahans | 120 °F | August 12, 1936
June 28, 1994 |
| Utah | St. George | 117 °F | July 5, 1985 |
| *Vermont | Vernon | *105 °F | July 4, 1911 |
| Virginia | Columbia
Balcony Falls | 110 °F | July 5 & 7, 1900
July 15, 1954 |
| Washington | Wahluke
Ice Harbor Dam | 118 °F | July 24, 1928
August 5, 1961 |
| West Virginia | Moorefield
Martinsburg | 112 °F | August 4, 1930
July 10, 1936 |
| Wisconsin | Wisconsin Dells | 114 °F | July 13, 1936 |
| Wyoming | Basin
Diversion Dam | 115 °F | August 8, 1983
July 15, 1988 |
| Alaska | Fort Yukon | 100 °F | June 27, 1915 |
| Puerto Rico | Mona Island | 104 °F | July 2, 1996 |
| Virgin Islands | Cruz Bay (SJ)
Charlotte Amalie (ST)
Charlotte Amalie (ST) | 99 °F | July 31, 1988
August 4, 1994
June 23, 1996 |
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