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All-time record cold lows in all 50 states

All-time record cold lows in all 50 states

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  • The record low temperatures for all states are between 12 and minus 80 degrees.
  • Even Florida has experienced an all-time record low below zero.
  • Montana is the coldest Lower 48 on record at minus 70 degrees, while Alaska is the coldest on record at minus 80 degrees.

So far this winter we’ve seen several bouts of shivering Arctic air across the United States, but getting anywhere close to all-time record cold temperatures in any state is a rare feat.

The lower 48 records range from minus 2 degrees to minus 70 degrees. The chart below shows the coldest temperature on record in each state, according to NOAA. These record-low benchmarks range from single digits and 10 degrees below zero in some southeastern states and Delaware to minus 60 and minus 70 degrees in parts of the northern Plains and Rocky Mountains.

Even Florida experienced subfreezing temperatures, with Tallahassee plunging to minus 2 degrees during the most brutal U.S. cold outbreak on record in February 1899. Montana is the coldest in continental U.S. history, dropping to minus 70 degrees at Rogers Pass on Jan. 20. 1954.

(​MORE: The most extreme cold outbreaks in the USA)

The coldest temperature on record in each state.

(Source: NOAA)

Alaska holds the all-time US record. On January 23, 1971, the mercury fell to 80 degrees below zero in Prospect Creek north of Fairbanks.

Hawaii is the only state that does not record temperatures below zero: The coldest temperature recorded in Hawaii was 12 degrees on May 17, 1979 at the Mauna Kea Observatory at an elevation of 13,796 feet.

Some records date from the 19th century, others are more recent: The oldest record was set on January 22, 1885, on Mount Washington, New Hampshire, the highest peak in the Northeast, when the thermometer fell to 50 degrees below zero.

The most recent record on the list was set on January 31, 2019 in Mount Carroll, Illinois, when the temperature reached minus 38 degrees.

Celebrities by Region

-Midwest: An interesting but not unexpected observation is the difference in temperature records between states south of the Great Lakes and those near and northwest of the Great Lakes. Illinois, Indiana and Ohio all have records in the 30 degrees below zero range, while Michigan, Wisconsin and Iowa have records in the minus 45 to minus 55 range.

-Northeast: Maine, New Hampshire and Vermont all recorded 50 degrees below zero as the coldest temperature. New York has the coldest record in the region at 52 degrees below zero and Delaware has the warmest record at minus 17 degrees.

Arctic high pressure is always involved in the most extreme cold outbreaks. These strong high-pressure systems advance into the United States one or more times each winter, bringing with them arctic air whose region of origin lies somewhere between Russia’s Siberia and Alaska or northern and western Canada. The combination of cold air and light winds under clear skies near the high pressure center (blue H below) allows heat to escape efficiently from near the Earth’s surface at night. This causes temperatures to drop and thermometers to sometimes drop below zero.

-South: The records are colder than one would expect in this region. South Carolina, Georgia, Mississippi and Louisiana all fell to freezing, while in Tennessee the mercury dropped as low as minus 32.

-West: Height makes a difference, as does the location inside. Rogers Pass, Montana, which holds the record for the coldest temperature in the Lower 48 at 70 degrees below zero, rises to an elevation of 5,610 feet above sea level and sits on the Continental Divide. In Arizona, the record of minus 40 degrees was set at Hawley Lake at an elevation of 8,200 feet.

Chris Dolce has been a senior meteorologist at Weather.com for over 10 years, having started his career at The Weather Channel in the early 2000s.

Linda Lam is senior meteorologist at Weather.com. Growing up in Massachusetts, she developed a fascination with winter storms and hurricanes, which led her to pursue a career in meteorology.

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