
National Weather Service high and low temperature map (Fahrenheit) from
January 17,
1982.

National Weather Service 500 millibar height contour map from
January 17,
1982.
'"Cold Sunday"' was a
meteorological event which took place on
January 17,
1982, when unprecedentedly cold air swept down from
Canada and plunged temperatures across much of the
United States far below existing all-time record lows.
The phenomenon was caused by an unusually strong
high pressure system over
Saskatchewan with a core pressure of 31.15 inHg (1055
hPa/
mbar), a level rarely seen outside of permanent
polar areas such as
Siberia and
Antarctica. A recent
snowfall had left the ground without any way to hold on to its heat and temperatures dropped precipitously. This mass of cold air was so strong that the temperature at
Mequon, Wisconsin, dropped to −40 °F (−40 °C). The previous record was −28 °F (−33 °C) and temperatures below −20 °F (−29 °C) had only been felt there six times in the previous 100 years. The lowest temperature recorded that day in the
United States was −52 °F (−47 °C), measured near
Tower, Minnesota.
Below is a partial list of cities which set all-time record low temperatures in the
United States. This is only a small fraction of all locales setting record low temperatures: Hundreds of towns and cities from
North Dakota to
New Jersey to
Mississippi broke records, and the vast majority of the records set on "Cold Sunday" still stand. The cold was not confined to the night, either. In
Princeton, New Jersey, and
Cincinnati, Ohio, the ''daytime high temperatures'' were 2 °F (−17 °C) and −9 °F (−23 °C). The average high temperature in January is 39°F (4°C) in both cities.
While much of central and south
Florida escaped the deep freeze, enough damage was done to
citrus crops in the north-central part of the state during the month of January to write off the
1982 harvest as a disaster.
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Chicago, Illinois: −27 °F (−33 °C)
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Moline, Illinois: −23 °F (−31 °C)
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Peoria, Illinois: −23 °F (−31 °C)
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International Falls, Minnesota: −45 °F (−43 °C)
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Milwaukee, Wisconsin: −26 °F (−32 °C)
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Madison, Wisconsin: −31 °F (−35 °C)
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Washington, DC: −5 °F (−21 °C)
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Jackson, Mississippi: −5 °F (−21 °C)
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Birmingham, Alabama: −2 °F (−19 °C)
External Links
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Arctic Outbreaks of January 1982
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Historical daily weather map January 11, 1982 - January 17, 1982 (Requires Plugin, see
NOAA Central Library U.S. Daily Weather Maps Project)
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Intellicast - January in the Southeast