1936 North American cold wave explained

The 1936 North American cold wave ranks among the most intense cold waves in the recorded history of North America. The Midwestern United States and the Canadian Prairies were hit the hardest. Only the Southwestern United States and California largely escaped its effects. The cold wave was related to a highly negative North Atlantic Oscillation event during that winter driving cold Arctic air into most of North America.[1]

February 1936 was the coldest February on record in the contiguous U.S., narrowly eclipsing February 1899.[2] It also was the coldest month ever in Nebraska, North Dakota, and South Dakota.

The meteorological winter (December through February) of 1935/36 was the coldest on record for Iowa,[3] Minnesota,[4] North Dakota,[5] and South Dakota.[6]

This winter was much colder than the immediately preceding winters. 1930 through 1934 had each seen exceptionally mild winters in substantial parts of the United States: 1930/31 in the northern Great Plains; 1931/32 in the mid- and south-Atlantic states, the eastern north central states, and the eastern south central states; 1932/33 in New England, and 1933/34 in the Mountain and Pacific states.[7] In the northern plains, the Februaries of 1925, 1926, 1927, 1930, 1931, and 1935 are among the 25 warmest Februaries between 1895 and 2017, although 1929 had the third-coldest February of all-time.[8]

Despite a mild March over most areas east of the Rocky Mountains, the six months from October 1935 to March 1936 were the fifth-coldest on record over the contiguous U.S.[9]

November and December 1935

The 1935/36 cold wave began in the plains states in November, when temperatures were well below normal in many areas west of the Mississippi River. November 1935 was one of the coldest Novembers on record for Idaho (fourth coldest),[10] Oregon (sixth coldest),[11] Washington (seventh coldest),[12] and North Dakota (seventh coldest).[13]

During December, cold weather spread to the eastern half of the U.S., where most places were much below average. Florida, Georgia, and South Carolina had their second-coldest Decembers of all-time, with Florida averaging 50.8°F,[14] Georgia 39.3°F,[15] and South Carolina 37.5°F.[16] British Columbia[17] and Montana[18] were however significantly warmer than average.

January 1936

The month began with a mild spell in the eastern states, but by the nineteenth a large blizzard-like storm covered the eastern half of the country, and would cause two deaths in New Jersey[19] and two in the Catskill Mountains.[20] The storm produced heavy snow and blocked most roads in the Appalachian Mountains.[21] Snow was a contributing factor to several highway accidents that killed up to 100 people.[21]

The cold continued during the following weeks. The sea froze partially as far south as Chesapeake Bay.[22] From January 25 to 28, the Mid-Atlantic had its coldest January temperatures in eighteen years, with Washington, D. C. averaging 14°F[23] High winds in some locations caused wind chills below -85°F. In Ohio and the Centralia district of Illinois,[24] the cold destroyed the peach crop, whilst defective heaters caused numerous dangerous fires in Minnesota.[23]

North Dakota had its fifth-coldest January of all-time with an average temperature of -6.9°F.[25]

February 1936

February was by far the coldest month of this severe winter. Nebraska, North Dakota, and South Dakota experienced their coldest month on record. Two states recorded their coldest temperatures on record: McIntosh, South Dakota sank to -58°F, and Parshall, North Dakota hit -60°F.[26] [27] At Devil's Lake, North Dakota, the average temperature for five weeks ending in February was -21°F.[28]

Skis had to be used in rescue operations as a succession of snowstorms hit the Pacific Northwest states and much of the nation east of the Continental Divide.[29] By the middle of the month, all schools in the Midwest, Great Plains, and Pacific Northwest were closed by deep snowdrifts. Health care was affected by a shortage of serum. Many remote South Dakota towns did not have outside contact for several weeks,[30] At the peak of the cold wave, only two days of supplies were in inventory at many stores in the plains states. As far south as Richmond, Virginia, rivers were completely ice-bound.[24] Subsequent thaws accompanied by heavy rain over the southern states led to flooding.[29]

In Canada away from the Atlantic Ocean, temperatures averaged as much as below normal.[31] At the Saskatoon airport, the temperature did not rise above 0°F from February 2 through February 20.[32] A temperature of -63°F was reached in Sceptre, Saskatchewan.[33]

March 1936

In the final week of February, a thaw finally came to the nation. Temperatures rose above freezing for the first time in many weeks. Fargo, North Dakota reached 32°F on March 1 for the first time since December 14, 1935. The warming led, however, to avalanches in the Pacific Northwest, where three people were killed on Snoqualmie Pass on February 24.[34]

Above average to near average temperatures were recorded throughout the U.S. in March, except for the Pacific Northwest. The melting of the heavy winter snowfalls and thawing of the ground, along with the wettest March on record in the northeastern states[35] led to record floods in most of the region's rivers, especially on smaller tributary streams.[36]

See also

External links

Notes and References

  1. See Ballesteros-Cánovas . Juan Antonio . Stoffel . Markus . Benito . Gerardo . Rohrer . Mario . Barriopedro . David . García-Herrera . Ricardo . Beniston . Martin . Brönnimann . Stefan . On the extraordinary winter flood episode over the North Atlantic Basin in 1936 . Annals of the New York Academy of Sciences . July 2, 2018.
  2. Web site: Contiguous U.S., Average Temperature, February . National Centers for Environmental Information . January 27, 2018.
  3. Web site: Iowa Average Temperature Rankings, February 1936 . National Centers for Environmental Information . May 2, 2021 .
  4. Web site: Minnesota Average Temperature Rankings, February 1936 . National Centers for Environmental Information . May 2, 2021 .
  5. Web site: North Dakota Average Temperature Rankings, February 1936 . National Centers for Environmental Information . May 2, 2021 .
  6. Web site: South Dakota Average Temperature Rankings, February 1936 . https://web.archive.org/web/20210409024253/https://www.ncdc.noaa.gov/cag/statewide/rankings/39/tavg/193602 . dead . April 9, 2021 . National Centers for Environmental Information . January 27, 2018 .
  7. The 1976–77 Winter in the Contiguous United States in Comparison with Past Records . Henry F. Diaz . Robert G. Quayle . . 106 . 10 . October 1978 . 1402–6 . 10.1175/1520-0493(1978)106<1393:TWITCU>2.0.CO;2 . 1978MWRv..106.1393D . free .
  8. Web site: February, Average temperature, Central NWS Region . National Centers for Environmental Information . January 26, 2018.
  9. Web site: October–March, Average Temperature, Contiguous U.S., All 48 States . National Centers for Environmental Information . January 26, 2018.
  10. Web site: Climatological Rankings, November 1935, Average Temperature, Idaho . National Centers for Environmental Information . May 2, 2021 .
  11. Web site: Climatological Rankings, November 1935, Average Temperature, Oregon . National Centers for Environmental Information . May 2, 2021 .
  12. Web site: Climatological Rankings, November 1935, Average Temperature, Washington . National Centers for Environmental Information . May 2, 2021 .
  13. Web site: Climatological Rankings, November 1935, Average Temperature, North Dakota . National Centers for Environmental Information . May 2, 2021 .
  14. Web site: Climatological Rankings, December 1935, Average Temperature, Florida . National Centers for Environmental Information . May 2, 2021 .
  15. Web site: Climatological Rankings, December 1935, Average Temperature, Georgia . National Centers for Environmental Information . May 2, 2021 .
  16. Web site: Climatological Rankings, December 1935, Average Temperature, South Carolina . National Centers for Environmental Information . May 2, 2021 .
  17. News: January 2, 1936. 1. The Province. December Set New Weather Mark for City: Was Warmest in History — Rain More Plentiful during 1935.
  18. Web site: Climatological Rankings, December 1935, Average Temperature, Montana . National Centers for Environmental Information . May 2, 2021.
  19. News: Blizzard-like Storm Causes Two Deaths . . January 20, 1936 . 1, 16 .
  20. News: Storm wreaks Havoc in State. Poughkeespie Eagle-News. January 20, 1936. 1, 2.
  21. News: Frigid Grip of Winter Holds Most of Nation . John P. Gallagher . . January 19, 1936 . 1, 5 .
  22. News: The Miami Herald. Ocean Ships Marooned by 10-Inch Ice: Chesapeake Bay Frozen from Shore to Shore; Baltimore Cut Off — Below Zero for North Carolina: Midwest Miners Give Up Holiday and Dig Coal To Avert Famine. February 2, 1936. Associated Press. 1.
  23. News: 14˚ Average for 4 Days is Unequalled since 1917–18 Winter: 15 Deaths Brings U.S. Total to 250 – Devils' Lake with −27˚ Has Coldest Temperature . . January 28, 1936 . 1 .
  24. News: Potomac Ice-Bound for First Time in 18 Years; Warmer Forecast . . February 1, 1936 . 1 .
  25. Web site: Climatological Rankings, January 1936, Average Temperature, North Dakota . National Centers for Environmental Information . May 2, 2021 .
  26. Web site: State Climate Extremes Committee: Records, Minimum Temperature, All States . National Centers for Environmental Information . January 26, 2018.
  27. News: 1936: Coldest winter ever . . . February 15, 2016 . January 27, 2018.
  28. News: Weather Cycle Changing? Present Hard Winter May Be a Foretaste of a Series of Colder and Wetter Years . J. B. Kincer . . February 21, 1936 . E10 . January 27, 2018.
  29. News: Weather Fair as Cold Eases Grip on Capital . . February 6, 1936 . 1, 3 .
  30. News: Expeditions Rush Aid to Snowbound: Many Midwest Towns Cut Off – Meningitis Adds to Danger; Planes to Fly Supplies to Stricken Sections . . February 14, 1936 . 1, 3 .
  31. News: February’s Cold Breaks Records: Average Temperature Was 16.5 Degrees Below Zero. March 2, 1936. Edmonton Journal. 9.
  32. Web site: Daily Data Report for February 1936: Saskatoon Diefenbaker Int'l A Saskatchewan . Government of Canada . January 27, 2018. 2011-10-31 .
  33. News: Record Cold Continues in West: 63 Below at Sceptre, Sask . . February 17, 1936 . 1 .
  34. News: At Least 3 Perish in Avalanche: Workers, Menaced by 'Slides, Continue to Dig through Snow – Cars Uncovered: All Vehicles Unoccupied: snow-slip Occurs at Snoqualmie Pass . . February 24, 1936 . 2 .
  35. Web site: . Northeast Precipitation, March .
  36. News: Hard Winter Brings New Burst of Floods: Rush of Water Over Frozen Ground Causes in the East a Costly Disaster Yet Unlike Overflows of Spring . Talman . C. F. . The New York Times . March 15, 1936 . E12 . July 31, 2019 .

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