Record Cold Meteorological Winter

December 1st, 2013 – February 28th, 2014 will now be remembered as the coldest meteorological winter on record across much of Upper Michigan. Here is a summary of records broken during meteorological winter:

  • Ironwood, at 5.1 degrees, saw its coldest winter over 113 years of data, beating '78-'79 by 0.8 degrees.
  • Munising had the second coldest winter over 102 years of data.
  • At the NWS office, the average temperature was 7.5F, solidly beating the old record of 8.5F set in 1963.
  • Manistique experienced its coldest winter over 86 years of data.

Other records at NWS Marquette:

  • Lowest average February temperature of 5.6 degrees, breaking the previous February monthly record of 5.7 degrees set in 1963. The coldest month ever at this location was in January 1994, when the mean monthly temperature was 2.8 degrees.
  • 75 consecutive days below freezing, breaking the previous record of 72 days set in the winter of 1978-79
  • 3rd most sub-zero highs (5)
  • Latest sub-zero maximum temperature (-1F) on 2/27, surpassing the previous record date of 2/22 set in 1965
  • Most days below zero (49)
  • 20 days at or below zero in February, tying the previous record set in 1979
  • Coldest low temperature (-28F on 2/28/14) since 3/3/03

 The following two images show the average temperature for all meteorological winters on record at Ironwood and NWS Marquette.


The following image depicts the temperature departure from average for meteorological winter. All of Upper Michigan was at least 8 degrees below average, with some interior west locations at much as 11 degrees below average.


The coldest temperatures at select locations during meteorological winter.

Location Temperature (F) Date


 -25  2/28
Iron Mountain  -26 1/09
Ironwood  -28  1/06
Manistique  -23  2/28
Munising  -21  2/28
NWS Marquette  -28  2/28
Newberry  -35  1/10

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