Record Start to 2012

 The first 10 days of 2012 have been warmer than anytime in recorded history across portions of the Northern Plains. This was mainly due to the lack of snow cover leading to unseasonably warm high temperatures.  The average high temperature for the first 10 days in January (January 1-January 10) was warmer than previously recorded, in some instances by 6 degrees!

Average Maximum Temperatures (January 1-10)

Huron Year
1. 48.0 2012
2. 42.0 1933
3. 41.1 1927
4. 40.8 1939
5. 40.8 (tie) 1990

Mitchell Year
1. 48.9 2012
2. 46.3 1933
3. 46.3 1935
4. 45.0 1939
5. 43.9 1927

Sioux City Year
1. 49.0 2012
2. 48.1 1939
3. 47.4 1933
4. 45.3 1990
5. 42.9 1935

Sioux Falls Year
1. 45.5 2012
2. 40.9 1990
3. 40.7 1939
4. 40.6 1933
5. 38.7 1935

 The average temperature for the same period was also noteworthy, especially along and west of the James River Valley. Because of the extreme diurnal swings (difference between the high and low temperatures), the average temperature was not as warm as it has been in the past in Sioux City and Sioux Falls.

Average Temperature (January 1-10)

Huron Year
1. 33.5 2012
2. 32.2 1927
3. 31.6 2003
4. 31.2 1933
5. 30.7 1939

Mitchell Year
1. 35.4 2012
2. 35.3 1933
3. 34.2 1927
4. 33.3 2003
5. 32.8 1939

Sioux City Year
1. 38.2 1939
2. 36.9 1933
3. 34.1 2012
4. 33.9 1927
5. 32.9 1921

Sioux Falls Year
1. 32.9 1939
2. 32.6 2012
3. 31.7 1933
4. 31.6 1927
5. 31.0 2007



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