Record Cold Start to October

 

How Cold has it been this October?

 

An Arctic airmass invaded the Central Plains early on October 10 and combined with periodic reinforcing shots of cold air and persistent cloud cover to create very cool conditions for the following several days.  Although temperatures did not get that cold at night, daytime high temperatures were more common of those experienced in late November and early December.  These conditions followed temperatures during the first ten days of the month that were already somewhat below normal.

Here are some statistics for Topeka and Concordia to put the recent cold air in perspective.  Observations for Topeka began being recorded in 1887 and at Concordia in 1885.

 

Lowest 15-Day Average of Maximum Temperatures from October 1 to October 15

Rank

Topeka

Year

Concordia

Year
1 58.1 2009 55.5 2009
2 63.3 1925 60.2 1925
3 63.4 1959 61.2 1959
4 65.0 1986 62.9 1891
5 65.1 1985 63.5 1986

Lowest 15-Day Average of Average Temperatures from October 1 to October 15

Rank Topeka Year Concordia Year
1 49.4 2009 46.9 2009
2 53.2 1959 52.0 1891
3 53.3 1964 52.4 1925
4 53.3 1977 52.6 1959
5 53.5 1952 52.8

1985

 

Lowest 7-Day Average of Maximum Temperatures from October 1 to October 15

Rank Topeka Ending Date Concordia Ending Date
1 48.6 10/15/2009 46.1 10/14/2009
2 49.3 10/14/2009 46.3 10/15/2009
3 52.7 10/13/2009 50.3 10/13/2009
4 55.3 10/11/2009 52.4 10/10/2000
5 55.9 10/13/1925 52.7 10/12/2009

Lowest 7-Day Average of Average Temperatures from October 1 to October 15

Rank Topeka Ending Date Concordia Ending Date
1 43.3 10/15/2009 40.5 10/14/2009
2 43.9 10/14/2009 40.6 10/15/2009
3 45.0 10/13/2009 42.7 10/13/2009
4 45.4 10/11/2000 43.6 10/10/2000
5 46.0 10/10/2000 44.0 10/12/2009

 

This bout of cold air continues the cool stretch of weather that set in during the middle portions of the summer.  See the table below for the details...

Lowest Average of Average Temperatures from July 1 to October 15


Rank Topeka Year Concordia Year
1 68.5 2009 68.3 2009
2 68.6 1889 68.7 1915
3 68.7 1950 68.8 1967
4 68.9 1967 68.9 1950
5 69.0 1915 69.0 1885

 

More cold air could be in store for the remainder of the month.  The outlooks from the Climate Prediction Center issued on October 16...




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