National Weather Service United States Department of Commerce

Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >

October 2009 ended up much below normal across a majority of the Northern Plains, including much of South Dakota and west-central Minnesota.  Below are a few interesting temperature facts at Pierre, Aberdeen, and Watertown. Tables listing the top 10 coldest temperatures are provided.  A more complete summary of October 2009 will be provided within the next couple of days.

 
At Pierre: 
  • The average daily temperature of 40.4 was the 2nd coldest on record.
  • The average high temperature of 47.9 was the all time coldest on record.
  • The average low temperature of 32.8 was the 7th coldest on record.
 
At Aberdeen:
  • The average daily temperature of 40.2 was the 4th coldest on record.
  • The average high temperature of 47.5 was the 3rd coldest on record.
 
At Watertown:
  • The average daily temperature of 39.1 was the 4th coldest on record.
  • The average high temperature of 45.5 was the 2nd coldest on record.
 
 
 
 Top Ten Coldest Average October Temperatures in Pierre (1933-2009)
 

 

 
Value
Year(s)
1
39.7
2002
2
40.4
2009
3
42.2
1969
4
44.3
1959
5
44.8
1946
6
45.5
2006, 1972
8
46.2
1987
9
46.3
1976, 1970
  
Top Ten Coldest Average October Temperatures in Aberdeen (1893-2009)
  

 

 
Value
Year(s)
1
35.5
1925
2
37.6
2002
3
39.8
1919
4
40.2
2009
5
40.3
1898
6
41.4
1899
7
41.7
1905, 1959
9
42.0
2006
10
42.6
1969

 

Top Ten Coldest Average October Temperatures in Watertown (1893-2009)

 

 

 
Value
Year(s)
1
34.2
1925
2
35.5
1917
3
37.6
2002
4
39.1
2009
5
41.0
1919
6
41.2
1959
7
41.3
1913
8
41.6
1969
9
42.1
1976
10
42.2
1916