Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. 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.
|
|
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
|
|
|
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
|
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