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***Latest Information on Ongoing River Flooding***

Widespread heavy rainfall has produced considerable flooding across the region. Several rivers will rise into Moderate or even Major flood stage over the upcoming days. Here is the latest information on the ongoing flooding. Read More >

 

October 2009 proved to be a month of cool and wet conditions across the area, slowing and stalling at times the fall harvest, interfering with yard work and end of year construction projects, hampering the fall sports season, and featuring the most cloudy days in Sioux Falls for any month since 2004.  The following tables summarize some of the climatic information for the month.

Sioux City

 

 Rank

Precipitation (inches)

Avg. Temperature (degrees F)

Avg. Max Temp. (degrees F)

1

5.70 (2009)*

 39.3 (1925)

47.6 (1925)

 2

5.30 (1979)

 43.0 (1917)

53.3 (2009) 

3

 4.83 (1982)

44.3 (2009)

54.1 (1917) 

4

 4.77 (1968)

44.5 (2002)

54.6 (2002) 

5

 4.61 (2008)

45.1 (1976)

55.8 (1911,1919) 

 

wettest October on record Snowfall was 1.8", which was 8th greatest for October.  Greatest was 9.8" in 1991.

 

Sioux Falls

 

 Rank

Precipitation (inches)

Avg. Temperature (degrees F)

Avg. Max Temp. (degrees F)

1

6.89 (1911)

 37.8 (1925)

47.1 (1925)

 2

6.28 (1998)

 38.2 (1917)

49.7 (2009) 

3

 5.98 (2007)

40.9 (2002)

50.2 (1917) 

4

 5.73 (1973)

42.4 (2009)

50.3 (2002) 

5

 5.52 (2009)

43.1 (1895)

53.0 (1969) 

 

Snowfall was 3.5", which was 9th greatest for October.  Greatest was 10.0" in 1991.

Huron

 

 Rank

Precipitation (inches)

Avg. Temperature (degrees F)

Avg. Max Temp. (degrees F)

1

6.44 (1946)

 36.8 (1925)

46.5 (1925)

 2

5.12 (1998)

 39.3 (1917)

48.6 (2009) 

3

 4.88 (2008)

39.7 (2002)

49.8 (2002) 

4

 4.66 (1961)

41.3 (2009)

50.9 (1917) 

5

 3.90 (2009)

41.4 (1919)

52.1 (1919) 

 

 Snowfall was 2.6", which was 14th greatest for October.  Greatest was 10.7" in 1995.