National Weather Service United States Department of Commerce

Snow Will Persist in the Northeast and Great Lake States

Heavy Lake Effect snow will continue to the lee of the Great Lakes for the next couple of days. Snow will also return to the Northeast by Tuesday as another front moves in. Bitter cold wind chills can be expected in the Upper Mississippi Valley. Freezing temperatures will even impact central Florida. Meanwhile, elevated fire weather conditions will persist in southern California. 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.