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...Past Autumn Snowstorms in Sioux Falls...

Historically, significant snowfall in the Sioux Falls area has occurred
fairly frequently during November, and occasionally during October.

The greatest autumn snowfall on record occurred recently on November 20,
2015. While there was little wind during the snowfall, areas across the 
southern Sioux Falls metro area and toward Harrisburg and Tea received 
from 12 to 18 inches snowfall. Officially, the Sioux Falls airport 
received 7.2 inches, and the snow amounts dropped off to the north
at a rate of around an inch every 2 to 3 miles.

Another notable event was the Thanksgiving weekend snowstorm of November
27/28 in 1983, in which up to 15 inches of snowfall along with thunder
and lightning occurred in the Sioux Falls area. Again, the airport 
measured a lower amount (11.4 inches) than most of the city. A similar
storm to this was the blizzard of November 10, 1998, also initiating with
thunder and lightning in the early morning hours, and officially dumping
12.6 inches of snow.

Who could forget the famous Halloween snowstorm of Oct. 31 - Nov. 1, 1991,
in which 12.1 inches of snow fell, followed by blizzard conditions?  An
honorable mention would go to the late November 2001 storm, when a storm
total of 12.6 inches of heavy, wet snow fell on the 26th-27th.

The Halloween snowstorm of 1991 took the prize for the heaviest snowfall
so early in the season.  The earliest significant snowfall since records
began in 1893 was 5.1 inches on October 8-9, 1970.

It should be mentioned that one of the worst winter storms in October/
November history was not a snowstorm, but an ice storm. On November
15th/16th 1996, between two and three inches of freezing rain, sleet,
and some snow occurred in the Sioux Falls area, causing considerable
damage to trees and power lines.
 
The following is a list of significant October/November snowfalls of
the past for the Sioux Falls area.


  Date          Airport Snowfall            Comments
                (inches in 24 hrs.)

Sep. 18, 1929         Trace          earliest snowfall

Sep. 25, 1939           .3           earliest measurable snowfall

Sep. 28, 1985           .9           second earliest measurable snowfall
                                     up to 18 inches of snow reported
                                     in Tripp county in south central
                                     South Dakota
Oct. 1, 1999           2.7

Oct. 8-9, 1970         5.0

Oct. 17-18, 1898       6.1

Oct. 19, 1982          3.3           5.5 inches measured in southern
                                     Sioux Falls, with up to 12 inches
                                     of snowfall in the Newton Hills,
                                     25 miles south of Sioux Falls
Oct. 20, 1905          5.0

Oct. 26, 1918          4.0

Oct. 28, 1925          4.5

Oct. 31-Nov. 1, 1991  11.2           12.1 Inches storm total
                                      HEAVIEST SNOW SO EARLY IN SEASON

Nov. 1, 1928           5.0

Nov. 2, 1992           2.8           4.1 inches total Nov. 1-3

Nov. 3, 1990           4.6

Nov. 5-6, 2013         6.2

Nov. 7, 1924           5.5

Nov. 8, 1985           8.0           2nd heaviest snowfall so early

Nov. 8-9, 1977         5.6           6.1 inches storm total

Nov. 9, 1932           5.0
 
Nov. 9-10, 1946        7.9

Nov. 9-10, 1896        6.0           7.8 inches storm total

Nov. 10, 1998         12.6          13.4 inches storm total

Nov. 11-12, 2000       5.7

Nov. 12, 1959          7.5

Nov. 14-15, 1947       6.4           7.0 inches storm total

Nov. 14-15, 1926       5.0

Nov. 15, 2014          6.5

Nov. 15-16, 2000       5.3

Nov. 18-19, 1948       9.1           11.8 inches storm total

Nov. 19-20, 1975       9.2

Nov. 20, 2015          7.2           12-18 inches Southern Sioux Falls

Nov. 21, 1909          6.0           7.0 inches storm total

Nov. 21-22, 1979      11.8

Nov. 24-25, 1993       7.5

Nov. 26-27, 2001      12.1           12.6 inches storm total

Nov. 27, 1994          9.6

Nov. 27-28, 1983      11.0           15.0 inches in Southern Sioux Falls

Nov. 28-29, 2005       5.9        Ice storm/blizzard west of Sious Falls 
 
Nov. 30, 1954          7.6

Nov. 30, 2005          6.6

Nov. 30-Dec. 1, 2015   9.6

Nov. 30-Dec. 1, 1981   7.0           9.0 inches in Southern Sioux Falls
 

Updated 2/17/2017