HEAVIEST 24 HOUR SNOWSTORMS IN SIOUX FALLS...10 INCHES OR GREATER
     COMPILED BY THE NATIONAL WEATHER SERVICE IN SIOUX FALLS


RANK  SNOWFALL        DATES          STORM TOTAL...DATES

 1      26.0       FEB 17-18 1962        32.2   16-18
 2      18.9       MAR  9-10 1956        SAME
 3      16.6       DEC 21-22 1968        17.7   21-22
 4      16.6       FEB    19 1952        17.7   19-20
 5      15.0       FEB     9 1909        21.0    8-9
 6      14.8       MAR   2-3 1951        SAME
 7      14.0       MAR    16 1917        20.0   16-17
 8      13.0       MAR     3 1920        SAME
 9      12.6       NOV    10 1998        13.4    9-10
10      12.5       DEC 27-28 1982        SAME
11      12.2       MAR 17-18 2005        SAME
12      12.1       DEC 24-25 2009        19.0   23-26
13      12.1       NOV    26 2001        12.6   26-27
14      12.0       DEC    21 1920        16.0   21-22
15      12.0       JAN   3-4 1897        SAME
16      11.8       NOV 21-22 1979        12.9   21-22
17      11.8       JAN   1-2 1960        SAME
18      11.7       MAR    21 1993        13.4   21-22
19      11.6       MAR    19 1970        SAME
20      11.4       MAR 17-18 1957        SAME
21      11.2    OCT 31-NOV 1 1991        12.1 OCT 30-NOV 1
22      11.0       NOV 27-28 1983        SAME (15.0 INCHES SRN S.F.)
23      11.0       MAR   2-3 1977        12.6    2-3
24      11.0       FEB  9-10 1959        SAME
25      10.9       DEC     3 1955        12.8    2-4
26      10.6       FEB   3-4 1997        SAME
27      10.5       APR    28 1994        SAME
28      10.5       MAR   3-4 1984        SAME
29      10.5       FEB     4 1945        SAME
30      10.4       JAN    19 1988        12.1   18-20
31      10.1       FEB  9-10 1965        14.1    9-11
32      10.0       DEC    25 1945        13.5   22-25
33      10.0       APR    10 1929        10.5    9-10


RECORD HEAVIEST 24 HOUR SNOWSTORMS FOR EACH MONTH

MONTH  SNOWFALL       DATES

SEP       .9          28 1985
OCT      8.8          31 1991
NOV     12.6          10 1998
DEC     16.6       21-22 1968
JAN     12.0         3-4 1897
FEB     26.0       17-18 1962
MAR     18.9        9-10 1956
APR     10.5          28 1994
MAY      3.0           5 1944
  
RYRHOLM 1/14/10



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