National Weather Service United States Department of Commerce

Fall Weather Pattern Arrives

Rain and much cooler temperatures behind a cold front will bring a feeling of fall to the east coast today. In addition, an active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rains, and very high elevations could receive heavy snow. Wetting rains to the valley floors will spread south Thu and Fri into northern California,where active fires continue. Read More >

Valentine's Day in Sioux Falls

Year

Max

Min

Precip

Snowfall

SOG*

1893
8
2
0.30
3.0
M
1894
12
-11
0
0
M
1895
22
2
T
T
M
1896
45
-4
0
0
M
1897
27
-2
0.40
4.0
M
1898
42
25
0
0
M
1899
36
14
0
0
M
1900
12
-18
T
T
M
1901
30
14
0.10
1.0
M
1902
27
15
0.05
0.5
M
1903
10
-8
T
M
M
1904
11
-7
0
0
M
1905
30
-3
0
0
M
1906
14
-17
0
0
M
1907
40
21
0
0
M
1908
25
11
0
0
M
1909
5
-5
T
T
M
1910
28
4
0
0
M
1911
47
30
0
M
M
1912
36
17
0
M
M
1913
55
20
0
0
M
1914
21
-9
T
T
M
1915
17
15
0.29
M
M
1916
33
-12
0
0
M
1917
34
12
T
T
M
1918
28
26
T
0
M
1919
30
22
0.07
0.8
M
1920
5
-12
0
0
M
1921
52
28
0
0
M
1922
15
-12
0
0
M
1923
5
-14
0
0
M
1924
45
32
0
0
M
1925
31
18
T
0
M
1926
32
8
0.02
0.5
M
1927
29
16
T
T
M
1928
32
21
0.08
1.0
M
1929
32
5
0.02
0.5
M
1930
16
5
0
0
M
1931
44
11
0
0
M
1932
17
5
0.14
1.5
M
1933
14
-18
0
0
M
1934
54
30
0
0
M
1935
37
33
0.14
1.0
M
1936
-1
-28
0.03
0.5
M
1937
31
8
T
T
M
1938
15
13
0
0
M
1939
10
-17
0
0
M
1940
30
20
0
0
M
1941
30
6
0
0
1
1942
42
20
0
0
T
1943
13
-8
T
M
T
1944
26
14
0
0
M
1945
49
28
0
0
M
1946
20
-2
T
T
2
1947
39
26
T
0
1
1948
22
2
T
T
5
1949
20
-3
0.02
0.4
4
1950
28
15
0.05
0.6
3
1951
27
-1
0
0
T
1952
36
28
T
0.1
T
1953
32
8
T
T
1
1954
66
27
0
0
0
1955
38
4
0
0
4
1956
12
-5
T
T
4
1957
37
14
0
0
0
1958
18
-4
0.08
1.2
2
1959
27
2
T
T
6
1960
29
12
0
0
3
1961
39
18
0
0
1
1962
42
28
0
0
0
1963
14
-4
0
0
2
1964
39
15
0.01
0.1
T
1965
26
10
0.05
1.5
14
1966
30
10
0
0
T
1967
43
5
T
T
T
1968
34
3
T
T
T
1969
23
16
0.78
9.8
18
1970
17
-6
T
T
5
1971
37
20
0
0
4
1972
36
14
T
T
9
1973
9
4
0.02
0.4
6
1974
23
18
T
T
T
1975
20
12
T
T
5
1976
40
26
0.1
0
1
1977
28
5
0
0
1
1978
15
1
T
T
8
1979
27
22
T
T
12
1980
22
5
T
0.1
3
1981
45
18
0
0
T
1982
39
16
0
0
8
1983
37
25
0.01
0
6
1984
42
25
0
0
1
1985
24
6
0
0
1
1986
14
-5
0
0
4
1987
37
17
T
T
T
1988
30
5
0.01
0.2
16
1989
30
2
T
T
1
1990
18
5
T
T
T
1991
18
1
T
T
T
1992
32
27
0.23
T
2
1993
20
0
T
T
5
1994
38
15
0
0
10
1995
27
8
0.01
0.1
1
1996
36
24
0.05
0.5
0
1997
24
-3
0
0
15
1998
36
24
0
0
0
1999
57
21
0
0
0
2000
35
5
T
0.1
T
2001
10
-2
0.02
0.9
9
2002
51
35
T
T
0
2003
31
18
0.63
5.7
0
2004
15
-6
0
0
14
2005
51
31
0
0
0
2006
41
23
0
0
0
2007 6 -15 0 0 7
2008 26 -3 T T 9
2009 32 9 0 0 0
2010 18 7 0.07 1.5 19
2011 41 28 0 0 7
2012 44 14 0 0 T
2013 35 12 T T 1
2014 11 -7 0.15 2.2 5
2015 28 2 0.01 0.1 T
2016 25 13 0.02 0.5 5
2017          


*SOG=Snow On Ground