National Weather Service United States Department of Commerce

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Mother's Day in Sioux Falls

Average High Temperature (period of record):  68 Degrees

Average Low Temperature (period of record):  44 Degrees

Average Temperature (period of record):  56 Degrees

Average Precipitation (period of record):  0.14"

Percentage of Days with Precipitation (period of record):  56%

Percentage of Days with Snowfall (period of record):  0%

Most Precipitation Recorded: 1.96" on May 12, 1935

Most Snowfall Recorded:  none!

Record High Temperature:  90 on May 11, 1958 and May 10, 1987

Record Low Temperature: 20 on May 12, 1946

Coldest High Temperature: 43 on May 12, 1996

Warmest Overnight Low: 64 on May 13, 2007

 

Year

Date

Max

Min

Precip

Snowfall

SOG*

1914
5/10
72
45
0
0
M
1915
5/9
70
35
0
0
M
1916
5/14
52
44
1.26
0
M
1917
5/13
72
35
0
0
M
1918
5/12
52
40
0
0
M
1919
5/11
66
52
T
0
M
1920
5/9
79
59
0.06
0
M
1921
5/8
70
55
0.14
0
M
1922
5/14
65
44
T
0
M
1923
5/13
60
40
T
0
M
1924
5/11
73
39
0
0
M
1925
5/10
64
35
0
0
M
1926
5/9
73
58
T
0
M
1927
5/8
70
52
1.17
0
M
1928
5/13
68
42
0
0
M
1929
5/12
65
45
0
0
M
1930
5/11
70
51
0.35
0
M
1931
5/10
45
42
0.05
0
M
1932
5/8
60
45
0.14
0
0
1933
5/14
73
45
T
0
0
1934
5/13
64
45
0
0
0
1935
5/12
65
47
1.96
0
0
1936
5/10
74
53
0.57
0
0
1937
5/9
70
38
0
0
0
1938
5/8
58
38
0
0
0
1939
5/14
75
53
0
0
0
1940
5/12
89
59
T
0
0
1941
5/11
73
41
0.02
0
0
1942
5/10
60
46
1.39
0
0
1943
5/9
65
42
0
0
0
1944
5/14
85
58
0
0
0
1945
5/13
56
36
0.17
0
0
1946
5/12
63
20
0
0
0
1947
5/11
74
54
0
0
0
1948
5/9
49
43
0.37
0
0
1949
5/8
65
51
T
0
0
1950
5/14
72
48
0
0
0
1951
5/13
73
54
0.22
0
0
1952
5/11
62
35
0
0
0
1953
5/10
65
47
1.18
T
0
1954
5/9
62
29
0
0
0
1955
5/8
67
30
T
0
0
1956
5/13
61
44
0.69
0
0
1957
5/12
60
51
0.63
0
0
1958
5/11
90
51
0
0
0
1959
5/10
63
42
T
0
0
1960
5/8
64
31
0
0
0
1961
5/14
61
48
0.39
0
0
1962
5/13
88
61
0.16
0
0
1963
5/12
58
48
0.66
0
0
1964
5/10
78
44
0
0
0
1965
5/9
58
40
0
0
0
1966
5/8
53
36
T
0
0
1967
5/14
62
37
T
0
0
1968
5/12
72
30
0
0
0
1969
5/11
61
33
0.02
0
0
1970
5/10
73
37
0
0
0
1971
5/9
73
43
T
0
0
1972
5/14
64
43
T
0
0
1973
5/13
63
35
T
0
0
1974
5/12
60
40
0
0
0
1975
5/11
72
49
0.11
0
0
1976
5/9
78
47
0
0
0
1977
5/8
79
49
0
0
0
1978
5/14
71
38
0
0
0
1979
5/13
68
40
0.01
0
0
1980
5/11
61
36
0
0
0
1981
5/10
61
25
0
0
0
1982
5/9
79
56
0.01
0
0
1983
5/8
64
32
0
0
0
1984
5/13
70
46
0
0
0
1985
5/12
70
46
0.03
0
0
1986
5/11
78
49
0
0
0
1987
5/10
90
58
T
0
0
1988
5/8
65
44
T
0
0
1989
5/14
78
46
0
0
0
1990
5/13
62
37
0.38
0
0
1991
5/12
86
62
0.23
T
0
1992
5/10
79
62
0.04
0
0
1993
5/9
62
52
0.01
0
0
1994
5/8
71
43
0
0
0
1995
5/14
63
44
0
0
0
1996
5/12
43
38
0.05
0
0
1997
5/11
58
38
T
0
0
1998
5/10
74
49
0.08
0
0
1999
5/9
72
34
0
0
0
2000
5/14
65
36
0
0
0
2001
5/13
81
50
0
0
0
2002
5/12
54
42
T
0
0
2003
5/11
58
40
0.07
0
0
2004
5/9
89
61
0.01
0
0
2005
5/8
78
57
0.02
0
0
2006
5/14
65
47
0.07
0
0
2007 5/13 88 64 0 0 0
2008 5/11 59 34 0 0 0
2009 5/10 60 35 0 0 0
2010 5/9 56 28 T 0 0
2011 5/8 79 54 0.70 0 0
2012 5/13 74 37 0 0 0
2013 5/12 63 26 0 0 0
2014 5/11 62 48 0.75 0 0
2015 5/10 71 42 0.88 0 0
2016 5/8 72 45 T 0 0
2017 5/14 85 59 0 0 0
2018 5/13 66 49 0.03 0 0
2019 5/12 57 45 0.01 0 0
2020 5/10 50 34 0 0 0
2021 5/9 61 41 T 0 0
2022 5/8          


*SOG=Snow On Ground