National Weather Service United States Department of Commerce

Threat For Heavy Rainfall And Flash Flooding Continues From The Mid South To The Mid Atlantic; Critical Fire Weather Over The Western U.S.

A slow moving low pressure system will bring a continued threat for heavy rainfall and flooding from portions of the Mid South to the Ohio Valley and Mid Atlantic through midweek. Some areas could see locally significant flooding. Out west,very dry humidity combined with gusty winds will lead to a continued threat for critical fire weather and dry thunderstorms. Read More >

Norman, OK

Weather Forecast Office

Monthly/Annual statistics for Tornadoes in Oklahoma (1950-Present)

Weather.gov > Norman, OK > Monthly/Annual statistics for Tornadoes in Oklahoma (1950-Present)
Year Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec. Ann.
1950 0 1 1 5 12 1 0 0 2 1 0 0 23
1951 0 2 0 11 11 11 4 2 1 1 0 0 43
1952 0 0 0 7 5 5 4 1 0 0 0 0 22
1953 0 4 7 9 8 13 4 2 0 0 5 2 54
1954 0 0 7 13 19 4 4 2 3 1 0 0 53
1955 1 1 0 15 32 22 4 2 0 0 0 0 77
1956 0 2 1 20 6 9 7 2 0 1 1 0 49
1957 4 0 0 40 45 5 4 3 5 1 0 0 107
1958 0 2 0 4 4 8 6 2 4 0 12 0 42
1959 0 2 16 3 35 1 3 5 2 2 1 0 70
1960 1 3 5 19 61 2 3 2 1 0 1 0 98
1961 0 4 10 14 42 7 3 0 1 1 0 0 82
1962 0 0 0 4 33 21 6 3 0 0 0 0 67
1963 0 0 3 1 11 4 4 1 2 1 3 0 30
1964 0 0 0 17 22 3 4 4 1 0 2 0 53
1965 0 0 3 21 32 8 0 5 5 0 0 0 74
1966 0 1 0 8 11 13 1 0 2 0 0 0 36
1967 4 0 0 12 4 23 4 0 2 0 0 0 49
1968 0 0 0 16 26 9 0 1 0 0 0 3 55
1969 0 0 0 10 5 13 1 0 1 1 0 0 31
1970 0 0 0 8 5 17 2 1 9 8 0 0 50
1971 0 2 2 8 13 8 1 0 0 1 0 4 39
1972 0 0 0 11 5 6 3 1 0 2 0 2 30
1973 1 0 7 9 19 24 1 1 3 3 8 0 76
1974 0 1 2 3 9 24 0 3 0 1 2 0 45
1975 1 6 1 1 7 9 1 0 0 0 4 4 34
1976 0 3 6 7 7 3 2 0 0 0 0 0 28
1977 0 1 11 4 31 3 2 2 0 0 0 0 54
1978 0 0 0 14 5 1 0 0 1 0 0 0 21
1979 0 0 5 17 7 3 2 13 1 2 1 0 51
1980 0 0 3 7 9 1 0 2 2 1 0 0 25
1981 0 0 1 11 44 7 5 2 2 3 1 0 76
1982 0 0 11 11 56 11 1 3 2 0 2 4 101
1983 0 0 4 12 40 23 2 1 0 2 8 0 92
1984 0 0 6 23 9 3 0 0 2 6 1 0 50
1985 0 2 5 10 6 5 1 0 3 0 4 0 36
1986 0 0 2 4 25 1 0 2 7 6 0 0 47
1987 0 3 9 0 5 0 1 0 1 0 4 0 23
1988 0 0 5 0 2 3 0 0 2 0 5 0 17
1989 0 0 2 1 7 6 0 1 1 2 0 0 20
1990 0 0 10 3 10 6 1 0 0 0 0 0 30
1991 0 0 17 24 20 4 1 0 0 7 0 0 73
1992 0 0 2 9 25 9 2 0 16 1 0 0 64
1993 0 0 6 17 20 13 0 0 5 2 1 0 64
1994 0 0 1 15 11 2 6 2 0 3 0 0 40
1995 0 0 2 22 17 28 6 0 0 4 0 0 79
1996 0 0 1 18 9 6 0 6 7 0 1 0 48
1997 0 1 1 1 41 5 1 1 2 2 0 0 55
1998 0 0 1 1 22 22 2 1 3 27 4 0 83
1999 0 1 6 19 90 14 0 1 2 4 5 3 145
2000 0 2 15 6 11 3 0 0 0 7 0 0 44
2001 0 0 0 10 25 1 0 0 6 19 0 0 61
2002 0 0 0 7 7 2 0 0 2 0 0 0 18
2003 0 0 4 15 59 0 0 0 0 0 0 0 78
2004 0 0 12 13 26 4 0 0 0 1 6 0 62
2005 0 0 8 7 0 10 0 0 1 1 0 0 27
2006 0 0 7 8 4 5 0 0 3 0 0 0 27
2007 0 0 5 3 29 5 1 5 0 1 0 0 49
2008 4 0 13 9 42 5 0 0 2 0 1 1 77
2009 0 6 1 17 4 3 0 1 0 2 0 0 34
2010 0 0 2 1 91 4 1 0 3 0 0 1 103
2011 0 1 0 50 46 7 0 1 3 0 11 0 119
2012 0 0 5 54 3 0 0 0 0 1 0 0 63
2013 2 0 2 12 63 0 2 1 0 0 0 0 82
2014 0 0 0 4 4 5 0 0 1 1 0 1 16
2015 0 0 7 5 83 1 3 0 0 0 9 3 111
2016 0 0 5 27 24 0 1 0 0 0 0 0 57
2017 0 0 3 10 57 2 0 4 0 9 0 0 85
Total 18 51 271 797 1578 506 117 92 124 139 103 28 3824
Avg. 0.3 0.8 4.0 11.7 23.2 7.4 1.7 1.4 1.8 2.0 1.5 0.4 56.2
Most 4 6 17 54 91 28 7 13 16 27 12 4 145
When 1957
1967
2008		 1975
2009		 1991 2012 2010 1995 1956 1979 1992 1998 1958 1982 1975 1971 1999
Least 0 0 0 0 0 0 0 0 0 0 0 0 16
When Many Years Many Years Many Years 1987
1988
2018		 2005 1987
2003
2012
2013
2016		 Many Years Many Years Many Years Many Years Many Years Many Years 2014
Preliminary Numbers for 2018
2018 0 0 0 0 18 - - - - - - - 18
 
Highest Annual Total of Tornadoes by Year Lowest Annual Total of Tornadoes by Year
Rank Year Total Rank Year Total Rank Year Total Rank Year Total
1 1999 145 6 1982 101 1 2014 16 6 1952 22
2 2011 119 7 1960 98 2 1988 17 7 (tie) 1987 23
3 2015 111 8 1983 92 3 2002 18   1950 23
4 1957 107 9 2017 85 4 1989 20 9 1980 25
5 2010 103 10 1998 83 5 1978 21 10 (tie) 2005/2006 27
 
Highest Total of Tornadoes by Month or Season and Year
Jan. Feb. Mar. Apr.
Rank Year Total Rank Year Total Rank Year Total Rank Year Total
1 (tie) 2008 4 1 (tie) 2009 6 1 1991 17 1 2012 54
  1967 4   1975 6 2 1959 16 2 2011 50
  1957 4 3 (tie) 1961 4 3 2000 15 3 1957 40
4 2013 2   1953 4 4 2008 13 4 2016 27
5 (tie) Many Years 1 5 (tie) Many Years 3 5 2004 12 5 1991 24
May. Jun. Jul. Aug.
Rank Year Total Rank Year Total Rank Year Total Rank Year Total
1 2010 91 1 1995 28 1 1956 7 1 1979 13
2 1999 90 2 (tie) 1974 24 2 (tie) 1995 6 2 1996 6
3 2015 83   1973 24   1994 6 3 (tie) 2007 5
4 2013 63 4 (tie) 1983 23   1962 6   1965 5
5 1960 61   1967 23   1958 6   1959 5
Sep. Oct. Nov. Dec.
Rank Year Total Rank Year Total Rank Year Total Rank Year Total
1 1992 16 1 1998 27 1 1958 12 1 (tie) 1982 4
2 1970 9 2 2001 19 2 2011 11   1975 4
3 (tie) 1996 7 3 2017 9 3 2015 9   1971 4
  1986 7 4 1970 8 4 (tie) 1983 8 4 (tie) 2015 3
5 2001 6 5 (tie) 1991/2000 7   1973 8   1999/1968 3
Winter (Dec.-Jan.-Feb.) Spring (Mar.-Apr.-May) Summer (Jun.-Jul.-Aug.) Autumn (Sep.-Oct.-Nov.)
Rank Year Total Rank Year Total Rank Year Total Rank Year Total
1 (tie) 2008-09 7 1 1999 115 1 1995 34 1 1998 34
  1975-76 7 2 2011 96 2 1962 30 2 2001 25
  1974-75 7 3 2015 95 3 1955 28 3 (tie) 1992 17
4 1999-2000 5 4 2010 94 4 (tie) 1974 27   1970 17
5 (tie) Many Years 4 5 (tie) 1957/1960 85   1967 27 5 1958 16
 
 
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