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Tucson, Arizona
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Yealy 1st 100 degree dates for Tucson AZ
100°+ highs 105°+ highs 110°+ highs
Yearly 1st dates Yearly 1st date plot Monthly & Yearly totals Consecutive days Fastest to... Average Dates 2014 vs 1994
Year-by-year listing of the 1st 100 degree occurrence in Tucson
Average 1st occurrence (1895-2014) is May 26th (plot)
Year Date Year Date Year Date Year Date
2014 May 16 2009 May 7 1999 May 28 1989 April 19
2013 June 1 2008 May 19 1998 June 2 1988 May 11
2012 April 22 2007 May 11 1997 May 29 1987 June 2
2011 May 27 2006 May 21 1996 May 11 1986 May 19
2010 May 28 2005 May 20 1995 May 21 1985 June 6
. . 2004 June 1 1994 May 15 1984 May 9
. . 2003 May 17 1993 May 11 1983 May 23
. . 2002 May 13 1992 April 27 1982 June 10
. . 2001 May 8 1991 May 25 1981 June 5
. . 2000 May 14 1990 May 23 1980 May 20

Year Date Year Date Year Date Year Date
1979 June 12 1969 May 27 1959 June 9 1949 May 24
1978 May 13 1968 May 27 1958 May 19 1948 May 16
1977 May 30 1967 June 17 1957 June 1 1947 May 2
1976 June 6 1966 May 25 1956 May 17 1946 June 3
1975 June 2 1965 May 29 1955 May 29 1945 June 13
1974 May 26 1964 May 24 1954 June 3 1944 May 13
1973 June 6 1963 May 20 1953 June 11 1943 April 30
1972 June 16 1962 June 19 1952 June 6 1942 May 20
1971 June 15 1961 June 10 1951 May 25 1941 May 12
1970 May 17 1960 May 11 1950 June 10 1940 June 2

Year Date Year Date Year Date Year Date
1939 May 29 1929 June 3 1919 June 6 1909 June 2
1938 May 26 1928 May 26 1918 June 2 1908 June 8
1937 May 13 1927 May 13 1917 June 8 1907 May 20
1936 May 24 1926 May 22 1916 June 8 1906 June 8
1935 June 4 1925 May 18 1915 June 8 1905 June 22
1934 May 9 1924 May 17 1914 May 21 1904 June 6
1933 May 29 1923 May 9 1913 May 23 1903 May 13
1932 May 17 1922 May 23 1912 May 25 1902 June 7
1931 June 14 1921 June 7 1911 June 4 1901 June 7
1930 June 5 1920 May 19 1910 April 27 1900 May 9

Year Date . Top 10 earliest occurrences . Top 10 latest occurrences
1899 June 9 1 April 19, 1989 1 June 22, 1905
1898 N/A 2 April 22, 2012 2 June 19, 1962
1897 June 6 3T April 27, 1992 3 June 17, 1967
1896 May 24 April 27, 1910 4 June 16, 1972
1895 May 7 5 April 30, 1943 5 June 15, 1971
    6 May 2, 1947 6 June 14, 1931
. . 7T May 7, 2009 7 June 13, 1945
. . May 7, 1895 8 June 12, 1979
. . 9 May 8, 2001 9 June 11, 1953
. . 10T May 9, 1984 & 1934 10T June 10 in 1982, 1961 & 1950
. . May 9, 1923 & 1900    
 
1st 100 degree occurrence in Tucson by date
Dates # occurrences Year(s)
April 19 1 1989
April 22 1 2012
April 27 2 1992, 1910
April 30 1 1943
May 2 1 1947
May 7 2 2009, 1895
May 8 1 2001
May 9 4 1984, 1934, 1923, 1900
May 11 5 2007, 1996, 1993, 1988, 1960
May 12 1 1941
May 13 6 2002, 1978, 1944, 1937, 1927, 1903
May 14 1 2000
May 15 1 1994
May 16 2 2014, 1948
May 17 5 2003, 1970, 1956, 1932, 1924
May 18 1 1925
May 19 4 2008, 1986, 1958, 1920
May 20 5 2005, 1980, 1963, 1942, 1907
May 21 3 2006, 1995, 1914
May 22 1 1926
May 23 4 1990, 1983, 1922, 1913
May 24 4 1964, 1949, 1936, 1896
May 25 4 1991, 1966, 1951, 1912
May 26 3 1974, 1938, 1928
May 27 2 2011, 1969, 1968
May 28 2 2010, 1999
May 29 5 1997, 1965, 1955, 1939, 1933
May 30 1 1977
June 1 3 2013, 2004, 1957
June 2 6 1998, 1987, 1975, 1940, 1918, 1909
June 3 3 1954, 1946, 1929
June 4 2 1935, 1911
June 5 2 1981, 1930
June 6 7 1985, 1976, 1973, 1952, 1919, 1904, 1897
June 7 3 1921, 1902, 1901
June 8 5 1917, 1916, 1915, 1908, 1906
June 9 2 1959, 1899
June 10 3 1982, 1961, 1950
June 11 1 1953
June 12 1 1979
June 13 1 1945
June 14 1 1931
June 15 1 1971
June 16 1 1972
June 17 1 1967
June 19 1 1962
June 22 1 1905
Average 1st 100 degree occurrence by decade
1900s June 1 Latest occurrence (June 22, 1905)
1910s May 29 .
1920s May 22 .
1930s May 27 .
1940s May 20 .
1950s June 1 .
1960s May 30 .
1970s June 2 .
1980s May 22 Earliest occurrence (April 19, 1989)
1990s May 19 .
2000s May 16 .
2010s May 19 (5 yrs) .
 

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Tucson, AZ 85719

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