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Tucson, Arizona
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Yearly monsoon statistics for Tucson Arizona since 1895.
Monsoon statistics Dewpoint data Monsoon rainfall What is the Monsoon? Tracking the Monsoon
Tucson Phoenix Yuma El Paso Albuquerque
Monsoon statistics for Tucson (1895-2014)
Top 10 Wettest Monsoon Top 10 Driest Monsoon
1) 13.84"/1964 6) 10.20"/2006 1) 1.59"/1924 6) 2.50"/1902
2) 13.08"/1955 7) 9.94"/1984 2) 2.33"/1973 7) 2.58"/1994
3) 11.04"/1921 8) 9.85"/1990 3) 2.40"/1989 8) 2.75"/1913
4) 10.50"/1983 9) 9.43"/1966 4) 2.42"/2004 9) 2.79"/1918
5) 10.21"/1919 10) 8.62"/2011 5) 2.45"/1900 10) 2.81"/2001
YEAR
Month by month rainfall
June (15-30) July August September Total
Normal 0.15" 2.25" 2.39" 1.29" 6.08"
2014 0.00" 1.43" 1.89" 2.76" 6.08"
2013 0.03" 2.60" 0.48" 0.63" 3.74"
2012 0.34" 4.13" 1.17" 0.38" 6.02"
2011 0.03" 1.64" 1.35" 5.60" 8.62"
2010 0.00" 2.71" 2.04" 0.70" 5.45"
2009 0.01" 1.78" 0.33" 0.74" 2.86"
2008 0.16" 3.42" 1.70" 0.24" 5.52"
2007 0.00" 5.22" 0.90" 0.45" 6.57"
2006 0.19" 5.40" 3.01" 1.60" 10.20"
2005 0.01" 0.72" 4.52" 0.05" 5.30"
2004 0.00" 0.86" 0.95" 0.61" 2.42"
2003 0.00" 2.50" 2.04" 2.16" 6.70"
2002 0.00" 2.47" 1.63" 1.69" 5.79"
2001 0.54" 1.09" 0.85" 0.33" 2.81"
2000
1.56" 1.59" 1.70" 0.02" 4.87"
1999
0.16" 4.15" 3.05" 0.97" 8.33"
1998
0.00" 4.06" 1.70" 1.10" 6.86"
1997
0.00" 0.51" 2.32" 1.43" 4.26"
1996
0.00" 1.88" 1.87" 3.68" 7.43"
1995
0.00" 0.04" 3.71" 2.29" 6.04"
1994
0.26" 0.41" 0.45" 1.46" 2.58"
1993
0.02" 0.26" 4.93"

0.46"

5.67"
1992
0.00" 0.93" 4.55" 0.94" 6.42"
1991
0.00" 0.44" 2.17" 1.54" 4.15"
1990
0.07" 5.45" 2.70" 1.63" 9.85"
1989
0.06" 1.42" 0.90" 0.02" 2.40"
1988
0.15" 1.69" 3.64" 0.80" 6.28"
1987
0.00" 0.37" 2.79" 2.30" 5.46"
1986
0.01" 1.82" 3.56" 0.31" 5.70"
1985
0.02" 3.14" 1.97" 1.13" 6.26"
1984
1.02' 2.92" 4.19" 1.81" 9.94"
1983
0.00" 1.98" 4.24" 4.28" 10.50"
1982
0.13" 2.13" 2.51" 2.69" 7.46"
1981
0.16" 6.17" 0.80" 1.10" 8.23"
1980
0.23" 1.78" 1.95" 2.93" 6.89"
1979
0.03" 2.04" 2.60" 0.02" 4.69"
1978
0.22" 0.78" 1.59" 1.66" 4.25"
1977
0.06" 0.76" 0.80" 1.41" 3.03"
1976
0.10" 1.18" 0.23" 1.68" 3.19"
1975
0.00" 2.38" 0.32" 1.26" 3.96"
1974
0.01' 4.44" 1.04" 1.69" 7.18"
1973
0.05" 1.74" 0.54" Trace 2.33"
1972
0.50" 3.49" 2.93" 1.09' 8.01"
1971
0.00" 2.18" 3.29" 1.75" 7.22"
1970
0.33" 2.53" 1.43" 3.58" 7.87"
1969
0.00" 1.51" 2.57" 1.31" 5.39"
1968
0.00" 1.97" 1.12" Trace 3.09"
1967
0.36" 2.72" 2.00" 1.35" 6.43"
1966
0.02" 2.57" 3.31" 3.53" 9.43"
1965
0.00" 2.13" 1.12" 0.82" 4.07"
1964
0.01" 4.82" 3.90" 5.11" 13.84"
1963
0.00" 1.66" 2.86" 1.45" 5.97"
1962
0.25" 1.38" 0.48" 2.86" 4.97"
1961 0.26" 1.81" 4.28" 0.51" 6.86"
1960 0.00" 0.73" 2.09" 1.20" 4.02"
1959 0.00" 3.92" 2.79" Trace 6.71"
1958 0.51" 5.20" 0.91" 0.21" 6.83"
1957 0.09" 1.25" 3.92" Trace 5.26"
1956 0.36" 2.77" 1.12" 0.37" 4.62"
1955 0.00" 5.10" 7.93" 0.05" 13.08"
1954 1.46" 2.03" 2.00" 3.05" 8.54"
1953 0.00" 2.87" 0.46" Trace 3.33"
1952 0.00" 3.25" 1.56" 0.80" 5.61"
1951 0.00" 1.49" 2.66" 0.34" 4.49"
1950 1.24" 3.72" 0.86" 1.15" 6.97"
1949 0.02" 1.42" 1.92" 0.81" 4.17"
1948 Trace 3.02" 1.08" 1.11" 5.21"
1947 0.05" 0.27" 2.24" 0.47" 3.03"
1946 0.04" 2.44" 3.61" 2.26" 8.35"
1945 0.00" 2.84" 4.31" 0.14" 7.29"
1944 0.04" 1.77" 1.78" 2.08" 5.67"
1943 0.05" 1.09" 3.04" 3.59" 7.77"
1942 0.00" 0.68" 0.90" 1.78" 3.36"
1941 Trace 2.51" 1.99" 1.20" 5.70"
1940 1.14" 0.84" 2.84" 2.72" 7.54"
1939 Trace 0.61" 1.24" 1.53" 3.38"
1938 2.07" 0.78" 2.37" 0.50" 5.72"
1937 Trace 2.06" 1.29" 1.43" 4.78"
1936 0.06" 2.82" 3.03" 1.51" 7.42"
1935 Trace 0.87" 5.61" 0.88" 7.36"
1934 0.14" 1.16" 2.41" 1.07" 4.78"
1933 0.10" 1.60" 2.23" 1.62" 5.55"
1932 0.13" 2.58" 1.61" 0.23" 4.55"
1931 0.48" 1.07" 3.96" 0.94" 6.45"
1930 1.12" 1.03" 1.47" 0.37" 3.99"
1929 0.10" 1.94" 1.62" 4.28" 7.94"
1928 0.09" 1.78" 2.28" 0.36" 4.51"
1927 0.04" 1.33" 1.51" 2.34" 5.22"
1926 0.01" 0.70" 0.10" 2.82" 3.63"
1925 0.86" 1.20" 1.52" 2.96" 6.53"
1924 0.17" 1.15" 0.08" 0.19" 1.59"
1923 0.00" 3.00" 4.06" 0.23" 7.29"
1922 0.44" 1.73" 1.18" 1.73" 5.08"
1921 0.00" 6.24" 1.79" 3.01" 11.04"
1920 0.34" 0.25" 2.84" 0.74" 4.17"
1919 0.32" 5.53" 1.82" 2.54" 10.21"
1918 0.34" 1.54" 0.78" 0.13" 2.79"
1917 0.00" 3.90" 2.31" 0.88" 7.09"
1916 0.07" 2.03" 2.26" 1.29" 5.65"
1915 0.00" 2.39" 1.51" 0.92" 4.82"
1914 0.44" 2.94" 3.45" 0.40" 7.23"
1913 0.08" 1.32" 1.21" 0.14" 2.75"
1912 0.55" 3.00" 0.96" 0.01" 4.52"
1911 Trace 1.57" 2.06" 2.65" 6.28"
1910 0.12" 4.21" 2.55" 0.30" 7.18"
1909 0.54" 4.04" 1.36" 1.25" 7.19"
1908 Trace 4.77" 2.18" 0.55" 7.50"
1907 Trace 4.27" 3.46" 0.80" 8.53"
1906 0.00" 1.82" 2.53" 0.43" 4.78"
1905 0.01" 1.10" 0.56" 2.84" 4.51"
1904 0.18" 1.75" 2.65" 0.89" 5.47"
1903 0.00" 1.52" 2.67" 1.17" 5.36"
1902 0.19" 0.42" 1.31" 0.58" 2.50"
1901 0.00" 2.57" 1.99" 0.28" 4.84"
1900 0.00" 0.65" 0.95" 0.85" 2.45"
1899 0.68" 1.87" 1.82" 0.03" 4.40"
1898 0.20" 3.22" 3.94" 0.10" 7.46"
1897 0.00" 1.98" 3.43" 2.71" 8.12"
1896 0.19" 3.45" 1.25" 1.13" 6.02"
1895 0.01" 0.11" 4.48" 0.75" 5.35"
 
Tucson Monsoon start date occurrences by date (1949-2014)
* - June 15 to September 30 season definition went into effect in 2008.
Prior to 2008, the monsoon start date was determined when the
average daily dewpoint is 54° or greater for "3" consecutive days.
The start date would then be the first of the "3" consecutive days.
Dates # occurrences Year(s)
June 17 1 2000
June 18 1 1967
June 19 2 1994, 1958
June 20 1 1972
June 21 1 1950
June 22 . .
June 23 . .
June 24 2 2012*, 1954
June 25 2 1984, 1981
June 26 1 1999
June 27 2 1978, 1962
June 28 6 2009*, 2006, 1976, 1966, 1959, 1956
June 29 2 1990, 1986
June 30 3 1996, 1993, 1980
July 1 4 1974, 1970, 1961, 1949
July 2 2 1977, 1975
July 3 9 2014*, 2011*, 2008*, 2001, 1998, 1971, 1968, 1963, 1960
July 4 4 1991, 1973, 1953, 1952
July 5 1 2013*
July 6 2 1992, 1982
July 7 4 1988, 1983, 1965, 1957
July 8 5 2007, 2004, 1989, 1969, 1964
July 9 2 2010*, 2002
July 10 . .
July 11 4 2003, 1995, 1955, 1951
July 12 . .
July 13 . .
July 14 1 1985
July 15 . .
July 16 1 1979
July 17 1 1997
July 18 1 2005
July 19 . .
July 20 . .
July 21 . .
July 22 . .
July 23 . .
July 24 . .
July 25 1 1987
Average start dates by decade
1950s July 1 .
1960s July 2 .
1970s July 2 .
1980s July 6 Latest start on record (7/25/1987)
1990s July 3 .
2000s July 4 Earliest start on record (6/17/2000)
2010s July 2 .
 

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