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Monsoon
statistics for
Phoenix (1896-2008)
|
| Top
10 Wettest Monsoon |
Top
10 Driest Monsoon |
| 1)
9.56"/1984 |
6)
6.96"/1951 |
1)
0.35"/1924 |
6)
0.78"/1980 |
| 2)
9.31"/1911 |
7)
6.15"/1943 |
2)
0.51"/1914 |
7)
0.79"/1910 |
| 3)
7.45"/1946 |
8)
6.03"/1897 |
3T)
0.61"/1993 |
8T)
0.86"/1962 |
| 4)
7.30"/1939 |
9)
5.99"/1955 |
3T)
0.61"/1932 |
8T)
0.86"/1944 |
| 5)
7.20"/1896 |
10)
5.70"/2008 |
5)
0.74"/2007 |
10)
1.01"/1977 |
|
| YEAR |
Month
by month rainfall
|
| June
(15-30) |
July |
August |
September |
Total |
| AVG |
0.09" |
0.99" |
0.94" |
0.75" |
2.77" |
| 2008 |
Trace |
2.15" |
3.55" |
Trace |
5.70" |
| 2007 |
0.00" |
0.36" |
0.31" |
0.07" |
0.74" |
| 2006 |
0.00" |
1.29" |
1.26" |
0.78" |
3.33" |
| 2005 |
Trace |
0.16" |
1.21" |
0.16" |
1.53" |
| 2004 |
0.00" |
0.59" |
0.36" |
0.15" |
1.10" |
| 2003 |
0.00" |
0.61" |
0.51" |
0.25" |
1.37" |
| 2002 |
Trace |
1.18" |
Trace |
0.50" |
1.68" |
| 2001 |
0.01" |
0.67" |
0.46" |
0.00" |
1.14" |
| 2000 |
0.34" |
0.28" |
0.58" |
0.01" |
1.21" |
| 1999 |
0.00" |
2.96" |
0.92" |
1.31" |
5.19" |
| 1998 |
0.00" |
1.94" |
1.05" |
0.58" |
3.57" |
| 1997 |
0.00" |
0.17" |
1.39" |
0.45" |
2.01" |
| 1996 |
0.00" |
1.04" |
0.34" |
0.54" |
1.92" |
| 1995 |
Trace |
Trace |
3.50" |
1.08" |
4.58" |
| 1994 |
Trace |
0.25" |
0.02" |
1.74" |
2.01" |
| 1993 |
0.00" |
Trace |
0.55" |
0.06" |
0.61" |
| 1992 |
0.00" |
2.95" |
1.30" |
0.03" |
4.28" |
| 1991 |
0.00" |
0.14" |
0.12" |
0.81" |
1.07" |
| 1990 |
0.00" |
1.05" |
2.70" |
1.11" |
4.86" |
| 1989 |
0.00" |
0.13" |
1.11" |
0.47" |
1.71" |
| 1988 |
0.02" |
0.87" |
0.63" |
0.00" |
1.52" |
| 1987 |
0.00" |
1.08" |
0.45" |
0.57" |
2.10" |
| 1986 |
0.01" |
1.19" |
1.27" |
0.47" |
2.94" |
| 1985 |
0.00" |
0.98" |
0.21" |
1.60" |
2.79" |
| 1984 |
0.18" |
5.15" |
0.87" |
3.36" |
9.56" |
| 1983 |
0.00" |
0.38" |
2.48" |
2.43" |
5.29" |
| 1982 |
Trace |
0.43" |
1.97" |
0.12" |
2.52" |
| 1981 |
Trace |
1.14" |
0.11" |
0.18" |
1.43" |
| 1980 |
0.03" |
0.56" |
0.06" |
0.13" |
0.78" |
| 1979 |
Trace |
0.34" |
1.18" |
0.09" |
1.61" |
| 1978 |
0.01" |
1.44" |
1.79" |
Trace |
3.24" |
| 1977 |
0.00" |
0.30" |
0.18" |
0.53" |
1.01" |
| 1976 |
0.09" |
1.48" |
0.12" |
1.69" |
3.38" |
| 1975 |
0.00" |
0.38" |
Trace |
0.82" |
1.20" |
| 1974 |
0.00" |
0.84" |
1.15" |
1.07" |
3.06" |
| 1973 |
0.00" |
1.30" |
Trace |
0.00" |
1.30" |
| 1972 |
1.64" |
0.72" |
1.20" |
0.28" |
3.84" |
| 1971 |
0.00" |
0.24" |
0.99" |
0.92" |
2.15" |
| 1970 |
0.00" |
0.48" |
1.02" |
2.85" |
4.35" |
| 1969 |
0.00" |
0.28" |
0.14" |
2.11" |
2.53" |
| 1968 |
0.00" |
1.70" |
0.59" |
0.00" |
2.29" |
| 1967 |
0.44" |
0.99" |
0.02" |
0.13" |
1.58" |
| 1966 |
0.22" |
0.09" |
2.17" |
2.00" |
4.48" |
| 1965 |
0.91" |
0.16" |
0.18" |
0.60" |
1.85" |
| 1964 |
0.00" |
0.60" |
1.29" |
1.80" |
3.69" |
| 1963 |
0.00" |
0.03" |
2.68" |
Trace |
2.71" |
| 1962 |
0.12" |
0.10" |
0.25" |
0.39" |
0.86" |
| 1961 |
Trace |
0.40" |
2.11" |
0.22" |
2.73" |
| 1960 |
0.00" |
0.25" |
0.82" |
0.12" |
1.19" |
| 1959 |
Trace |
0.45" |
1.36" |
0.04" |
1.85" |
| 1958 |
0.05" |
0.31" |
0.72" |
2.25" |
3.33" |
| 1957 |
Trace |
0.72" |
0.85" |
0.00" |
1.57" |
| 1956 |
0.01" |
0.92" |
0.46" |
0.02" |
1.41" |
| 1955 |
0.00" |
4.19" |
1.80" |
Trace |
5.99" |
| 1954 |
0.02" |
0.36" |
0.55" |
0.44" |
1.37" |
| 1953 |
0.00" |
0.74" |
0.53" |
0.00" |
1.27" |
| 1952 |
0.00" |
1.46" |
1.41" |
0.06" |
2.93" |
| 1951 |
Trace |
1.30" |
5.33" |
0.33" |
6.96" |
| 1950 |
0.10" |
0.93" |
0.45" |
0.87" |
2.35" |
| 1949 |
0.14" |
0.36" |
0.41" |
0.89" |
1.80" |
| 1948 |
0.00" |
0.79" |
0.25" |
Trace |
1.04" |
| 1947 |
0.00" |
0.13" |
1.21" |
0.39" |
1.73" |
| 1946 |
0.00" |
2.56" |
2.01" |
2.88" |
7.45" |
| 1945 |
0.00" |
0.93" |
0.41" |
Trace |
1.34" |
| 1944 |
0.00" |
0.70" |
0.09" |
0.07" |
0.86" |
| 1943 |
0.01" |
0.25" |
4.92" |
0.97" |
6.15" |
| 1942 |
0.00" |
1.24" |
1.10" |
0.21" |
2.55" |
| 1941 |
Trace |
1.39" |
0.85" |
1.79" |
4.03" |
| 1940 |
Trace |
0.66" |
0.48" |
1.43" |
2.57" |
| 1939 |
0.00" |
0.71" |
1.18" |
5.41" |
7.30" |
| 1938 |
0.28" |
0.25" |
0.97" |
Trace |
1.50" |
| 1937 |
Trace |
0.49" |
0.05" |
1.17" |
1.71" |
| 1936 |
Trace |
2.49" |
0.32" |
0.43" |
3.24" |
| 1935 |
0.00" |
0.93" |
1.27" |
1.30" |
3.50" |
| 1934 |
0.03" |
0.11" |
1.07" |
0.66" |
1.87" |
| 1933 |
0.21" |
0.30" |
0.38" |
1.62" |
2.51" |
| 1932 |
0.06" |
0.11" |
0.10" |
0.34" |
0.61" |
| 1931 |
Trace |
0.02" |
1.70" |
0.23" |
1.95" |
| 1930 |
0.16" |
0.68" |
0.59" |
0.51" |
1.94" |
| 1929 |
Trace |
0.79" |
2.09" |
0.19" |
3.07" |
| 1928 |
0.00" |
0.11" |
1.47" |
0.44" |
2.02" |
| 1927 |
0.07" |
0.24" |
0.69" |
0.83" |
1.83" |
| 1926 |
Trace |
1.31" |
0.11" |
3.52" |
4.94" |
| 1925 |
0.21" |
0.03" |
0.61" |
0.95" |
1.80" |
| 1924 |
Trace |
0.09" |
0.14" |
0.12" |
0.35" |
| 1923 |
0.00" |
0.77" |
0.65" |
0.97" |
2.39" |
| 1922 |
Trace |
0.74" |
0.58" |
0.13" |
1.45" |
| 1921 |
0.00" |
0.38" |
1.62" |
0.33" |
2.33" |
| 1920 |
Trace |
0.25" |
0.75" |
0.10" |
1.10" |
| 1919 |
Trace |
1.05" |
2.40" |
1.93" |
5.38" |
| 1918 |
0.08" |
1.02" |
3.47" |
0.39" |
4.96" |
| 1917 |
0.00" |
3.97" |
0.11" |
0.55" |
4.63" |
| 1916 |
0.00" |
0.77" |
0.30" |
1.66" |
2.73" |
| 1915 |
0.00" |
1.12" |
0.25" |
0.10" |
1.47" |
| 1914 |
Trace |
0.21" |
0.30" |
Trace |
0.51" |
| 1913 |
0.00" |
0.94" |
0.32" |
0.13" |
1.39" |
| 1912 |
Trace |
1.29" |
0.72" |
0.14" |
2.15" |
| 1911 |
Trace |
6.47" |
1.68" |
1.16" |
9.31" |
| 1910 |
Trace |
0.65" |
0.14" |
Trace |
0.79" |
| 1909 |
Trace |
1.00" |
1.94" |
0.42" |
3.36" |
| 1908 |
0.00" |
2.98" |
0.81" |
0.51" |
4.30" |
| 1907 |
Trace |
2.18" |
0.80" |
0.02" |
3.00" |
| 1906 |
Trace |
0.20" |
2.07" |
Trace |
2.27" |
| 1905 |
Trace |
0.28" |
0.92" |
1.23" |
2.43" |
| 1904 |
Trace |
1.89" |
1.61" |
1.23" |
4.73" |
| 1903 |
0.00" |
0.70" |
0.70" |
3.16" |
4.56" |
| 1902 |
0.12" |
0.32" |
0.56" |
1.46" |
2.46" |
| 1901 |
0.00" |
0.35" |
1.73" |
Trace |
2.08" |
| 1900 |
0.00" |
1.70" |
0.01" |
0.12" |
1.83" |
| 1899 |
0.61" |
0.87" |
0.89" |
0.37" |
2.74" |
| 1898 |
0.01" |
0.24" |
1.03" |
0.04" |
1.32" |
| 1897 |
0.00" |
0.59" |
1.77" |
3.67" |
6.03" |
| 1896 |
Trace |
4.25" |
1.77" |
1.18" |
7.20" |
|
| |
| Phoenix
Monsoon start date occurrences by date (1948-2007) |
| The
monsoon start date is determined when the average daily
|
| dewpoint
is
55 degrees or greater for "3" consecutive days. |
| The
start date is the first of the "3"
consecutive days. |
|
| Dates |
#
occurrences |
Year(s) |
| June
17 |
1 |
2000 |
| June
18 |
. |
. |
| June
19 |
1 |
1958 |
| June
20 |
. |
. |
| June
21 |
1 |
2001 |
| June
22 |
. |
. |
| June
23 |
1 |
1954 |
| June
24 |
. |
. |
| June
25 |
2 |
1999,
1984 |
| June
26 |
. |
. |
| June
27 |
2 |
1966,
1962 |
| June
28 |
1 |
1959 |
| June
29 |
2 |
1990,
1986 |
| June
30 |
1 |
1996 |
| July
1 |
3 |
1993,
1977, 1949 |
| July
2 |
2 |
2006,
1961 |
| July
3 |
6 |
1975,
1973, 1968, 1967, 1957, 1952 |
| July
4 |
4 |
1998,
1991, 1953, 1950 |
| July
5 |
. |
. |
| July
6 |
3 |
1992,
1982, 1981 |
| July
7 |
3 |
1988,
1983, 1964 |
| July
8 |
1 |
1989 |
| July
9 |
5 |
2002,
1985, 1978, 1976, 1965 |
| July
10 |
1 |
1956 |
| July
11 |
4 |
1995,
1969, 1955, 1951 |
| July
12 |
1 |
2004 |
| July
13 |
2 |
1972,
1971 |
| July
14 |
1 |
1974 |
| July
15 |
. |
. |
| July
16 |
. |
. |
| July
17 |
4 |
1994,
1979, 1970, 1948 |
| July
18 |
2 |
2005,
2003 |
| July
19 |
3 |
2007,
1980, 1963 |
| July
20 |
. |
. |
| July
21 |
2 |
1997,
1960 |
| July
22 |
. |
. |
| July
23 |
. |
. |
| July
24 |
. |
. |
| July
25 |
1 |
1987 |
| Average
start dates by decade |
| 1950s |
July
3 |
. |
| 1960s |
July
7 |
. |
| 1970s |
July
10 |
. |
| 1980s |
July
8 |
Latest
start on record (7/25/1987) |
| 1990s |
July
6 |
. |
| 2000s |
July
7 |
Earliest
start on record (6/17/2000) |
|
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Webmaster
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Tucson Weather Forecast Office
520 North Park Ave, Suite 304
Tucson, AZ 85719
Tel: (520) 670-6526
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