ARIZONA MONSOON AT
PHOENIX - NWS Phoenix records |
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MONSOON (JUL-AUG-SEP) |
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Monsoon |
RAIN |
T-DAYS |
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Amt. Or |
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From June 1st |
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YEAR |
BEGAN |
ENDED |
LENGTH |
Days1 |
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|
Record |
#Days |
Year |
Date |
|
DOYStart |
DOYEnd |
|
|
1948 |
17-Jul |
1-Sep |
47 |
40 |
1.04 |
11 |
|
Longest |
104 |
1966 |
|
36312 |
36358 |
36404 |
46 |
92 |
|
36 |
104 |
1949 |
1-Jul |
21-Sep |
83 |
60 |
1.66 |
17 |
|
Shortest |
34 |
1979 |
|
36677 |
36342 |
36424 |
30 |
112 |
|
36 |
104 |
1950 |
4-Jul |
8-Sep |
67 |
40 |
2.25 |
13 |
|
Mean Length |
70 |
|
37042 |
36345 |
36411 |
33 |
99 |
|
36 |
104 |
1951 |
11-Jul |
17-Sep |
69 |
65 |
6.98 |
9 |
|
Earliest Start |
|
1925 |
16-Jun |
|
|
37407 |
36352 |
36420 |
40 |
108 |
|
36 |
104 |
1952 |
3-Jul |
24-Sep |
84 |
66 |
2.93 |
16 |
|
Latest Start |
|
1987 |
25-Jul |
|
l |
37773 |
36344 |
36427 |
32 |
115 |
|
36 |
104 |
1953 |
4-Jul |
31-Aug |
59 |
54 |
1.27 |
14 |
|
Mean Start |
|
6-Jul |
|
38138 |
36345 |
36403 |
33 |
91 |
|
36 |
104 |
1954 |
23-Jun |
13-Sep |
83 |
76 |
1.35 |
19 |
|
Earliest End |
|
2004 & 2000 |
19-Aug |
|
38503 |
36334 |
36416 |
22 |
104 |
|
36 |
104 |
1955 |
11-Jul |
18-Sep |
70 |
59 |
5.99 |
18 |
|
Latest End |
|
1983 & 1977 |
10-Oct |
|
|
38868 |
36352 |
36421 |
40 |
109 |
|
36 |
104 |
1956 |
10-Jul |
27-Aug |
49 |
37 |
1.40 |
14 |
|
Mean End |
|
13-Sep |
|
l |
39234 |
36351 |
36399 |
39 |
87 |
|
36 |
104 |
1957 |
3-Jul |
30-Aug |
59 |
57 |
1.57 |
17 |
|
Maximum Rain |
9.38 in |
1984 |
|
39599 |
36344 |
36402 |
32 |
90 |
|
36 |
104 |
1958 |
19-Jun |
13-Sep |
87 |
68 |
3.28 |
20 |
|
Minimum Rain |
0.35 in |
1924 |
|
39964 |
36330 |
36416 |
18 |
104 |
|
36 |
104 |
1959 |
28-Jun |
15-Sep |
80 |
74 |
1.85 |
18 |
|
Mean Rain |
2.54 in |
(1948-2006) |
|
40329 |
36339 |
36418 |
27 |
106 |
|
36 |
104 |
1960 |
21-Jul |
16-Sep |
58 |
54 |
1.19 |
18 |
|
Most T-Storm Days |
29 |
1984 |
|
40695 |
36362 |
36419 |
50 |
107 |
|
36 |
104 |
1961 |
2-Jul |
18-Sep |
79 |
74 |
2.73 |
21 |
|
Fewest T-Storm Days |
5 |
1991 & 1993 |
|
41060 |
36343 |
36421 |
31 |
109 |
|
36 |
104 |
1962 |
27-Jun |
22-Aug |
57 |
27 |
0.71 |
10 |
|
Mean T-Storm Days |
16 |
(1948-2006) |
|
41425 |
36338 |
36394 |
26 |
82 |
|
36 |
104 |
1963 |
19-Jul |
6-Sep |
60 |
44 |
2.71 |
23 |
|
41790 |
36360 |
36409 |
48 |
97 |
|
36 |
104 |
1964 |
7-Jul |
15-Sep |
71 |
60 |
3.69 |
18 |
|
42156 |
36348 |
36418 |
36 |
106 |
|
36 |
104 |
1965 |
9-Jul |
19-Sep |
73 |
60 |
0.94 |
13 |
|
42521 |
36350 |
36422 |
38 |
110 |
|
36 |
104 |
1966 |
27-Jun |
8-Oct |
104 |
65 |
4.26 |
20 |
|
42886 |
36338 |
36441 |
26 |
129 |
|
36 |
104 |
1967 |
3-Jul |
13-Sep |
73 |
67 |
1.14 |
18 |
|
43251 |
36344 |
36416 |
32 |
104 |
|
36 |
104 |
1968 |
3-Jul |
3-Sep |
63 |
43 |
2.29 |
17 |
|
43617 |
36344 |
36406 |
32 |
94 |
|
36 |
104 |
1969 |
11-Jul |
19-Sep |
71 |
67 |
2.53 |
24 |
|
43982 |
36352 |
36422 |
40 |
110 |
|
36 |
104 |
1970 |
17-Jul |
13-Sep |
59 |
51 |
4.35 |
25 |
|
44347 |
36358 |
36416 |
46 |
104 |
|
36 |
104 |
1971 |
13-Jul |
10-Sep |
60 |
55 |
2.15 |
18 |
|
44712 |
36354 |
36413 |
42 |
101 |
|
36 |
104 |
1972 |
13-Jul |
10-Sep |
60 |
43 |
2.20 |
15 |
|
45078 |
36354 |
36413 |
42 |
101 |
|
36 |
104 |
1973 |
3-Jul |
22-Aug |
51 |
36 |
1.30 |
8 |
|
45443 |
36344 |
36394 |
32 |
82 |
|
36 |
104 |
1974 |
14-Jul |
28-Sep |
77 |
47 |
3.06 |
21 |
|
45808 |
36355 |
36431 |
43 |
119 |
|
36 |
104 |
1975 |
3-Jul |
19-Sep |
79 |
58 |
1.20 |
14 |
|
46173 |
36344 |
36422 |
32 |
110 |
|
36 |
104 |
1976 |
9-Jul |
28-Sep |
82 |
47 |
3.29 |
16 |
|
46539 |
36350 |
36431 |
38 |
119 |
|
36 |
104 |
1977 |
1-Jul |
10-Oct |
102 |
77 |
2.01 |
16 |
|
46904 |
36342 |
36443 |
30 |
131 |
|
36 |
104 |
1978 |
9-Jul |
9-Sep |
63 |
49 |
3.23 |
22 |
|
47269 |
36350 |
36412 |
38 |
100 |
|
36 |
104 |
1979 |
17-Jul |
19-Aug |
34 |
30 |
1.61 |
13 |
|
47634 |
36358 |
36391 |
46 |
79 |
|
36 |
104 |
1980 |
19-Jul |
7-Sep |
51 |
39 |
0.75 |
12 |
|
48000 |
36360 |
36410 |
48 |
98 |
|
36 |
104 |
1981 |
6-Jul |
24-Sep |
81 |
68 |
1.43 |
13 |
|
48365 |
36347 |
36427 |
35 |
115 |
|
36 |
104 |
1982 |
6-Jul |
26-Sep |
83 |
71 |
2.52 |
19 |
|
48730 |
36347 |
36429 |
35 |
117 |
|
36 |
104 |
1983 |
7-Jul |
10-Oct |
96 |
87 |
5.29 |
25 |
|
49095 |
36348 |
36443 |
36 |
131 |
|
36 |
104 |
1984 |
25-Jun |
5-Oct |
103 |
99 |
9.38 |
29 |
|
49461 |
36336 |
36438 |
24 |
126 |
|
36 |
104 |
1985 |
9-Jul |
2-Sep |
56 |
39 |
2.79 |
17 |
|
49826 |
36350 |
36405 |
38 |
93 |
|
36 |
104 |
1986 |
29-Jun |
3-Sep |
67 |
56 |
2.93 |
17 |
|
50191 |
36340 |
36406 |
28 |
94 |
|
36 |
104 |
1987 |
25-Jul |
5-Sep |
43 |
28 |
2.10 |
15 |
|
50556 |
36366 |
36408 |
54 |
96 |
|
36 |
104 |
1988 |
7-Jul |
2-Sep |
58 |
47 |
1.50 |
12 |
|
50922 |
36348 |
36405 |
36 |
93 |
|
36 |
104 |
1989 |
8-Jul |
6-Sep |
61 |
45 |
1.71 |
12 |
|
51287 |
36349 |
36409 |
37 |
97 |
|
36 |
104 |
1990 |
29-Jun |
25-Sep |
89 |
77 |
4.86 |
20 |
|
51652 |
36340 |
36428 |
28 |
116 |
|
36 |
104 |
1991 |
4-Jul |
10-Sep |
69 |
36 |
1.07 |
5 |
|
52017 |
36345 |
36413 |
33 |
101 |
|
36 |
104 |
1992 |
6-Jul |
22-Sep |
79 |
60 |
4.28 |
22 |
|
52383 |
36347 |
36425 |
35 |
113 |
|
36 |
104 |
1993 |
1-Jul |
13-Sep |
75 |
41 |
0.61 |
5 |
|
52748 |
36342 |
36416 |
30 |
104 |
|
36 |
104 |
1994 |
17-Jul |
13-Sep |
59 |
54 |
2.01 |
12 |
|
53113 |
36358 |
36416 |
46 |
104 |
|
36 |
104 |
1995 |
11-Jul |
18-Sep |
70 |
51 |
4.58 |
15 |
|
53478 |
36352 |
36421 |
40 |
109 |
|
36 |
104 |
1996 |
30-Jun |
13-Sep |
76 |
70 |
1.92 |
18 |
|
53844 |
36341 |
36416 |
29 |
104 |
|
36 |
104 |
1997 |
21-Jul |
19-Sep |
61 |
57 |
2.10 |
15 |
|
54209 |
36362 |
36422 |
50 |
110 |
|
36 |
104 |
1998 |
4-Jul |
16-Sep |
75 |
71 |
3.57 |
24 |
|
54574 |
36345 |
36419 |
33 |
107 |
|
36 |
104 |
1999 |
25-Jun |
25-Sep |
93 |
84 |
5.19 |
18 |
|
54939 |
36336 |
36428 |
24 |
116 |
|
36 |
104 |
2000 |
17-Jun |
31-Aug |
76 |
51 |
1.20 |
13 |
|
55305 |
36328 |
36403 |
16 |
91 |
|
36 |
104 |
2001 |
21-Jun |
4-Sep |
76 |
50 |
1.13 |
10 |
|
55670 |
36332 |
36407 |
20 |
95 |
|
36 |
104 |
2002 |
9-Jul |
11-Sep |
65 |
36 |
1.68 |
7 |
|
56035 |
36350 |
36414 |
38 |
102 |
|
36 |
104 |
2003 |
18-Jul |
10-Sep |
55 |
47 |
1.37 |
10 |
|
56400 |
36359 |
36413 |
47 |
101 |
|
36 |
104 |
2004 |
12-Jul |
19-Aug |
39 |
26 |
1.10 |
15 |
|
56766 |
36353 |
36391 |
41 |
79 |
|
36 |
104 |
2005 |
18-Jul |
10-Sep |
55 |
43 |
1.53 |
21 |
|
57131 |
36359 |
36413 |
47 |
101 |
|
36 |
104 |
2006 |
2-Jul |
14-Sep |
74 |
55 |
3.33 |
26 |
|
57496 |
36343 |
36417 |
31 |
105 |
|
36 |
104 |
2007 |
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Through 07/03/2007 |
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57861 |
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#VALUE! |
#VALUE! |
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69.46 |
54.88 |
2.54 |
16.32 |
Averages |
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1 Number of days with an average dew point temperature equal or
greater than 55oF. |
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36 |
104 |
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*However,
June 20, 1994, met the conditions of the first of three consecutive days with
an average dew point temperature equal or greater than 55oF. The wet portion of
the 1994 monsoon began July 17. |
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*Remnants
of Hurricane Nora increased dew point temperatures to equal or exceed 55oF for 11 non-monsoon
days, Sep 24-Oct 4, 1997. |
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*Monsoon
circulation ended by Sept 2, 1999. But
moisture from two tropical storms (Greg and Hilary) was advected into AZ
(Sept 9-25) with the help of a persistent CA coast low. NWS called Sept. 25 the official end of the
monsoon for PHX. |
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*Monsoon
circulation ended Aug. 31, 2000.
Moisture seeped into southern AZ a couple times in September, but not
with enough vigor to extend the season past Aug. 31. |
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*Monsoon
circulation established Jul 11, 2003. |
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