MONSOON THUNDERSTORM
TOTAL MONSOON RAINFALL (1987-Present)  (All Rainfall in inches)

                       TUCSON


YEAR |  START DATE  |  JUNE  |  JULY  |  AUGUST  |  SEPTEMBER  |  TOTAL
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AVERAGE    JULY  3     |    0.15  |    2.25  |      2.39      |        1.29          |     6.08
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1987    |        JULY 25    |    0.00  |    0.37   |     2.79      |        2.30          |     5.46
1988    |        JULY   7    |    0.15  |   1.69    |     3.64      |        0.80          |     6.26
1989    |        JU LY  8    |    0.06  |   1.42    |     0.90      |        0.02          |     2.40
1990    |        JUNE 29    |    0.07  |   5.45    |     2.70      |        1.63          |     9.85
1991    |        JULY   4    |    0.00  |   0.44    |     2.17      |        1.54          |     4.15
1992    |        JULY   6    |    0.00  |   0.93    |     4.55      |        0.94          |     6.42
1993    |        JUNE 30    |    0.02  |   0.26    |     4.93      |        0.46          |     5.67
1994    |        JUNE 19*  |    0.26  |   0.41    |     0.45      |        1.46          |     2.56
1995    |        JULY 11    |   0.00   |   0.04    |     3.71      |        2.29          |     6.04
1996    |        JUNE 30    |   0.00   |   1.88    |     1.87      |        3.68          |     7.43
1997    |        JULY 17    |   0.00   |   0.51    |     2.32      |        1.43          |     4.25
1998    |        JULY  3    |    0.00   |   4.06    |    1.70       |        1.10          |     6.86
1999    |        JUNE 26    |   0.16   |   4.15    |    3.05       |         0.97         |     8.33
2000    |        JUNE 17    |   1.56   |   1.59    |    1.70       |         0.02         |     4.87
2001    |        JULY  3     |   0.54   |   1.09    |    0.85       |         0.33         |     2.81
2002    |        JULY  9     |   0.00   |   2.47    |    1.63      |         1.69          |     5.79
2003    |        JULY 11    |   0.00   |   2.50    |    2.04       |         2.16          |     6.70
2004    |        JULY  8     |   0.24   |   0.86    |    0.95      |         0.62          |     2.67
2005    |        JULY 18    |   0.01   |   0.72    |    4.52      |         0.05           |    5.31
2006    |        JUNE 28    |   0.50   |   5.40    |    3.01      |         1.60           |   10.20
2007    |        JULY 08    |   Trace  |   5.22   |     0.90      |         0.45           |    6.57
2008    |        *******     |   0.18   |   3.42   |     1.70      |         0.24           |    5.52
2009    |        *******     |   0.01   |   1.78   |     0.33      |         0.74           |    2.86
2010    |        *******     |   0.00   |   2.71   |     2.04      |         0.70           |    5.45
2011    |        *******     |   0.03   |   1.64   |     1.35      |         5.60           |    8.62
2012    |        *******     |   0.34   |   4.13   |     1.17      |         0.38           |    6.02
2013    |        *******     |   0.03   |   2.60   |     0.48      |
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****** Note: NWS will no longer declare a specific start date for the monsoon and instead will follow the
monsoon season definition which runs from 15 June through 30 September.