Table 1. Precipitation data from Portola, CA weather station.

Month #	Date	Precipitation (inches)
1	Jan-1999	5.9
2	Feb	7.66
3	march	2.33
4	April	1.22
5	May	0
6	June	0.08
7	July	0
8	Aug	0.51
9	Sept	0.14
10	Oct	1.11
11	Nov	1.57
12	Dec	0.45
13	Jan-2000	8.27
14	Feb	6.6
15	march	0.79
16	April	0.87
17	May	0.63
18	June	0.07
19	July	0
20	Aug	0
21	Sept	0.54
22	Oct	1.37
23	Nov	1.25
24	Dec	0.64
25	Jan-2001	0.62
26	Feb	1.7
27	march	2.05
28	April	1.23
29	May	0
30	June	0.02
31	July	1.86
32	Aug	0
33	Sept	0.15
34	Oct	0.4
35	Nov	2.64
36	Dec	5.25
37	Jan-2002	1.47
38	Feb	0.45
39	march	2.66
40	April	1.28
41	May	0.37
42	June	0.1
43	July	0.15
44	Aug	0
45	Sept	0
46	Oct	0
47	Nov	3.36
48	Dec	8.01
49	Jan-2003	1.77
50	Feb	0.81
51	march	1.74
52	April	3.77
53	May	0.65
54	June	0.05
55	July	0.08
56	Aug	0.84
57	Sept	0
58	Oct	0
59	Nov	1.34
60	Dec	7.02
61	Jan-2004	2.89
62	Feb	5.32
63	march	0.56
64	April	0.05
65	May	0.48
66	June	0.25
67	July	0
68	Aug	0
69	Sept	0.22
70	Oct	2.54
71	Nov	1.29
72	Dec	4.46
73	Jan-2005	3.83
74	Feb	1.19
75	march	3.94
76	April	0.73