Iowa, Climate Division 9 May 2004 Precipitation Rankings
1901-2000
Inches
1
5.75
4.04
1.71
103
27
1992
1996
2003
2002
top-third
1943
2
7.22
7.38
-0.16
58
72
1956
2013
2000
2003
normal
1931
3
11.04
9.74
1.30
79
51
1956
1973
2003
2002
normal
1967,1999
4
11.93
10.97
0.96
80
50
1956
1973
2003
2002
normal
5
13.14
12.29
0.85
76
54
1956
1973
2003
2002
normal
6
15.88
13.78
2.10
93
36
1956
1973
2003
2001
top-third
7
18.99
15.90
3.09
99
30
1956
1973
2003
2001
top-third
8
20.23
18.53
1.70
86
43
1956
2019
2003
2002
top-third
9
24.93
22.45
2.48
92
37
1956
2019
2003
2001
top-third
10
26.61
26.20
0.41
69
60
1956
2019
2003
2002
normal
1897
11
30.91
30.18
0.73
74
55
1956
2019
2003
2001
normal
12
35.31
34.73
0.58
68
61
1956
1903
2003
2002
normal
18
46.17
48.55
-2.38
49
79
1902
1974
2003
2002
normal
24
62.62
69.46
-6.84
27
101
1957
2011
1990
2003
bottom-third
1938
36
98.06
104.12
-6.06
32
95
1958
2011
1990
2003
bottom-third
48
141.39
138.68
2.71
69
57
1957
2011
2003
2002
normal
60
167.91
173.32
-5.41
44
81
1958
2011
1992
2003
normal