Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Iowa

Precipitation Rankings, August 2005

View Period (Months):
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  • Record Driest
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  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 2005
1-Month
3.02"
(76.71mm)
3.84"
(97.54mm)
-0.82"
(-20.83mm)
42nd Driest
Driest since:
1984
87th Wettest
Wettest since:
2007
Ties: 2011
Jul–Aug 2005
2-Month
6.29"
(159.77mm)
7.70"
(195.58mm)
-1.41"
(-35.81mm)
38th Driest
Driest since:
1947
91st Wettest
Wettest since:
1993
Jun–Aug 2005
3-Month
11.54"
(293.12mm)
12.33"
(313.18mm)
-0.79"
(-20.06mm)
55th Driest
Driest since:
1927
74th Wettest
Wettest since:
1993
May–Aug 2005
4-Month
15.39"
(390.91mm)
16.38"
(416.05mm)
-0.99"
(-25.14mm)
55th Driest
Driest since:
1936
74th Wettest
Wettest since:
1993
Apr–Aug 2005
5-Month
18.84"
(478.54mm)
19.32"
(490.73mm)
-0.48"
(-12.19mm)
55th Driest
Driest since:
1936
74th Wettest
Wettest since:
1993
Mar–Aug 2005
6-Month
19.89"
(505.21mm)
21.28"
(540.51mm)
-1.39"
(-35.30mm)
43rd Driest
Driest since:
1936
86th Wettest
Wettest since:
1993
Feb–Aug 2005
7-Month
21.41"
(543.81mm)
22.29"
(566.17mm)
-0.88"
(-22.36mm)
52nd Driest
Driest since:
1988
77th Wettest
Wettest since:
1993
Jan–Aug 2005
8-Month
22.72"
(577.09mm)
23.27"
(591.06mm)
-0.55"
(-13.97mm)
57th Driest
Driest since:
1988
72nd Wettest
Wettest since:
1993
Dec 2004–Aug 2005
9-Month
23.30"
(591.82mm)
24.37"
(619.00mm)
-1.07"
(-27.18mm)
51st Driest
Driest since:
1988
77th Wettest
Wettest since:
1993
Nov 2004–Aug 2005
10-Month
25.51"
(647.95mm)
26.11"
(663.19mm)
-0.60"
(-15.24mm)
57th Driest
Driest since:
1934
71st Wettest
Wettest since:
1993
Oct 2004–Aug 2005
11-Month
27.56"
(700.02mm)
28.42"
(721.87mm)
-0.86"
(-21.85mm)
55th Driest
Driest since:
1934
73rd Wettest
Wettest since:
1993
Sep 2004–Aug 2005
12-Month
30.22"
(767.59mm)
32.12"
(815.85mm)
-1.90"
(-48.26mm)
44th Driest
Driest since:
1934
84th Wettest
Wettest since:
1993
Mar 2004–Aug 2005
18-Month
56.00"
(1,422.40mm)
53.43"
(1,357.12mm)
2.57"
(65.28mm)
80th Driest
Driest since:
1911
48th Wettest
Wettest since:
1993
Sep 2003–Aug 2005
24-Month
66.98"
(1,701.29mm)
64.28"
(1,632.71mm)
2.70"
(68.58mm)
75th Driest
Driest since:
1934
52nd Wettest
Wettest since:
1993
Sep 2002–Aug 2005
36-Month
92.57"
(2,351.28mm)
96.39"
(2,448.31mm)
-3.82"
(-97.03mm)
39th Driest
Driest since:
1957
87th Wettest
Wettest since:
2010
Sep 2001–Aug 2005
48-Month
125.21"
(3,180.33mm)
128.37"
(3,260.60mm)
-3.16"
(-80.27mm)
41st Driest
Driest since:
1936
84th Wettest
Wettest since:
2010
Sep 2000–Aug 2005
60-Month
158.62"
(4,028.95mm)
160.37"
(4,073.40mm)
-1.75"
(-44.45mm)
48th Driest
Driest since:
1957
76th Wettest
Wettest since:
2011

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