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, July 1988

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1988
1-Month
2.26"
(57.40mm)
3.86"
(98.04mm)
-1.60"
(-40.64mm)
15th Driest
Driest since:
1936
114th Wettest
Wettest since:
1993
Jun–Jul 1988
2-Month
3.98"
(101.09mm)
8.49"
(215.65mm)
-4.51"
(-114.56mm)
3rd Driest
Driest since:
1936
126th Wettest
Wettest since:
1993
Ties: 2012
May–Jul 1988
3-Month
5.75"
(146.05mm)
12.53"
(318.26mm)
-6.78"
(-172.21mm)
1st Driest
Driest since:
1988
128th Wettest
Wettest since:
1993
Apr–Jul 1988
4-Month
7.66"
(194.56mm)
15.48"
(393.19mm)
-7.82"
(-198.63mm)
2nd Driest
Driest since:
1936
127th Wettest
Wettest since:
1993
Mar–Jul 1988
5-Month
8.45"
(214.63mm)
17.43"
(442.72mm)
-8.98"
(-228.09mm)
2nd Driest
Driest since:
1936
127th Wettest
Wettest since:
1993
Feb–Jul 1988
6-Month
8.92"
(226.57mm)
18.45"
(468.63mm)
-9.53"
(-242.06mm)
1st Driest
Driest since:
1988
128th Wettest
Wettest since:
1993
Jan–Jul 1988
7-Month
9.68"
(245.87mm)
19.43"
(493.52mm)
-9.75"
(-247.65mm)
1st Driest
Driest since:
1988
128th Wettest
Wettest since:
1993
Dec 1987–Jul 1988
8-Month
11.48"
(291.59mm)
20.53"
(521.46mm)
-9.05"
(-229.87mm)
1st Driest
Driest since:
1988
127th Wettest
Wettest since:
1993
Nov 1987–Jul 1988
9-Month
14.12"
(358.65mm)
22.27"
(565.66mm)
-8.15"
(-207.01mm)
2nd Driest
Driest since:
1934
126th Wettest
Wettest since:
1993
Oct 1987–Jul 1988
10-Month
14.90"
(378.46mm)
24.58"
(624.33mm)
-9.68"
(-245.87mm)
2nd Driest
Driest since:
1934
126th Wettest
Wettest since:
1993
Sep 1987–Jul 1988
11-Month
17.48"
(443.99mm)
28.28"
(718.31mm)
-10.80"
(-274.32mm)
1st Driest
Driest since:
1988
127th Wettest
Wettest since:
1993
Aug 1987–Jul 1988
12-Month
25.14"
(638.56mm)
32.14"
(816.36mm)
-7.00"
(-177.80mm)
7th Driest
Driest since:
1956
121st Wettest
Wettest since:
2008
Feb 1987–Jul 1988
18-Month
42.21"
(1,072.13mm)
50.60"
(1,285.24mm)
-8.39"
(-213.11mm)
10th Driest
Driest since:
1911
118th Wettest
Wettest since:
2008
Aug 1986–Jul 1988
24-Month
58.97"
(1,497.84mm)
64.31"
(1,633.47mm)
-5.34"
(-135.63mm)
25th Driest
Driest since:
1934
102nd Wettest
Wettest since:
2008
Aug 1985–Jul 1988
36-Month
98.29"
(2,496.57mm)
96.40"
(2,448.56mm)
1.89"
(48.01mm)
75th Driest
Driest since:
1956
51st Wettest
Wettest since:
2010
Aug 1984–Jul 1988
48-Month
126.03"
(3,201.16mm)
128.38"
(3,260.85mm)
-2.35"
(-59.69mm)
48th Driest
Driest since:
1957
77th Wettest
Wettest since:
2010
Aug 1983–Jul 1988
60-Month
166.19"
(4,221.23mm)
160.37"
(4,073.40mm)
5.82"
(147.83mm)
80th Driest
Driest since:
1957
44th Wettest
Wettest since:
2011

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