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 1911

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 1911
1-Month
2.40"
(60.96mm)
3.86"
(98.04mm)
-1.46"
(-37.08mm)
22nd Driest
Driest since:
1936
107th Wettest
Wettest since:
1993
Jun–Jul 1911
2-Month
4.31"
(109.47mm)
8.49"
(215.65mm)
-4.18"
(-106.18mm)
6th Driest
Driest since:
1936
123rd Wettest
Wettest since:
1993
May–Jul 1911
3-Month
8.23"
(209.04mm)
12.53"
(318.26mm)
-4.30"
(-109.22mm)
6th Driest
Driest since:
1988
123rd Wettest
Wettest since:
1993
Apr–Jul 1911
4-Month
11.29"
(286.77mm)
15.48"
(393.19mm)
-4.19"
(-106.42mm)
9th Driest
Driest since:
1936
120th Wettest
Wettest since:
1993
Mar–Jul 1911
5-Month
12.16"
(308.86mm)
17.43"
(442.72mm)
-5.27"
(-133.86mm)
5th Driest
Driest since:
1936
124th Wettest
Wettest since:
1993
Feb–Jul 1911
6-Month
14.92"
(378.97mm)
18.45"
(468.63mm)
-3.53"
(-89.66mm)
17th Driest
Driest since:
1988
112th Wettest
Wettest since:
1993
Jan–Jul 1911
7-Month
15.79"
(401.07mm)
19.43"
(493.52mm)
-3.64"
(-92.45mm)
17th Driest
Driest since:
1988
112th Wettest
Wettest since:
1993
Dec 1910–Jul 1911
8-Month
16.16"
(410.46mm)
20.53"
(521.46mm)
-4.37"
(-111.00mm)
13th Driest
Driest since:
1988
115th Wettest
Wettest since:
1993
Nov 1910–Jul 1911
9-Month
16.50"
(419.10mm)
22.27"
(565.66mm)
-5.77"
(-146.56mm)
8th Driest
Driest since:
1934
120th Wettest
Wettest since:
1993
Oct 1910–Jul 1911
10-Month
17.32"
(439.93mm)
24.58"
(624.33mm)
-7.26"
(-184.40mm)
4th Driest
Driest since:
1934
124th Wettest
Wettest since:
1993
Sep 1910–Jul 1911
11-Month
21.06"
(534.92mm)
28.28"
(718.31mm)
-7.22"
(-183.39mm)
9th Driest
Driest since:
1988
119th Wettest
Wettest since:
1993
Aug 1910–Jul 1911
12-Month
25.15"
(638.81mm)
32.14"
(816.36mm)
-6.99"
(-177.55mm)
8th Driest
Driest since:
1956
120th Wettest
Wettest since:
2008
Ties: 2012
Feb 1910–Jul 1911
18-Month
34.41"
(874.01mm)
50.60"
(1,285.24mm)
-16.19"
(-411.23mm)
1st Driest
Driest since:
1911
127th Wettest
Wettest since:
2008
Aug 1909–Jul 1911
24-Month
51.09"
(1,297.69mm)
64.31"
(1,633.47mm)
-13.22"
(-335.78mm)
5th Driest
Driest since:
1934
122nd Wettest
Wettest since:
2008
Aug 1908–Jul 1911
36-Month
87.13"
(2,213.10mm)
96.40"
(2,448.56mm)
-9.27"
(-235.46mm)
15th Driest
Driest since:
1956
111th Wettest
Wettest since:
2010
Aug 1907–Jul 1911
48-Month
121.16"
(3,077.46mm)
128.38"
(3,260.85mm)
-7.22"
(-183.39mm)
24th Driest
Driest since:
1957
101st Wettest
Wettest since:
2010
Aug 1906–Jul 1911
60-Month
155.57"
(3,951.48mm)
160.37"
(4,073.40mm)
-4.80"
(-121.92mm)
36th Driest
Driest since:
1957
88th Wettest
Wettest since:
2011

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