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 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
August 1988
1-Month
4.13"
(104.90mm)
3.84"
(97.54mm)
0.29"
(7.36mm)
82nd Driest
Driest since:
1984
47th Wettest
Wettest since:
2007
Jul–Aug 1988
2-Month
6.39"
(162.31mm)
7.70"
(195.58mm)
-1.31"
(-33.27mm)
39th Driest
Driest since:
1947
90th Wettest
Wettest since:
1993
Jun–Aug 1988
3-Month
8.11"
(205.99mm)
12.33"
(313.18mm)
-4.22"
(-107.19mm)
10th Driest
Driest since:
1927
119th Wettest
Wettest since:
1993
May–Aug 1988
4-Month
9.88"
(250.95mm)
16.38"
(416.05mm)
-6.50"
(-165.10mm)
3rd Driest
Driest since:
1936
126th Wettest
Wettest since:
1993
Apr–Aug 1988
5-Month
11.79"
(299.47mm)
19.32"
(490.73mm)
-7.53"
(-191.26mm)
3rd Driest
Driest since:
1936
126th Wettest
Wettest since:
1993
Mar–Aug 1988
6-Month
12.58"
(319.53mm)
21.28"
(540.51mm)
-8.70"
(-220.98mm)
2nd Driest
Driest since:
1936
127th Wettest
Wettest since:
1993
Feb–Aug 1988
7-Month
13.05"
(331.47mm)
22.29"
(566.17mm)
-9.24"
(-234.70mm)
1st Driest
Driest since:
1988
128th Wettest
Wettest since:
1993
Jan–Aug 1988
8-Month
13.81"
(350.77mm)
23.27"
(591.06mm)
-9.46"
(-240.29mm)
1st Driest
Driest since:
1988
128th Wettest
Wettest since:
1993
Dec 1987–Aug 1988
9-Month
15.61"
(396.49mm)
24.37"
(619.00mm)
-8.76"
(-222.51mm)
1st Driest
Driest since:
1988
127th Wettest
Wettest since:
1993
Nov 1987–Aug 1988
10-Month
18.25"
(463.55mm)
26.11"
(663.19mm)
-7.86"
(-199.64mm)
3rd Driest
Driest since:
1934
125th Wettest
Wettest since:
1993
Oct 1987–Aug 1988
11-Month
19.03"
(483.36mm)
28.42"
(721.87mm)
-9.39"
(-238.51mm)
2nd Driest
Driest since:
1934
126th Wettest
Wettest since:
1993
Sep 1987–Aug 1988
12-Month
21.61"
(548.89mm)
32.12"
(815.85mm)
-10.51"
(-266.96mm)
2nd Driest
Driest since:
1934
126th Wettest
Wettest since:
1993
Mar 1987–Aug 1988
18-Month
46.08"
(1,170.43mm)
53.43"
(1,357.12mm)
-7.35"
(-186.69mm)
13th Driest
Driest since:
1911
115th Wettest
Wettest since:
1993
Sep 1986–Aug 1988
24-Month
59.18"
(1,503.17mm)
64.28"
(1,632.71mm)
-5.10"
(-129.54mm)
27th Driest
Driest since:
1934
100th Wettest
Wettest since:
1993
Sep 1985–Aug 1988
36-Month
98.54"
(2,502.92mm)
96.39"
(2,448.31mm)
2.15"
(54.61mm)
75th Driest
Driest since:
1957
51st Wettest
Wettest since:
2010
Sep 1984–Aug 1988
48-Month
129.17"
(3,280.92mm)
128.37"
(3,260.60mm)
0.80"
(20.32mm)
62nd Driest
Driest since:
1936
63rd Wettest
Wettest since:
2010
Sep 1983–Aug 1988
60-Month
167.89"
(4,264.41mm)
160.37"
(4,073.40mm)
7.52"
(191.01mm)
85th Driest
Driest since:
1957
39th Wettest
Wettest since:
2011

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