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 1972

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 1972
1-Month
4.32"
(109.73mm)
3.84"
(97.54mm)
0.48"
(12.19mm)
86th Driest
Driest since:
1984
43rd Wettest
Wettest since:
2007
Ties: 1990
Jul–Aug 1972
2-Month
9.99"
(253.75mm)
7.70"
(195.58mm)
2.29"
(58.17mm)
103rd Driest
Driest since:
1947
26th Wettest
Wettest since:
1993
Jun–Aug 1972
3-Month
13.69"
(347.73mm)
12.33"
(313.18mm)
1.36"
(34.55mm)
93rd Driest
Driest since:
1927
36th Wettest
Wettest since:
1993
May–Aug 1972
4-Month
18.26"
(463.80mm)
16.38"
(416.05mm)
1.88"
(47.75mm)
89th Driest
Driest since:
1936
40th Wettest
Wettest since:
1993
Apr–Aug 1972
5-Month
21.84"
(554.74mm)
19.32"
(490.73mm)
2.52"
(64.01mm)
97th Driest
Driest since:
1936
32nd Wettest
Wettest since:
1993
Mar–Aug 1972
6-Month
23.15"
(588.01mm)
21.28"
(540.51mm)
1.87"
(47.50mm)
84th Driest
Driest since:
1936
45th Wettest
Wettest since:
1993
Feb–Aug 1972
7-Month
23.86"
(606.04mm)
22.29"
(566.17mm)
1.57"
(39.87mm)
80th Driest
Driest since:
1988
49th Wettest
Wettest since:
1993
Jan–Aug 1972
8-Month
24.33"
(617.98mm)
23.27"
(591.06mm)
1.06"
(26.92mm)
75th Driest
Driest since:
1988
54th Wettest
Wettest since:
1993
Dec 1971–Aug 1972
9-Month
26.20"
(665.48mm)
24.37"
(619.00mm)
1.83"
(46.48mm)
80th Driest
Driest since:
1988
48th Wettest
Wettest since:
1993
Nov 1971–Aug 1972
10-Month
29.28"
(743.71mm)
26.11"
(663.19mm)
3.17"
(80.52mm)
92nd Driest
Driest since:
1934
36th Wettest
Wettest since:
1993
Oct 1971–Aug 1972
11-Month
32.89"
(835.41mm)
28.42"
(721.87mm)
4.47"
(113.54mm)
99th Driest
Driest since:
1934
29th Wettest
Wettest since:
1993
Sep 1971–Aug 1972
12-Month
35.31"
(896.87mm)
32.12"
(815.85mm)
3.19"
(81.02mm)
93rd Driest
Driest since:
1934
35th Wettest
Wettest since:
1993
Mar 1971–Aug 1972
18-Month
50.33"
(1,278.38mm)
53.43"
(1,357.12mm)
-3.10"
(-78.74mm)
44th Driest
Driest since:
1911
84th Wettest
Wettest since:
1993
Sep 1970–Aug 1972
24-Month
66.81"
(1,696.97mm)
64.28"
(1,632.71mm)
2.53"
(64.26mm)
72nd Driest
Driest since:
1934
55th Wettest
Wettest since:
1993
Sep 1969–Aug 1972
36-Month
95.04"
(2,414.02mm)
96.39"
(2,448.31mm)
-1.35"
(-34.29mm)
50th Driest
Driest since:
1957
76th Wettest
Wettest since:
2010
Sep 1968–Aug 1972
48-Month
133.54"
(3,391.92mm)
128.37"
(3,260.60mm)
5.17"
(131.32mm)
84th Driest
Driest since:
1936
41st Wettest
Wettest since:
2010
Sep 1967–Aug 1972
60-Month
162.28"
(4,121.91mm)
160.37"
(4,073.40mm)
1.91"
(48.51mm)
66th Driest
Driest since:
1957
58th Wettest
Wettest since:
2011

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