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 1973

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 1973
1-Month
2.74"
(69.60mm)
3.84"
(97.54mm)
-1.10"
(-27.94mm)
33rd Driest
Driest since:
1984
96th Wettest
Wettest since:
2007
Jul–Aug 1973
2-Month
7.96"
(202.18mm)
7.70"
(195.58mm)
0.26"
(6.60mm)
77th Driest
Driest since:
1947
52nd Wettest
Wettest since:
1993
Jun–Aug 1973
3-Month
11.45"
(290.83mm)
12.33"
(313.18mm)
-0.88"
(-22.35mm)
51st Driest
Driest since:
1927
78th Wettest
Wettest since:
1993
May–Aug 1973
4-Month
17.49"
(444.25mm)
16.38"
(416.05mm)
1.11"
(28.20mm)
77th Driest
Driest since:
1936
52nd Wettest
Wettest since:
1993
Apr–Aug 1973
5-Month
22.12"
(561.85mm)
19.32"
(490.73mm)
2.80"
(71.12mm)
101st Driest
Driest since:
1936
28th Wettest
Wettest since:
1993
Mar–Aug 1973
6-Month
26.09"
(662.69mm)
21.28"
(540.51mm)
4.81"
(122.18mm)
115th Driest
Driest since:
1936
14th Wettest
Wettest since:
1993
Feb–Aug 1973
7-Month
27.42"
(696.47mm)
22.29"
(566.17mm)
5.13"
(130.30mm)
115th Driest
Driest since:
1988
14th Wettest
Wettest since:
1993
Ties: 2018
Jan–Aug 1973
8-Month
29.15"
(740.41mm)
23.27"
(591.06mm)
5.88"
(149.35mm)
118th Driest
Driest since:
1988
11th Wettest
Wettest since:
1993
Dec 1972–Aug 1973
9-Month
30.88"
(784.35mm)
24.37"
(619.00mm)
6.51"
(165.35mm)
116th Driest
Driest since:
1988
12th Wettest
Wettest since:
1993
Nov 1972–Aug 1973
10-Month
33.16"
(842.26mm)
26.11"
(663.19mm)
7.05"
(179.07mm)
120th Driest
Driest since:
1934
8th Wettest
Wettest since:
1993
Oct 1972–Aug 1973
11-Month
36.26"
(921.00mm)
28.42"
(721.87mm)
7.84"
(199.13mm)
119th Driest
Driest since:
1934
9th Wettest
Wettest since:
1993
Sep 1972–Aug 1973
12-Month
41.87"
(1,063.50mm)
32.12"
(815.85mm)
9.75"
(247.65mm)
122nd Driest
Driest since:
1934
6th Wettest
Wettest since:
1993
Mar 1972–Aug 1973
18-Month
65.02"
(1,651.51mm)
53.43"
(1,357.12mm)
11.59"
(294.39mm)
118th Driest
Driest since:
1911
10th Wettest
Wettest since:
1993
Sep 1971–Aug 1973
24-Month
77.18"
(1,960.37mm)
64.28"
(1,632.71mm)
12.90"
(327.66mm)
115th Driest
Driest since:
1934
12th Wettest
Wettest since:
1993
Sep 1970–Aug 1973
36-Month
108.68"
(2,760.47mm)
96.39"
(2,448.31mm)
12.29"
(312.16mm)
106th Driest
Driest since:
1957
20th Wettest
Wettest since:
2010
Sep 1969–Aug 1973
48-Month
136.91"
(3,477.51mm)
128.37"
(3,260.60mm)
8.54"
(216.91mm)
93rd Driest
Driest since:
1936
32nd Wettest
Wettest since:
2010
Sep 1968–Aug 1973
60-Month
175.41"
(4,455.41mm)
160.37"
(4,073.40mm)
15.04"
(382.01mm)
100th Driest
Driest since:
1957
24th Wettest
Wettest since:
2011

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