Divisional Rankings

Divisional 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, Climate Division 9. Southeast

Precipitation Rankings, May 1927

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
May 1927
1-Month
5.33"
(135.38mm)
4.04"
(102.62mm)
1.29"
(32.76mm)
95th Driest
Driest since:
1992
34th Wettest
Wettest since:
1996
Apr–May 1927
2-Month
11.37"
(288.80mm)
7.38"
(187.45mm)
3.99"
(101.35mm)
119th Driest
Driest since:
1956
10th Wettest
Wettest since:
2013
Mar–May 1927
3-Month
14.25"
(361.95mm)
9.74"
(247.40mm)
4.51"
(114.55mm)
121st Driest
Driest since:
1956
8th Wettest
Wettest to Date
1973
Feb–May 1927
4-Month
16.41"
(416.81mm)
10.97"
(278.64mm)
5.44"
(138.17mm)
121st Driest
Driest since:
1956
8th Wettest
Wettest to Date
1973
Jan–May 1927
5-Month
16.97"
(431.04mm)
12.29"
(312.17mm)
4.68"
(118.87mm)
119th Driest
Driest since:
1956
10th Wettest
Wettest to Date
1973
Ties: 2010
Dec 1926–May 1927
6-Month
17.79"
(451.87mm)
13.78"
(350.01mm)
4.01"
(101.86mm)
111th Driest
Driest since:
1956
17th Wettest
Wettest to Date
1973
Nov 1926–May 1927
7-Month
20.38"
(517.65mm)
15.90"
(403.86mm)
4.48"
(113.79mm)
112th Driest
Driest since:
1956
16th Wettest
Wettest to Date
1973
Oct 1926–May 1927
8-Month
22.32"
(566.93mm)
18.53"
(470.66mm)
3.79"
(96.27mm)
105th Driest
Driest since:
1956
23rd Wettest
Wettest since:
2019
Sep 1926–May 1927
9-Month
33.75"
(857.25mm)
22.45"
(570.23mm)
11.30"
(287.02mm)
125th Driest
Driest since:
1956
3rd Wettest
Wettest to Date
2019
Aug 1926–May 1927
10-Month
38.58"
(979.93mm)
26.20"
(665.48mm)
12.38"
(314.45mm)
125th Driest
Driest since:
1956
3rd Wettest
Wettest to Date
2019
Jul 1926–May 1927
11-Month
43.13"
(1,095.50mm)
30.18"
(766.57mm)
12.95"
(328.93mm)
123rd Driest
Driest since:
1956
5th Wettest
Wettest since:
2019
Jun 1926–May 1927
12-Month
50.17"
(1,274.32mm)
34.73"
(882.14mm)
15.44"
(392.18mm)
123rd Driest
Driest since:
1956
5th Wettest
Wettest since:
1903
Dec 1925–May 1927
18-Month
59.49"
(1,511.05mm)
48.55"
(1,233.17mm)
10.94"
(277.88mm)
114th Driest
Driest since:
1902
13th Wettest
Wettest since:
1974
Jun 1925–May 1927
24-Month
85.53"
(2,172.46mm)
69.46"
(1,764.28mm)
16.07"
(408.18mm)
118th Driest
Driest since:
1957
9th Wettest
Wettest since:
2011
Jun 1924–May 1927
36-Month
121.62"
(3,089.15mm)
104.12"
(2,644.65mm)
17.50"
(444.50mm)
113th Driest
Driest since:
1958
13th Wettest
Wettest to Date
2011
Jun 1923–May 1927
48-Month
150.47"
(3,821.94mm)
138.68"
(3,522.47mm)
11.79"
(299.47mm)
94th Driest
Driest since:
1957
31st Wettest
Wettest since:
2011
Jun 1922–May 1927
60-Month
178.51"
(4,534.15mm)
173.32"
(4,402.33mm)
5.19"
(131.82mm)
77th Driest
Driest since:
1958
47th Wettest
Wettest since:
2011

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