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 1988

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
May 1988
1-Month
1.89"
(48.01mm)
4.04"
(102.62mm)
-2.15"
(-54.61mm)
12th Driest
Driest since:
1992
117th Wettest
Wettest since:
1996
Apr–May 1988
2-Month
3.05"
(77.47mm)
7.38"
(187.45mm)
-4.33"
(-109.98mm)
2nd Driest
Driest since:
1956
127th Wettest
Wettest since:
2013
Mar–May 1988
3-Month
4.37"
(111.00mm)
9.74"
(247.40mm)
-5.37"
(-136.40mm)
3rd Driest
Driest since:
1956
126th Wettest
Wettest since:
1973
Feb–May 1988
4-Month
5.04"
(128.02mm)
10.97"
(278.64mm)
-5.93"
(-150.62mm)
3rd Driest
Driest since:
1956
126th Wettest
Wettest since:
1973
Jan–May 1988
5-Month
6.08"
(154.43mm)
12.29"
(312.17mm)
-6.21"
(-157.74mm)
3rd Driest
Driest since:
1956
126th Wettest
Wettest since:
1973
Dec 1987–May 1988
6-Month
8.87"
(225.30mm)
13.78"
(350.01mm)
-4.91"
(-124.71mm)
5th Driest
Driest since:
1956
123rd Wettest
Wettest since:
1973
Nov 1987–May 1988
7-Month
12.76"
(324.10mm)
15.90"
(403.86mm)
-3.14"
(-79.76mm)
30th Driest
Driest since:
1956
98th Wettest
Wettest since:
1973
Oct 1987–May 1988
8-Month
13.54"
(343.92mm)
18.53"
(470.66mm)
-4.99"
(-126.74mm)
10th Driest
Driest since:
1956
118th Wettest
Wettest since:
2019
Sep 1987–May 1988
9-Month
16.03"
(407.16mm)
22.45"
(570.23mm)
-6.42"
(-163.07mm)
11th Driest
Driest since:
1956
117th Wettest
Wettest since:
2019
Aug 1987–May 1988
10-Month
22.30"
(566.42mm)
26.20"
(665.48mm)
-3.90"
(-99.06mm)
30th Driest
Driest since:
1956
98th Wettest
Wettest since:
2019
Jul 1987–May 1988
11-Month
24.66"
(626.36mm)
30.18"
(766.57mm)
-5.52"
(-140.21mm)
21st Driest
Driest since:
1956
107th Wettest
Wettest since:
2019
Jun 1987–May 1988
12-Month
27.37"
(695.20mm)
34.73"
(882.14mm)
-7.36"
(-186.94mm)
14th Driest
Driest since:
1956
114th Wettest
Wettest since:
1903
Dec 1986–May 1988
18-Month
37.40"
(949.96mm)
48.55"
(1,233.17mm)
-11.15"
(-283.21mm)
7th Driest
Driest since:
1902
120th Wettest
Wettest since:
1974
Jun 1986–May 1988
24-Month
65.29"
(1,658.37mm)
69.46"
(1,764.28mm)
-4.17"
(-105.91mm)
38th Driest
Driest since:
1957
89th Wettest
Wettest since:
2011
Jun 1985–May 1988
36-Month
104.70"
(2,659.38mm)
104.12"
(2,644.65mm)
0.58"
(14.73mm)
65th Driest
Driest since:
1958
61st Wettest
Wettest since:
2011
Jun 1984–May 1988
48-Month
142.43"
(3,617.72mm)
138.68"
(3,522.47mm)
3.75"
(95.25mm)
74th Driest
Driest since:
1957
51st Wettest
Wettest since:
2011
Jun 1983–May 1988
60-Month
178.44"
(4,532.38mm)
173.32"
(4,402.33mm)
5.12"
(130.05mm)
75th Driest
Driest since:
1958
49th Wettest
Wettest since:
2011

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