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, April 2021

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
April 2021
1-Month		3.12"
(79.25mm)		3.34"
(84.84mm)		-0.22"
(-5.59mm)		58th Driest
Driest since:
2018
71st Wettest
Wettest since:
1973
Mar–Apr 2021
2-Month		6.09"
(154.69mm)		5.70"
(144.78mm)		0.39"
(9.91mm)		75th Driest
Driest since:
1915
54th Wettest
Wettest since:
1973
Feb–Apr 2021
3-Month		7.00"
(177.80mm)		6.92"
(175.77mm)		0.08"
(2.03mm)		65th Driest
Driest since:
1958
64th Wettest
Wettest since:
1973
Jan–Apr 2021
4-Month		9.05"
(229.87mm)		8.25"
(209.55mm)		0.80"
(20.32mm)		81st Driest
Driest since:
1956
48th Wettest
Wettest since:
1973
Dec 2020–Apr 2021
5-Month		11.19"
(284.23mm)		9.74"
(247.40mm)		1.45"
(36.83mm)		88th Driest
Driest since:
1956
40th Wettest
Wettest since:
1973
Nov 2020–Apr 2021
6-Month		14.14"
(359.16mm)		11.86"
(301.24mm)		2.28"
(57.92mm)		98th Driest
Driest since:
1956
30th Wettest
Wettest since:
1973
Oct 2020–Apr 2021
7-Month		16.00"
(406.40mm)		14.49"
(368.05mm)		1.51"
(38.35mm)		88th Driest
Driest since:
1956
40th Wettest
Wettest since:
1929
Sep 2020–Apr 2021
8-Month		21.03"
(534.16mm)		18.41"
(467.61mm)		2.62"
(66.55mm)		94th Driest
Driest since:
1956
34th Wettest
Wettest since:
1927
Aug 2020–Apr 2021
9-Month		21.46"
(545.08mm)		22.15"
(562.61mm)		-0.69"
(-17.53mm)		59th Driest
Driest since:
1956
69th Wettest
Wettest since:
2019
Jul 2020–Apr 2021
10-Month		25.05"
(636.27mm)		26.13"
(663.70mm)		-1.08"
(-27.43mm)		54th Driest
Driest since:
1902
74th Wettest
Wettest since:
1993
Jun 2020–Apr 2021
11-Month		31.12"
(790.45mm)		30.68"
(779.27mm)		0.44"
(11.18mm)		74th Driest
Driest since:
1902
54th Wettest
Wettest since:
1903
May 2020–Apr 2021
12-Month		36.12"
(917.45mm)		34.74"
(882.40mm)		1.38"
(35.05mm)		71st Driest
Driest since:
1902
57th Wettest
Wettest since:
2011
Nov 2019–Apr 2021
18-Month		46.48"
(1,180.59mm)		46.62"
(1,184.15mm)		-0.14"
(-3.56mm)		58th Driest
Driest since:
1902
69th Wettest
Wettest since:
2011
Ties: 2012
May 2019–Apr 2021
24-Month		77.56"
(1,970.02mm)		69.50"
(1,765.30mm)		8.06"
(204.72mm)		99th Driest
Driest since:
1957
28th Wettest
Wettest since:
2011
May 2018–Apr 2021
36-Month		122.14"
(3,102.36mm)		104.16"
(2,645.66mm)		17.98"
(456.70mm)		116th Driest
Driest since:
1958
10th Wettest
Wettest since:
2011
May 2017–Apr 2021
48-Month		147.62"
(3,749.55mm)		138.69"
(3,522.73mm)		8.93"
(226.82mm)		88th Driest
Driest since:
1957
37th Wettest
Wettest since:
2011
May 2016–Apr 2021
60-Month		183.42"
(4,658.87mm)		173.27"
(4,401.06mm)		10.15"
(257.81mm)		84th Driest
Driest since:
1958
40th Wettest
Wettest since:
2012

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