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 2018

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
April 2018
1-Month
0.50"
(12.70mm)
3.34"
(84.84mm)
-2.84"
(-72.14mm)
1st Driest
Driest since:
2018
128th Wettest
Wettest since:
1973
Mar–Apr 2018
2-Month
3.36"
(85.34mm)
5.70"
(144.78mm)
-2.34"
(-59.44mm)
16th Driest
Driest since:
1915
113th Wettest
Wettest since:
1973
Feb–Apr 2018
3-Month
5.77"
(146.56mm)
6.92"
(175.77mm)
-1.15"
(-29.21mm)
37th Driest
Driest since:
1958
92nd Wettest
Wettest since:
1973
Jan–Apr 2018
4-Month
6.29"
(159.77mm)
8.25"
(209.55mm)
-1.96"
(-49.78mm)
27th Driest
Driest since:
1956
102nd Wettest
Wettest since:
1973
Dec 2017–Apr 2018
5-Month
6.73"
(170.94mm)
9.74"
(247.40mm)
-3.01"
(-76.46mm)
9th Driest
Driest since:
1956
119th Wettest
Wettest since:
1973
Ties: 2003
Nov 2017–Apr 2018
6-Month
7.62"
(193.55mm)
11.86"
(301.24mm)
-4.24"
(-107.69mm)
6th Driest
Driest since:
1956
122nd Wettest
Wettest since:
1973
Oct 2017–Apr 2018
7-Month
12.39"
(314.71mm)
14.49"
(368.05mm)
-2.10"
(-53.34mm)
29th Driest
Driest since:
1956
99th Wettest
Wettest since:
1929
Sep 2017–Apr 2018
8-Month
14.83"
(376.68mm)
18.41"
(467.61mm)
-3.58"
(-90.93mm)
24th Driest
Driest since:
1956
104th Wettest
Wettest since:
1927
Aug 2017–Apr 2018
9-Month
17.30"
(439.42mm)
22.15"
(562.61mm)
-4.85"
(-123.19mm)
17th Driest
Driest since:
1956
111th Wettest
Wettest since:
2019
Jul 2017–Apr 2018
10-Month
20.06"
(509.52mm)
26.13"
(663.70mm)
-6.07"
(-154.18mm)
14th Driest
Driest since:
1902
114th Wettest
Wettest since:
1993
Jun 2017–Apr 2018
11-Month
21.89"
(556.01mm)
30.68"
(779.27mm)
-8.79"
(-223.26mm)
7th Driest
Driest since:
1902
121st Wettest
Wettest since:
1903
May 2017–Apr 2018
12-Month
25.48"
(647.19mm)
34.74"
(882.40mm)
-9.26"
(-235.21mm)
5th Driest
Driest since:
1902
123rd Wettest
Wettest since:
2011
Nov 2016–Apr 2018
18-Month
37.66"
(956.56mm)
46.62"
(1,184.15mm)
-8.96"
(-227.59mm)
11th Driest
Driest since:
1902
116th Wettest
Wettest since:
2011
May 2016–Apr 2018
24-Month
61.28"
(1,556.51mm)
69.50"
(1,765.30mm)
-8.22"
(-208.79mm)
20th Driest
Driest since:
1957
107th Wettest
Wettest since:
2011
May 2015–Apr 2018
36-Month
105.44"
(2,678.18mm)
104.16"
(2,645.66mm)
1.28"
(32.52mm)
65th Driest
Driest since:
1958
61st Wettest
Wettest since:
2011
May 2014–Apr 2018
48-Month
142.66"
(3,623.56mm)
138.69"
(3,522.73mm)
3.97"
(100.83mm)
71st Driest
Driest since:
1957
54th Wettest
Wettest since:
2011
May 2013–Apr 2018
60-Month
173.63"
(4,410.20mm)
173.27"
(4,401.06mm)
0.36"
(9.14mm)
61st Driest
Driest since:
1958
63rd Wettest
Wettest since:
2012

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