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 1990

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1990
1-Month
2.31"
(58.67mm)
3.34"
(84.84mm)
-1.03"
(-26.17mm)
38th Driest
Driest since:
2018
91st Wettest
Wettest since:
1973
Mar–Apr 1990
2-Month
7.46"
(189.48mm)
5.70"
(144.78mm)
1.76"
(44.70mm)
103rd Driest
Driest since:
1915
26th Wettest
Wettest since:
1973
Ties: 1995
Feb–Apr 1990
3-Month
9.12"
(231.65mm)
6.92"
(175.77mm)
2.20"
(55.88mm)
110th Driest
Driest since:
1958
19th Wettest
Wettest since:
1973
Jan–Apr 1990
4-Month
10.48"
(266.19mm)
8.25"
(209.55mm)
2.23"
(56.64mm)
105th Driest
Driest since:
1956
24th Wettest
Wettest since:
1973
Ties: 1916
Dec 1989–Apr 1990
5-Month
11.09"
(281.69mm)
9.74"
(247.40mm)
1.35"
(34.29mm)
86th Driest
Driest since:
1956
42nd Wettest
Wettest since:
1973
Nov 1989–Apr 1990
6-Month
11.20"
(284.48mm)
11.86"
(301.24mm)
-0.66"
(-16.76mm)
51st Driest
Driest since:
1956
77th Wettest
Wettest since:
1973
Oct 1989–Apr 1990
7-Month
13.08"
(332.23mm)
14.49"
(368.05mm)
-1.41"
(-35.82mm)
43rd Driest
Driest since:
1956
85th Wettest
Wettest since:
1929
Sep 1989–Apr 1990
8-Month
18.17"
(461.52mm)
18.41"
(467.61mm)
-0.24"
(-6.09mm)
63rd Driest
Driest since:
1956
65th Wettest
Wettest since:
1927
Aug 1989–Apr 1990
9-Month
22.91"
(581.91mm)
22.15"
(562.61mm)
0.76"
(19.30mm)
76th Driest
Driest since:
1956
52nd Wettest
Wettest since:
2019
Jul 1989–Apr 1990
10-Month
26.16"
(664.46mm)
26.13"
(663.70mm)
0.03"
(0.76mm)
72nd Driest
Driest since:
1902
56th Wettest
Wettest since:
1993
Jun 1989–Apr 1990
11-Month
29.96"
(760.98mm)
30.68"
(779.27mm)
-0.72"
(-18.29mm)
56th Driest
Driest since:
1902
72nd Wettest
Wettest since:
1903
May 1989–Apr 1990
12-Month
33.37"
(847.60mm)
34.74"
(882.40mm)
-1.37"
(-34.80mm)
52nd Driest
Driest since:
1902
76th Wettest
Wettest since:
2011
Nov 1988–Apr 1990
18-Month
42.59"
(1,081.79mm)
46.62"
(1,184.15mm)
-4.03"
(-102.36mm)
36th Driest
Driest since:
1902
91st Wettest
Wettest since:
2011
May 1988–Apr 1990
24-Month
54.84"
(1,392.94mm)
69.50"
(1,765.30mm)
-14.66"
(-372.36mm)
5th Driest
Driest since:
1957
122nd Wettest
Wettest since:
2011
May 1987–Apr 1990
36-Month
82.91"
(2,105.91mm)
104.16"
(2,645.66mm)
-21.25"
(-539.75mm)
5th Driest
Driest since:
1958
121st Wettest
Wettest since:
2011
May 1986–Apr 1990
48-Month
126.11"
(3,203.19mm)
138.69"
(3,522.73mm)
-12.58"
(-319.54mm)
15th Driest
Driest since:
1957
110th Wettest
Wettest since:
2011
May 1985–Apr 1990
60-Month
161.12"
(4,092.45mm)
173.27"
(4,401.06mm)
-12.15"
(-308.61mm)
17th Driest
Driest since:
1958
107th Wettest
Wettest since:
2012

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