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 1957

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 1957
1-Month
4.78"
(121.41mm)
3.34"
(84.84mm)
1.44"
(36.57mm)
107th Driest
Driest since:
2018
22nd Wettest
Wettest since:
1973
Mar–Apr 1957
2-Month
7.30"
(185.42mm)
5.70"
(144.78mm)
1.60"
(40.64mm)
100th Driest
Driest since:
1915
29th Wettest
Wettest since:
1973
Ties: 1959
Feb–Apr 1957
3-Month
7.89"
(200.41mm)
6.92"
(175.77mm)
0.97"
(24.64mm)
89th Driest
Driest since:
1958
40th Wettest
Wettest since:
1973
Jan–Apr 1957
4-Month
8.91"
(226.31mm)
8.25"
(209.55mm)
0.66"
(16.76mm)
79th Driest
Driest since:
1956
50th Wettest
Wettest since:
1973
Ties: 1905
Dec 1956–Apr 1957
5-Month
9.83"
(249.68mm)
9.74"
(247.40mm)
0.09"
(2.28mm)
62nd Driest
Driest since:
1956
66th Wettest
Wettest since:
1973
Nov 1956–Apr 1957
6-Month
10.97"
(278.64mm)
11.86"
(301.24mm)
-0.89"
(-22.60mm)
47th Driest
Driest since:
1956
81st Wettest
Wettest since:
1973
Oct 1956–Apr 1957
7-Month
11.81"
(299.97mm)
14.49"
(368.05mm)
-2.68"
(-68.08mm)
22nd Driest
Driest since:
1956
106th Wettest
Wettest since:
1929
Sep 1956–Apr 1957
8-Month
12.51"
(317.75mm)
18.41"
(467.61mm)
-5.90"
(-149.86mm)
11th Driest
Driest since:
1956
117th Wettest
Wettest since:
1927
Aug 1956–Apr 1957
9-Month
17.96"
(456.18mm)
22.15"
(562.61mm)
-4.19"
(-106.43mm)
21st Driest
Driest since:
1956
107th Wettest
Wettest since:
2019
Jul 1956–Apr 1957
10-Month
22.24"
(564.90mm)
26.13"
(663.70mm)
-3.89"
(-98.80mm)
27th Driest
Driest since:
1902
101st Wettest
Wettest since:
1993
Jun 1956–Apr 1957
11-Month
24.64"
(625.86mm)
30.68"
(779.27mm)
-6.04"
(-153.41mm)
19th Driest
Driest since:
1902
109th Wettest
Wettest since:
1903
May 1956–Apr 1957
12-Month
26.18"
(664.97mm)
34.74"
(882.40mm)
-8.56"
(-217.43mm)
7th Driest
Driest since:
1902
121st Wettest
Wettest since:
2011
Nov 1955–Apr 1957
18-Month
30.18"
(766.57mm)
46.62"
(1,184.15mm)
-16.44"
(-417.58mm)
2nd Driest
Driest since:
1902
125th Wettest
Wettest since:
2011
May 1955–Apr 1957
24-Month
48.18"
(1,223.77mm)
69.50"
(1,765.30mm)
-21.32"
(-541.53mm)
1st Driest
Driest since:
1957
126th Wettest
Wettest since:
2011
May 1954–Apr 1957
36-Month
82.44"
(2,093.98mm)
104.16"
(2,645.66mm)
-21.72"
(-551.68mm)
4th Driest
Driest since:
1958
122nd Wettest
Wettest since:
2011
May 1953–Apr 1957
48-Month
104.58"
(2,656.33mm)
138.69"
(3,522.73mm)
-34.11"
(-866.40mm)
1st Driest
Driest since:
1957
124th Wettest
Wettest since:
2011
May 1952–Apr 1957
60-Month
138.74"
(3,524.00mm)
173.27"
(4,401.06mm)
-34.53"
(-877.06mm)
2nd Driest
Driest since:
1958
122nd Wettest
Wettest since:
2012

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