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, January 1939

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
January 1939
1-Month
0.89"
(22.61mm)
1.32"
(33.53mm)
-0.43"
(-10.92mm)
47th Driest
Driest since:
1981
82nd Wettest
Wettest since:
1916
Dec 1938–Jan 1939
2-Month
1.67"
(42.42mm)
2.82"
(71.63mm)
-1.15"
(-29.21mm)
21st Driest
Driest since:
1956
107th Wettest
Wettest since:
1907
Nov 1938–Jan 1939
3-Month
5.64"
(143.26mm)
4.93"
(125.22mm)
0.71"
(18.04mm)
84th Driest
Driest since:
1956
44th Wettest
Wettest since:
1993
Oct 1938–Jan 1939
4-Month
7.32"
(185.93mm)
7.56"
(192.02mm)
-0.24"
(-6.09mm)
61st Driest
Driest since:
1951
67th Wettest
Wettest since:
1932
Sep 1938–Jan 1939
5-Month
9.18"
(233.17mm)
11.48"
(291.59mm)
-2.30"
(-58.42mm)
41st Driest
Driest since:
1951
87th Wettest
Wettest since:
1962
Aug 1938–Jan 1939
6-Month
13.42"
(340.87mm)
15.23"
(386.84mm)
-1.81"
(-45.97mm)
47th Driest
Driest since:
1954
81st Wettest
Wettest since:
1971
Jul 1938–Jan 1939
7-Month
16.62"
(422.15mm)
19.21"
(487.93mm)
-2.59"
(-65.78mm)
36th Driest
Driest since:
1954
92nd Wettest
Wettest since:
1903
Ties: 1950
Jun 1938–Jan 1939
8-Month
22.20"
(563.88mm)
23.76"
(603.50mm)
-1.56"
(-39.62mm)
51st Driest
Driest since:
1954
77th Wettest
Wettest since:
1903
May 1938–Jan 1939
9-Month
27.09"
(688.09mm)
27.81"
(706.37mm)
-0.72"
(-18.28mm)
57th Driest
Driest since:
1954
71st Wettest
Wettest since:
2011
Apr 1938–Jan 1939
10-Month
30.84"
(783.34mm)
31.15"
(791.21mm)
-0.31"
(-7.87mm)
60th Driest
Driest since:
1954
68th Wettest
Wettest since:
2011
Mar 1938–Jan 1939
11-Month
34.60"
(878.84mm)
33.52"
(851.41mm)
1.08"
(27.43mm)
73rd Driest
Driest since:
1902
55th Wettest
Wettest since:
2011
Ties: 1920
Feb 1938–Jan 1939
12-Month
35.78"
(908.81mm)
34.76"
(882.90mm)
1.02"
(25.91mm)
72nd Driest
Driest since:
1902
56th Wettest
Wettest since:
2011
Aug 1937–Jan 1939
18-Month
46.27"
(1,175.26mm)
49.98"
(1,269.49mm)
-3.71"
(-94.23mm)
43rd Driest
Driest since:
1957
84th Wettest
Wettest since:
2011
Feb 1937–Jan 1939
24-Month
62.92"
(1,598.17mm)
69.50"
(1,765.30mm)
-6.58"
(-167.13mm)
25th Driest
Driest since:
1957
102nd Wettest
Wettest since:
2011
Feb 1936–Jan 1939
36-Month
90.31"
(2,293.87mm)
104.12"
(2,644.65mm)
-13.81"
(-350.78mm)
11th Driest
Driest since:
1990
115th Wettest
Wettest since:
2011
Feb 1935–Jan 1939
48-Month
130.87"
(3,324.10mm)
138.65"
(3,521.71mm)
-7.78"
(-197.61mm)
27th Driest
Driest since:
1957
98th Wettest
Wettest since:
2011
Feb 1934–Jan 1939
60-Month
159.84"
(4,059.94mm)
173.26"
(4,400.80mm)
-13.42"
(-340.86mm)
18th Driest
Driest since:
1957
106th Wettest
Wettest since:
2012

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