Statewide Rankings

Statewide 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

Precipitation Rankings, January 1923

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 1923
1-Month
0.81"
(20.57mm)
0.98"
(24.89mm)
-0.17"
(-4.32mm)
55th Driest
Driest since:
1981
74th Wettest
Wettest since:
1949
Ties: 1913, 1940
Dec 1922–Jan 1923
2-Month
1.16"
(29.46mm)
2.08"
(52.83mm)
-0.92"
(-23.37mm)
16th Driest
Driest since:
2003
112th Wettest
Wettest since:
2016
Nov 1922–Jan 1923
3-Month
4.77"
(121.16mm)
3.82"
(97.03mm)
0.95"
(24.13mm)
97th Driest
Driest since:
2003
31st Wettest
Wettest since:
1932
Ties: 2007
Oct 1922–Jan 1923
4-Month
6.50"
(165.10mm)
6.13"
(155.70mm)
0.37"
(9.40mm)
77th Driest
Driest since:
1911
51st Wettest
Wettest since:
1932
Sep 1922–Jan 1923
5-Month
8.58"
(217.93mm)
9.83"
(249.68mm)
-1.25"
(-31.75mm)
48th Driest
Driest since:
1977
80th Wettest
Wettest since:
1932
Aug 1922–Jan 1923
6-Month
11.43"
(290.32mm)
13.69"
(347.73mm)
-2.26"
(-57.41mm)
32nd Driest
Driest since:
1977
96th Wettest
Wettest since:
2019
Ties: 1896
Jul 1922–Jan 1923
7-Month
17.81"
(452.37mm)
17.57"
(446.28mm)
0.24"
(6.09mm)
71st Driest
Driest since:
1977
57th Wettest
Wettest since:
2019
Jun 1922–Jan 1923
8-Month
19.58"
(497.33mm)
22.18"
(563.37mm)
-2.60"
(-66.04mm)
34th Driest
Driest since:
1977
94th Wettest
Wettest since:
2019
May 1922–Jan 1923
9-Month
23.05"
(585.47mm)
26.22"
(665.99mm)
-3.17"
(-80.52mm)
29th Driest
Driest since:
1977
99th Wettest
Wettest since:
1994
Apr 1922–Jan 1923
10-Month
26.06"
(661.92mm)
29.17"
(740.92mm)
-3.11"
(-79.00mm)
33rd Driest
Driest since:
1911
95th Wettest
Wettest since:
1994
Mar 1922–Jan 1923
11-Month
27.96"
(710.18mm)
31.14"
(790.96mm)
-3.18"
(-80.78mm)
35th Driest
Driest since:
1911
93rd Wettest
Wettest since:
1994
Feb 1922–Jan 1923
12-Month
29.54"
(750.32mm)
32.15"
(816.61mm)
-2.61"
(-66.29mm)
42nd Driest
Driest since:
1911
86th Wettest
Wettest since:
1994
Aug 1921–Jan 1923
18-Month
45.67"
(1,160.02mm)
45.86"
(1,164.84mm)
-0.19"
(-4.82mm)
63rd Driest
Driest since:
1957
64th Wettest
Wettest since:
2020
Feb 1921–Jan 1923
24-Month
61.90"
(1,572.26mm)
64.28"
(1,632.71mm)
-2.38"
(-60.45mm)
47th Driest
Driest since:
1990
80th Wettest
Wettest since:
2020
Feb 1920–Jan 1923
36-Month
93.01"
(2,362.45mm)
96.29"
(2,445.77mm)
-3.28"
(-83.32mm)
42nd Driest
Driest since:
1958
84th Wettest
Wettest since:
2011
Feb 1919–Jan 1923
48-Month
129.60"
(3,291.84mm)
128.27"
(3,258.06mm)
1.33"
(33.78mm)
66th Driest
Driest since:
1959
59th Wettest
Wettest since:
2011
Feb 1918–Jan 1923
60-Month
161.40"
(4,099.56mm)
160.30"
(4,071.62mm)
1.10"
(27.94mm)
64th Driest
Driest since:
1957
60th Wettest
Wettest since:
2011

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