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 1958

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 1958
1-Month
0.70"
(17.78mm)
0.98"
(24.89mm)
-0.28"
(-7.11mm)
43rd Driest
Driest since:
1981
86th Wettest
Wettest since:
1949
Ties: 1983
Dec 1957–Jan 1958
2-Month
1.88"
(47.75mm)
2.08"
(52.83mm)
-0.20"
(-5.08mm)
58th Driest
Driest since:
2003
70th Wettest
Wettest since:
2016
Ties: 1922
Nov 1957–Jan 1958
3-Month
4.38"
(111.25mm)
3.82"
(97.03mm)
0.56"
(14.22mm)
83rd Driest
Driest since:
2003
45th Wettest
Wettest since:
1932
Oct 1957–Jan 1958
4-Month
7.13"
(181.10mm)
6.13"
(155.70mm)
1.00"
(25.40mm)
90th Driest
Driest since:
1911
38th Wettest
Wettest since:
1932
Ties: 1909
Sep 1957–Jan 1958
5-Month
9.83"
(249.68mm)
9.83"
(249.68mm)
0.00"
(0.00mm)
73rd Driest
Driest since:
1977
55th Wettest
Wettest since:
1932
Aug 1957–Jan 1958
6-Month
13.58"
(344.93mm)
13.69"
(347.73mm)
-0.11"
(-2.80mm)
66th Driest
Driest since:
1977
62nd Wettest
Wettest since:
2019
Jul 1957–Jan 1958
7-Month
17.21"
(437.13mm)
17.57"
(446.28mm)
-0.36"
(-9.15mm)
67th Driest
Driest since:
1977
61st Wettest
Wettest since:
2019
Jun 1957–Jan 1958
8-Month
21.98"
(558.29mm)
22.18"
(563.37mm)
-0.20"
(-5.08mm)
61st Driest
Driest since:
1977
67th Wettest
Wettest since:
2019
May 1957–Jan 1958
9-Month
26.92"
(683.77mm)
26.22"
(665.99mm)
0.70"
(17.78mm)
72nd Driest
Driest since:
1977
56th Wettest
Wettest since:
1994
Apr 1957–Jan 1958
10-Month
29.44"
(747.78mm)
29.17"
(740.92mm)
0.27"
(6.86mm)
63rd Driest
Driest since:
1911
65th Wettest
Wettest since:
1994
Mar 1957–Jan 1958
11-Month
31.32"
(795.53mm)
31.14"
(790.96mm)
0.18"
(4.57mm)
65th Driest
Driest since:
1911
63rd Wettest
Wettest since:
1994
Feb 1957–Jan 1958
12-Month
31.66"
(804.16mm)
32.15"
(816.61mm)
-0.49"
(-12.45mm)
61st Driest
Driest since:
1911
67th Wettest
Wettest since:
1994
Aug 1956–Jan 1958
18-Month
42.20"
(1,071.88mm)
45.86"
(1,164.84mm)
-3.66"
(-92.96mm)
40th Driest
Driest since:
1957
87th Wettest
Wettest since:
2020
Feb 1956–Jan 1958
24-Month
56.05"
(1,423.67mm)
64.28"
(1,632.71mm)
-8.23"
(-209.04mm)
16th Driest
Driest since:
1990
111th Wettest
Wettest since:
2020
Feb 1955–Jan 1958
36-Month
78.57"
(1,995.68mm)
96.29"
(2,445.77mm)
-17.72"
(-450.09mm)
1st Driest
Driest since:
1958
125th Wettest
Wettest since:
2011
Feb 1954–Jan 1958
48-Month
113.41"
(2,880.61mm)
128.27"
(3,258.06mm)
-14.86"
(-377.45mm)
8th Driest
Driest since:
1959
117th Wettest
Wettest since:
2011
Feb 1953–Jan 1958
60-Month
138.70"
(3,522.98mm)
160.30"
(4,071.62mm)
-21.60"
(-548.64mm)
3rd Driest
Driest since:
1957
121st Wettest
Wettest since:
2011

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