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 1956

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 1956
1-Month
0.45"
(11.43mm)
0.98"
(24.89mm)
-0.53"
(-13.46mm)
20th Driest
Driest since:
1981
109th Wettest
Wettest since:
1949
Ties: 1908
Dec 1955–Jan 1956
2-Month
0.94"
(23.88mm)
2.08"
(52.83mm)
-1.14"
(-28.95mm)
6th Driest
Driest since:
2003
122nd Wettest
Wettest since:
2016
Nov 1955–Jan 1956
3-Month
1.18"
(29.97mm)
3.82"
(97.03mm)
-2.64"
(-67.06mm)
3rd Driest
Driest since:
2003
125th Wettest
Wettest since:
1932
Oct 1955–Jan 1956
4-Month
2.66"
(67.56mm)
6.13"
(155.70mm)
-3.47"
(-88.14mm)
3rd Driest
Driest since:
1911
125th Wettest
Wettest since:
1932
Sep 1955–Jan 1956
5-Month
5.71"
(145.03mm)
9.83"
(249.68mm)
-4.12"
(-104.65mm)
7th Driest
Driest since:
1977
121st Wettest
Wettest since:
1932
Aug 1955–Jan 1956
6-Month
7.59"
(192.79mm)
13.69"
(347.73mm)
-6.10"
(-154.94mm)
3rd Driest
Driest since:
1977
125th Wettest
Wettest since:
2019
Jul 1955–Jan 1956
7-Month
11.05"
(280.67mm)
17.57"
(446.28mm)
-6.52"
(-165.61mm)
5th Driest
Driest since:
1977
123rd Wettest
Wettest since:
2019
Jun 1955–Jan 1956
8-Month
14.04"
(356.62mm)
22.18"
(563.37mm)
-8.14"
(-206.75mm)
2nd Driest
Driest since:
1977
126th Wettest
Wettest since:
2019
May 1955–Jan 1956
9-Month
16.75"
(425.45mm)
26.22"
(665.99mm)
-9.47"
(-240.54mm)
2nd Driest
Driest since:
1977
126th Wettest
Wettest since:
1994
Apr 1955–Jan 1956
10-Month
20.25"
(514.35mm)
29.17"
(740.92mm)
-8.92"
(-226.57mm)
3rd Driest
Driest since:
1911
125th Wettest
Wettest since:
1994
Mar 1955–Jan 1956
11-Month
21.22"
(538.99mm)
31.14"
(790.96mm)
-9.92"
(-251.97mm)
3rd Driest
Driest since:
1911
125th Wettest
Wettest since:
1994
Feb 1955–Jan 1956
12-Month
22.52"
(572.01mm)
32.15"
(816.61mm)
-9.63"
(-244.60mm)
3rd Driest
Driest since:
1911
125th Wettest
Wettest since:
1994
Aug 1954–Jan 1956
18-Month
37.81"
(960.37mm)
45.86"
(1,164.84mm)
-8.05"
(-204.47mm)
11th Driest
Driest since:
1957
116th Wettest
Wettest since:
2020
Feb 1954–Jan 1956
24-Month
57.36"
(1,456.94mm)
64.28"
(1,632.71mm)
-6.92"
(-175.77mm)
18th Driest
Driest since:
1990
109th Wettest
Wettest since:
2020
Feb 1953–Jan 1956
36-Month
82.65"
(2,099.31mm)
96.29"
(2,445.77mm)
-13.64"
(-346.46mm)
7th Driest
Driest since:
1958
119th Wettest
Wettest since:
2011
Feb 1952–Jan 1956
48-Month
111.59"
(2,834.39mm)
128.27"
(3,258.06mm)
-16.68"
(-423.67mm)
5th Driest
Driest since:
1959
120th Wettest
Wettest since:
2011
Feb 1951–Jan 1956
60-Month
154.26"
(3,918.20mm)
160.30"
(4,071.62mm)
-6.04"
(-153.42mm)
29th Driest
Driest since:
1957
95th Wettest
Wettest since:
2011

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