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 1975

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 1975
1-Month
1.22"
(30.99mm)
1.32"
(33.53mm)
-0.10"
(-2.54mm)
76th Driest
Driest since:
1981
53rd Wettest
Wettest since:
1916
Ties: 1948
Dec 1974–Jan 1975
2-Month
2.71"
(68.83mm)
2.82"
(71.63mm)
-0.11"
(-2.80mm)
60th Driest
Driest since:
1956
68th Wettest
Wettest since:
1907
Ties: 1942, 2017
Nov 1974–Jan 1975
3-Month
5.09"
(129.29mm)
4.93"
(125.22mm)
0.16"
(4.07mm)
69th Driest
Driest since:
1956
59th Wettest
Wettest since:
1993
Ties: 1897, 1996
Oct 1974–Jan 1975
4-Month
7.66"
(194.56mm)
7.56"
(192.02mm)
0.10"
(2.54mm)
68th Driest
Driest since:
1951
60th Wettest
Wettest since:
1932
Sep 1974–Jan 1975
5-Month
9.60"
(243.84mm)
11.48"
(291.59mm)
-1.88"
(-47.75mm)
47th Driest
Driest since:
1951
81st Wettest
Wettest since:
1962
Aug 1974–Jan 1975
6-Month
14.46"
(367.28mm)
15.23"
(386.84mm)
-0.77"
(-19.56mm)
55th Driest
Driest since:
1954
73rd Wettest
Wettest since:
1971
Ties: 2021
Jul 1974–Jan 1975
7-Month
18.59"
(472.19mm)
19.21"
(487.93mm)
-0.62"
(-15.74mm)
64th Driest
Driest since:
1954
64th Wettest
Wettest since:
1903
Jun 1974–Jan 1975
8-Month
23.57"
(598.68mm)
23.76"
(603.50mm)
-0.19"
(-4.82mm)
70th Driest
Driest since:
1954
58th Wettest
Wettest since:
1903
May 1974–Jan 1975
9-Month
31.51"
(800.35mm)
27.81"
(706.37mm)
3.70"
(93.98mm)
93rd Driest
Driest since:
1954
35th Wettest
Wettest since:
2011
Apr 1974–Jan 1975
10-Month
33.98"
(863.09mm)
31.15"
(791.21mm)
2.83"
(71.88mm)
85th Driest
Driest since:
1954
43rd Wettest
Wettest since:
2011
Mar 1974–Jan 1975
11-Month
36.83"
(935.48mm)
33.52"
(851.41mm)
3.31"
(84.07mm)
88th Driest
Driest since:
1902
40th Wettest
Wettest since:
2011
Feb 1974–Jan 1975
12-Month
37.69"
(957.33mm)
34.76"
(882.90mm)
2.93"
(74.43mm)
87th Driest
Driest since:
1902
41st Wettest
Wettest since:
2011
Aug 1973–Jan 1975
18-Month
58.33"
(1,481.58mm)
49.98"
(1,269.49mm)
8.35"
(212.09mm)
105th Driest
Driest since:
1957
22nd Wettest
Wettest since:
2011
Feb 1973–Jan 1975
24-Month
90.60"
(2,301.24mm)
69.50"
(1,765.30mm)
21.10"
(535.94mm)
122nd Driest
Driest since:
1957
5th Wettest
Wettest to Date
2011
Feb 1972–Jan 1975
36-Month
126.69"
(3,217.93mm)
104.12"
(2,644.65mm)
22.57"
(573.28mm)
122nd Driest
Driest since:
1990
4th Wettest
Wettest to Date
2011
Feb 1971–Jan 1975
48-Month
155.99"
(3,962.15mm)
138.65"
(3,521.71mm)
17.34"
(440.44mm)
112th Driest
Driest since:
1957
13th Wettest
Wettest since:
2011
Feb 1970–Jan 1975
60-Month
200.60"
(5,095.24mm)
173.26"
(4,400.80mm)
27.34"
(694.44mm)
118th Driest
Driest since:
1957
6th Wettest
Wettest to Date
2012

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