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, December 1957

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1957
1-Month
1.18"
(29.97mm)
1.11"
(28.19mm)
0.07"
(1.78mm)
75th Driest
Driest since:
2002
53rd Wettest
Wettest since:
2015
Ties: 1920, 1952
Nov–Dec 1957
2-Month
3.68"
(93.47mm)
2.87"
(72.90mm)
0.81"
(20.57mm)
98th Driest
Driest since:
1976
30th Wettest
Wettest since:
2015
Ties: 1941
Oct–Dec 1957
3-Month
6.43"
(163.32mm)
5.16"
(131.06mm)
1.27"
(32.26mm)
94th Driest
Driest since:
1910
34th Wettest
Wettest since:
1931
Sep–Dec 1957
4-Month
9.13"
(231.90mm)
8.83"
(224.28mm)
0.30"
(7.62mm)
75th Driest
Driest since:
1939, 1976
53rd Wettest
Wettest since:
1931
Aug–Dec 1957
5-Month
12.88"
(327.15mm)
12.67"
(321.82mm)
0.21"
(5.33mm)
69th Driest
Driest since:
1976
59th Wettest
Wettest since:
2018
Jul–Dec 1957
6-Month
16.51"
(419.35mm)
16.52"
(419.61mm)
-0.01"
(-0.26mm)
68th Driest
Driest since:
1976
60th Wettest
Wettest since:
2018
Jun–Dec 1957
7-Month
21.28"
(540.51mm)
21.15"
(537.21mm)
0.13"
(3.30mm)
66th Driest
Driest since:
1976
62nd Wettest
Wettest since:
2018
May–Dec 1957
8-Month
26.22"
(665.99mm)
25.20"
(640.08mm)
1.02"
(25.91mm)
72nd Driest
Driest since:
1976
56th Wettest
Wettest since:
1993
Apr–Dec 1957
9-Month
28.74"
(730.00mm)
28.15"
(715.01mm)
0.59"
(14.99mm)
67th Driest
Driest since:
1910
61st Wettest
Wettest since:
1993
Mar–Dec 1957
10-Month
30.62"
(777.75mm)
30.10"
(764.54mm)
0.52"
(13.21mm)
70th Driest
Driest since:
1910
58th Wettest
Wettest since:
1993
Feb–Dec 1957
11-Month
30.96"
(786.38mm)
31.12"
(790.45mm)
-0.16"
(-4.07mm)
64th Driest
Driest since:
1910
64th Wettest
Wettest since:
1993
Jan–Dec 1957
12-Month
31.52"
(800.61mm)
32.09"
(815.09mm)
-0.57"
(-14.48mm)
57th Driest
Driest since:
1910
71st Wettest
Wettest since:
1993
Jul 1956–Dec 1957
18-Month
46.02"
(1,168.91mm)
48.69"
(1,236.73mm)
-2.67"
(-67.82mm)
42nd Driest
Driest since:
1956
85th Wettest
Wettest since:
1993
Jan 1956–Dec 1957
24-Month
55.80"
(1,417.32mm)
64.24"
(1,631.70mm)
-8.44"
(-214.38mm)
12th Driest
Driest since:
1989
115th Wettest
Wettest since:
2019
Jan 1955–Dec 1957
36-Month
78.77"
(2,000.76mm)
96.36"
(2,447.54mm)
-17.59"
(-446.78mm)
1st Driest
Driest since:
1957
125th Wettest
Wettest since:
2010
Jan 1954–Dec 1957
48-Month
112.95"
(2,868.93mm)
128.37"
(3,260.60mm)
-15.42"
(-391.67mm)
7th Driest
Driest since:
1958
118th Wettest
Wettest since:
2010
Jan 1953–Dec 1957
60-Month
138.74"
(3,524.00mm)
160.36"
(4,073.14mm)
-21.62"
(-549.14mm)
4th Driest
Driest since:
1956
120th Wettest
Wettest since:
2010

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