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, December 1947

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
December 1947
1-Month
2.00"
(50.80mm)
1.51"
(38.35mm)
0.49"
(12.45mm)
93rd Driest
Driest since:
1976
36th Wettest
Wettest since:
2015
Ties: 1902
Nov–Dec 1947
2-Month
4.06"
(103.12mm)
3.62"
(91.95mm)
0.44"
(11.17mm)
84th Driest
Driest since:
1976
45th Wettest
Wettest since:
2015
Oct–Dec 1947
3-Month
7.21"
(183.13mm)
6.23"
(158.24mm)
0.98"
(24.89mm)
92nd Driest
Driest since:
1910
37th Wettest
Wettest since:
1941
Sep–Dec 1947
4-Month
11.64"
(295.66mm)
10.15"
(257.81mm)
1.49"
(37.85mm)
87th Driest
Driest since:
1950
42nd Wettest
Wettest since:
1961
Aug–Dec 1947
5-Month
12.66"
(321.56mm)
13.87"
(352.30mm)
-1.21"
(-30.74mm)
54th Driest
Driest since:
1953
75th Wettest
Wettest since:
1970
Ties: 1940, 1969
Jul–Dec 1947
6-Month
14.23"
(361.44mm)
17.85"
(453.39mm)
-3.62"
(-91.95mm)
33rd Driest
Driest since:
1953
96th Wettest
Wettest since:
1902
Jun–Dec 1947
7-Month
23.89"
(606.81mm)
22.46"
(570.48mm)
1.43"
(36.33mm)
86th Driest
Driest since:
1953
43rd Wettest
Wettest since:
1902
May–Dec 1947
8-Month
28.42"
(721.87mm)
26.50"
(673.10mm)
1.92"
(48.77mm)
81st Driest
Driest since:
1953
48th Wettest
Wettest since:
2010
Apr–Dec 1947
9-Month
34.78"
(883.41mm)
29.84"
(757.94mm)
4.94"
(125.47mm)
102nd Driest
Driest since:
1953
27th Wettest
Wettest since:
2010
Mar–Dec 1947
10-Month
36.59"
(929.39mm)
32.19"
(817.63mm)
4.40"
(111.76mm)
96th Driest
Driest since:
1901
33rd Wettest
Wettest since:
2010
Feb–Dec 1947
11-Month
36.75"
(933.45mm)
33.42"
(848.87mm)
3.33"
(84.58mm)
90th Driest
Driest since:
1901
39th Wettest
Wettest since:
2010
Jan–Dec 1947
12-Month
38.35"
(974.09mm)
34.75"
(882.65mm)
3.60"
(91.44mm)
91st Driest
Driest since:
1901
38th Wettest
Wettest since:
2010
Jul 1946–Dec 1947
18-Month
56.15"
(1,426.21mm)
52.63"
(1,336.80mm)
3.52"
(89.41mm)
86th Driest
Driest since:
1956
42nd Wettest
Wettest since:
2010
Jan 1946–Dec 1947
24-Month
78.51"
(1,994.15mm)
69.50"
(1,765.30mm)
9.01"
(228.85mm)
106th Driest
Driest since:
1989
22nd Wettest
Wettest since:
2010
Jan 1945–Dec 1947
36-Month
114.26"
(2,902.20mm)
104.23"
(2,647.44mm)
10.03"
(254.76mm)
99th Driest
Driest since:
1989
28th Wettest
Wettest since:
2010
Jan 1944–Dec 1947
48-Month
154.76"
(3,930.90mm)
138.86"
(3,527.04mm)
15.90"
(403.86mm)
108th Driest
Driest since:
1956
18th Wettest
Wettest since:
2010
Jan 1943–Dec 1947
60-Month
189.98"
(4,825.49mm)
173.41"
(4,404.61mm)
16.57"
(420.88mm)
106th Driest
Driest since:
1956
19th Wettest
Wettest since:
2011

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