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 1898

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2021)		 Wettest/Driest
Since		 Record
December 1898
1-Month 		0.60"
(15.24mm)		 1.51"
(38.35mm)		 -0.91"
(-23.11mm)		 16th Driest
Driest since:
 1976
112th Wettest
Wettest since:
 2015
Nov–Dec 1898
2-Month 		2.07"
(52.58mm)		 3.62"
(91.95mm)		 -1.55"
(-39.37mm)		 27th Driest
Driest since:
 1976
101st Wettest
Wettest since:
 2015
Oct–Dec 1898
3-Month 		6.08"
(154.43mm)		 6.23"
(158.24mm)		 -0.15"
(-3.81mm)		 62nd Driest
Driest since:
 1910
66th Wettest
Wettest to Date
 1941
Sep–Dec 1898
4-Month 		10.08"
(256.03mm)		 10.15"
(257.81mm)		 -0.07"
(-1.78mm)		 73rd Driest
Driest since:
 1950
55th Wettest
Wettest to Date
 1961
Ties: 1929
Aug–Dec 1898
5-Month 		15.25"
(387.35mm)		 13.87"
(352.30mm)		 1.38"
(35.05mm)		 84th Driest
Driest since:
 1953
44th Wettest
Wettest to Date
 1970
Jul–Dec 1898
6-Month 		18.05"
(458.47mm)		 17.85"
(453.39mm)		 0.20"
(5.08mm)		 76th Driest
Driest since:
 1953
52nd Wettest
Wettest since:
 1902
Jun–Dec 1898
7-Month 		22.17"
(563.12mm)		 22.46"
(570.48mm)		 -0.29"
(-7.36mm)		 66th Driest
Driest since:
 1953
62nd Wettest
Wettest since:
 1902
Ties: 2003
May–Dec 1898
8-Month 		27.15"
(689.61mm)		 26.50"
(673.10mm)		 0.65"
(16.51mm)		 69th Driest
Driest since:
 1953
59th Wettest
Wettest since:
 2010
Apr–Dec 1898
9-Month 		30.33"
(770.38mm)		 29.84"
(757.94mm)		 0.49"
(12.44mm)		 69th Driest
Driest since:
 1953
59th Wettest
Wettest since:
 2010
Mar–Dec 1898
10-Month 		33.94"
(862.08mm)		 32.19"
(817.63mm)		 1.75"
(44.45mm)		 76th Driest
Driest since:
 1901
52nd Wettest
Wettest since:
 2010
Feb–Dec 1898
11-Month 		34.98"
(888.49mm)		 33.42"
(848.87mm)		 1.56"
(39.62mm)		 75th Driest
Driest since:
 1901
53rd Wettest
Wettest since:
 2010
Jan–Dec 1898
12-Month 		38.09"
(967.49mm)		 34.75"
(882.65mm)		 3.34"
(84.84mm)		 88th Driest
Driest since:
 1901
40th Wettest
Wettest to Date
 2010
Jul 1897–Dec 1898
18-Month 		48.62"
(1,234.95mm)		 52.63"
(1,336.80mm)		 -4.01"
(-101.85mm)		 41st Driest
Driest since:
 1956
86th Wettest
Wettest since:
 2010
Jan 1897–Dec 1898
24-Month 		66.10"
(1,678.94mm)		 69.50"
(1,765.30mm)		 -3.40"
(-86.36mm)		 40th Driest
Driest since:
 1989
87th Wettest
Wettest to Date
 2010
Jan 1896–Dec 1898
36-Month 		102.64"
(2,607.06mm)		 104.23"
(2,647.44mm)		 -1.59"
(-40.38mm)		 51st Driest
Driest since:
 1989
75th Wettest
Wettest to Date
 2010
Jan 1895–Dec 1898
48-Month 		131.15"
(3,331.21mm)		 138.86"
(3,527.04mm)		 -7.71"
(-195.83mm)		 30th Driest
Driest since:
 1956
95th Wettest
Wettest to Date
 2010

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