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 1915

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 1915
1-Month 		0.76"
(19.30mm)		 1.51"
(38.35mm)		 -0.75"
(-19.05mm)		 26th Driest
Driest since:
 1976
103rd Wettest
Wettest since:
 2015
Nov–Dec 1915
2-Month 		3.18"
(80.77mm)		 3.62"
(91.95mm)		 -0.44"
(-11.18mm)		 60th Driest
Driest since:
 1976
69th Wettest
Wettest since:
 2015
Oct–Dec 1915
3-Month 		4.11"
(104.39mm)		 6.23"
(158.24mm)		 -2.12"
(-53.85mm)		 26th Driest
Driest since:
 1910
103rd Wettest
Wettest since:
 1941
Sep–Dec 1915
4-Month 		11.15"
(283.21mm)		 10.15"
(257.81mm)		 1.00"
(25.40mm)		 84th Driest
Driest since:
 1950
45th Wettest
Wettest since:
 1961
Aug–Dec 1915
5-Month 		13.26"
(336.80mm)		 13.87"
(352.30mm)		 -0.61"
(-15.50mm)		 60th Driest
Driest since:
 1953
69th Wettest
Wettest since:
 1970
Jul–Dec 1915
6-Month 		22.76"
(578.10mm)		 17.85"
(453.39mm)		 4.91"
(124.71mm)		 105th Driest
Driest since:
 1953
24th Wettest
Wettest since:
 1902
Jun–Dec 1915
7-Month 		28.06"
(712.72mm)		 22.46"
(570.48mm)		 5.60"
(142.24mm)		 105th Driest
Driest since:
 1953
24th Wettest
Wettest since:
 1902
May–Dec 1915
8-Month 		34.73"
(882.14mm)		 26.50"
(673.10mm)		 8.23"
(209.04mm)		 116th Driest
Driest since:
 1953
13th Wettest
Wettest since:
 2010
Apr–Dec 1915
9-Month 		35.75"
(908.05mm)		 29.84"
(757.94mm)		 5.91"
(150.11mm)		 105th Driest
Driest since:
 1953
24th Wettest
Wettest since:
 2010
Mar–Dec 1915
10-Month 		36.63"
(930.40mm)		 32.19"
(817.63mm)		 4.44"
(112.77mm)		 97th Driest
Driest since:
 1901
32nd Wettest
Wettest since:
 2010
Feb–Dec 1915
11-Month 		38.91"
(988.31mm)		 33.42"
(848.87mm)		 5.49"
(139.44mm)		 102nd Driest
Driest since:
 1901
27th Wettest
Wettest since:
 2010
Jan–Dec 1915
12-Month 		40.87"
(1,038.10mm)		 34.75"
(882.65mm)		 6.12"
(155.45mm)		 109th Driest
Driest since:
 1901
20th Wettest
Wettest since:
 2010
Jul 1914–Dec 1915
18-Month 		57.28"
(1,454.91mm)		 52.63"
(1,336.80mm)		 4.65"
(118.11mm)		 93rd Driest
Driest since:
 1956
35th Wettest
Wettest since:
 2010
Ties: 1965
Jan 1914–Dec 1915
24-Month 		69.09"
(1,754.89mm)		 69.50"
(1,765.30mm)		 -0.41"
(-10.41mm)		 62nd Driest
Driest since:
 1989
66th Wettest
Wettest since:
 2010
Ties: 1902
Jan 1913–Dec 1915
36-Month 		99.07"
(2,516.38mm)		 104.23"
(2,647.44mm)		 -5.16"
(-131.06mm)		 36th Driest
Driest since:
 1989
91st Wettest
Wettest since:
 2010
Jan 1912–Dec 1915
48-Month 		124.06"
(3,151.12mm)		 138.86"
(3,527.04mm)		 -14.80"
(-375.92mm)		 14th Driest
Driest since:
 1956
112th Wettest
Wettest since:
 2010
Jan 1911–Dec 1915
60-Month 		159.58"
(4,053.33mm)		 173.41"
(4,404.61mm)		 -13.83"
(-351.28mm)		 16th Driest
Driest since:
 1956
109th Wettest
Wettest since:
 2011

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