Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio Valley Climate Region

Precipitation Rankings, December 1919

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 1919
1-Month 		2.20"
(55.88mm)		 3.11"
(78.99mm)		 -0.91"
(-23.11mm)		 30th Driest
Driest since:
 1958
99th Wettest
Wettest since:
 1990
Ties: 1898
Nov–Dec 1919
2-Month 		6.80"
(172.72mm)		 6.23"
(158.24mm)		 0.57"
(14.48mm)		 82nd Driest
Driest since:
 1976
47th Wettest
Wettest since:
 2015
Oct–Dec 1919
3-Month 		14.10"
(358.14mm)		 9.13"
(231.90mm)		 4.97"
(126.24mm)		 126th Driest
Driest since:
 1963
3rd Wettest
Wettest to Date
 1990
Sep–Dec 1919
4-Month 		16.63"
(422.40mm)		 12.60"
(320.04mm)		 4.03"
(102.36mm)		 117th Driest
Driest since:
 1963
12th Wettest
Wettest since:
 1926
Aug–Dec 1919
5-Month 		20.55"
(521.97mm)		 16.27"
(413.26mm)		 4.28"
(108.71mm)		 115th Driest
Driest since:
 1953
14th Wettest
Wettest since:
 1926
Jul–Dec 1919
6-Month 		23.26"
(590.80mm)		 20.27"
(514.86mm)		 2.99"
(75.94mm)		 99th Driest
Driest since:
 1953
30th Wettest
Wettest since:
 1926
Jun–Dec 1919
7-Month 		27.72"
(704.09mm)		 24.52"
(622.81mm)		 3.20"
(81.28mm)		 98th Driest
Driest since:
 1953
31st Wettest
Wettest since:
 2015
May–Dec 1919
8-Month 		33.21"
(843.53mm)		 28.79"
(731.27mm)		 4.42"
(112.26mm)		 110th Driest
Driest since:
 1953
19th Wettest
Wettest since:
 2015
Apr–Dec 1919
9-Month 		36.19"
(919.23mm)		 32.70"
(830.58mm)		 3.49"
(88.65mm)		 97th Driest
Driest since:
 1930
32nd Wettest
Wettest since:
 2015
Ties: 1951
Mar–Dec 1919
10-Month 		40.36"
(1,025.14mm)		 36.51"
(927.35mm)		 3.85"
(97.79mm)		 94th Driest
Driest since:
 1930
35th Wettest
Wettest since:
 2011
Feb–Dec 1919
11-Month 		42.34"
(1,075.44mm)		 39.19"
(995.43mm)		 3.15"
(80.01mm)		 91st Driest
Driest since:
 1930
38th Wettest
Wettest since:
 2011
Jan–Dec 1919
12-Month 		44.44"
(1,128.78mm)		 42.23"
(1,072.64mm)		 2.21"
(56.14mm)		 82nd Driest
Driest since:
 1930
47th Wettest
Wettest since:
 2019
Jul 1918–Dec 1919
18-Month 		64.57"
(1,640.08mm)		 62.51"
(1,587.75mm)		 2.06"
(52.33mm)		 69th Driest
Driest since:
 1953
59th Wettest
Wettest since:
 2019
Jan 1918–Dec 1919
24-Month 		85.00"
(2,159.00mm)		 84.45"
(2,145.03mm)		 0.55"
(13.97mm)		 60th Driest
Driest since:
 1953
68th Wettest
Wettest since:
 2019
Jan 1917–Dec 1919
36-Month 		123.91"
(3,147.31mm)		 126.69"
(3,217.93mm)		 -2.78"
(-70.62mm)		 40th Driest
Driest since:
 1954
87th Wettest
Wettest since:
 2020
Jan 1916–Dec 1919
48-Month 		165.77"
(4,210.56mm)		 168.95"
(4,291.33mm)		 -3.18"
(-80.77mm)		 36th Driest
Driest since:
 1955
90th Wettest
Wettest since:
 2021
Jan 1915–Dec 1919
60-Month 		212.48"
(5,396.99mm)		 211.20"
(5,364.48mm)		 1.28"
(32.51mm)		 60th Driest
Driest since:
 1956
65th Wettest
Wettest since:
 2021

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