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 1899

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
December 1899
1-Month		3.12"
(79.25mm)		3.11"
(78.99mm)		0.01"
(0.26mm)		68th Driest
Driest since:
1958
61st Wettest
Wettest since:
1990
Ties: 1904, 1944, 2004
Nov–Dec 1899
2-Month		5.13"
(130.30mm)		6.23"
(158.24mm)		-1.10"
(-27.94mm)		38th Driest
Driest since:
1976
91st Wettest
Wettest since:
2015
Oct–Dec 1899
3-Month		7.90"
(200.66mm)		9.13"
(231.90mm)		-1.23"
(-31.24mm)		42nd Driest
Driest since:
1963
87th Wettest
Wettest since:
1990
Sep–Dec 1899
4-Month		10.04"
(255.02mm)		12.60"
(320.04mm)		-2.56"
(-65.02mm)		23rd Driest
Driest since:
1963
106th Wettest
Wettest since:
1926
Aug–Dec 1899
5-Month		12.82"
(325.63mm)		16.27"
(413.26mm)		-3.45"
(-87.63mm)		14th Driest
Driest since:
1953
115th Wettest
Wettest since:
1926
Jul–Dec 1899
6-Month		16.88"
(428.75mm)		20.27"
(514.86mm)		-3.39"
(-86.11mm)		17th Driest
Driest since:
1953
112th Wettest
Wettest since:
1926
Jun–Dec 1899
7-Month		20.11"
(510.79mm)		24.52"
(622.81mm)		-4.41"
(-112.02mm)		15th Driest
Driest since:
1953
114th Wettest
Wettest since:
2015
May–Dec 1899
8-Month		25.08"
(637.03mm)		28.79"
(731.27mm)		-3.71"
(-94.24mm)		23rd Driest
Driest since:
1953
106th Wettest
Wettest since:
2015
Apr–Dec 1899
9-Month		27.61"
(701.29mm)		32.70"
(830.58mm)		-5.09"
(-129.29mm)		11th Driest
Driest to Date
1930
118th Wettest
Wettest since:
2015
Mar–Dec 1899
10-Month		32.60"
(828.04mm)		36.51"
(927.35mm)		-3.91"
(-99.31mm)		21st Driest
Driest since:
1930
108th Wettest
Wettest since:
2011
Feb–Dec 1899
11-Month		35.88"
(911.35mm)		39.19"
(995.43mm)		-3.31"
(-84.08mm)		27th Driest
Driest since:
1930
102nd Wettest
Wettest since:
2011
Jan–Dec 1899
12-Month		39.28"
(997.71mm)		42.23"
(1,072.64mm)		-2.95"
(-74.93mm)		28th Driest
Driest since:
1930
101st Wettest
Wettest since:
2019
Jul 1898–Dec 1899
18-Month		61.78"
(1,569.21mm)		62.51"
(1,587.75mm)		-0.73"
(-18.54mm)		47th Driest
Driest since:
1953
81st Wettest
Wettest since:
2019
Jan 1898–Dec 1899
24-Month		88.92"
(2,258.57mm)		84.45"
(2,145.03mm)		4.47"
(113.54mm)		86th Driest
Driest since:
1953
42nd Wettest
Wettest since:
2019
Jan 1897–Dec 1899
36-Month		131.16"
(3,331.46mm)		126.69"
(3,217.93mm)		4.47"
(113.53mm)		78th Driest
Driest since:
1954
49th Wettest
Wettest since:
2020
Jan 1896–Dec 1899
48-Month		172.59"
(4,383.79mm)		168.95"
(4,291.33mm)		3.64"
(92.46mm)		78th Driest
Driest since:
1955
48th Wettest
Wettest to Date
2021
Ties: 1980
Jan 1895–Dec 1899
60-Month		208.63"
(5,299.20mm)		211.20"
(5,364.48mm)		-2.57"
(-65.28mm)		41st Driest
Driest to Date
1956
84th Wettest
Wettest to Date
2021

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