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 1951

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
December 1951
1-Month		4.47"
(113.54mm)		3.11"
(78.99mm)		1.36"
(34.55mm)		112th Driest
Driest since:
1958
17th Wettest
Wettest since:
1990
Nov–Dec 1951
2-Month		9.12"
(231.65mm)		6.23"
(158.24mm)		2.89"
(73.41mm)		118th Driest
Driest since:
1976
11th Wettest
Wettest to Date
2015
Oct–Dec 1951
3-Month		11.84"
(300.74mm)		9.13"
(231.90mm)		2.71"
(68.84mm)		111th Driest
Driest since:
1963
18th Wettest
Wettest since:
1990
Sep–Dec 1951
4-Month		15.78"
(400.81mm)		12.60"
(320.04mm)		3.18"
(80.77mm)		109th Driest
Driest since:
1963
20th Wettest
Wettest since:
1926
Aug–Dec 1951
5-Month		19.03"
(483.36mm)		16.27"
(413.26mm)		2.76"
(70.10mm)		103rd Driest
Driest since:
1953
26th Wettest
Wettest since:
1926
Jul–Dec 1951
6-Month		23.29"
(591.57mm)		20.27"
(514.86mm)		3.02"
(76.71mm)		100th Driest
Driest since:
1953
29th Wettest
Wettest since:
1926
Jun–Dec 1951
7-Month		29.53"
(750.06mm)		24.52"
(622.81mm)		5.01"
(127.25mm)		119th Driest
Driest since:
1953
10th Wettest
Wettest since:
2015
May–Dec 1951
8-Month		32.62"
(828.55mm)		28.79"
(731.27mm)		3.83"
(97.28mm)		103rd Driest
Driest since:
1953
26th Wettest
Wettest since:
2015
Apr–Dec 1951
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: 1919
Mar–Dec 1951
10-Month		40.44"
(1,027.18mm)		36.51"
(927.35mm)		3.93"
(99.83mm)		95th Driest
Driest since:
1930
34th Wettest
Wettest since:
2011
Feb–Dec 1951
11-Month		44.64"
(1,133.86mm)		39.19"
(995.43mm)		5.45"
(138.43mm)		111th Driest
Driest since:
1930
18th Wettest
Wettest since:
2011
Jan–Dec 1951
12-Month		48.71"
(1,237.23mm)		42.23"
(1,072.64mm)		6.48"
(164.59mm)		111th Driest
Driest since:
1930
18th Wettest
Wettest since:
2019
Jul 1950–Dec 1951
18-Month		69.53"
(1,766.06mm)		62.51"
(1,587.75mm)		7.02"
(178.31mm)		111th Driest
Driest since:
1953
17th Wettest
Wettest since:
2019
Jan 1950–Dec 1951
24-Month		98.91"
(2,512.31mm)		84.45"
(2,145.03mm)		14.46"
(367.28mm)		123rd Driest
Driest since:
1953
5th Wettest
Wettest to Date
2019
Jan 1949–Dec 1951
36-Month		145.32"
(3,691.13mm)		126.69"
(3,217.93mm)		18.63"
(473.20mm)		120th Driest
Driest since:
1954
7th Wettest
Wettest to Date
2020
Jan 1948–Dec 1951
48-Month		189.81"
(4,821.17mm)		168.95"
(4,291.33mm)		20.86"
(529.84mm)		118th Driest
Driest since:
1955
8th Wettest
Wettest to Date
2021
Jan 1947–Dec 1951
60-Month		230.11"
(5,844.79mm)		211.20"
(5,364.48mm)		18.91"
(480.31mm)		113th Driest
Driest since:
1956
12th Wettest
Wettest to Date
2021

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