Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 1970

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 1970
1-Month 		2.75"
(69.85mm)		 3.11"
(78.99mm)		 -0.36"
(-9.14mm)		 50th Driest
Driest since:
 1958
79th Wettest
Wettest since:
 1990
Nov–Dec 1970
2-Month 		4.92"
(124.97mm)		 6.23"
(158.24mm)		 -1.31"
(-33.27mm)		 28th Driest
Driest since:
 1976
101st Wettest
Wettest since:
 2015
Oct–Dec 1970
3-Month 		9.07"
(230.38mm)		 9.13"
(231.90mm)		 -0.06"
(-1.52mm)		 58th Driest
Driest since:
 1963
71st Wettest
Wettest since:
 1990
Sep–Dec 1970
4-Month 		14.80"
(375.92mm)		 12.60"
(320.04mm)		 2.20"
(55.88mm)		 96th Driest
Driest since:
 1963
33rd Wettest
Wettest since:
 1926
Ties: 1967
Aug–Dec 1970
5-Month 		18.73"
(475.74mm)		 16.27"
(413.26mm)		 2.46"
(62.48mm)		 101st Driest
Driest since:
 1953
28th Wettest
Wettest since:
 1926
Jul–Dec 1970
6-Month 		21.83"
(554.48mm)		 20.27"
(514.86mm)		 1.56"
(39.62mm)		 85th Driest
Driest since:
 1953
44th Wettest
Wettest since:
 1926
Jun–Dec 1970
7-Month 		26.90"
(683.26mm)		 24.52"
(622.81mm)		 2.38"
(60.45mm)		 91st Driest
Driest since:
 1953
38th Wettest
Wettest since:
 2015
May–Dec 1970
8-Month 		30.93"
(785.62mm)		 28.79"
(731.27mm)		 2.14"
(54.35mm)		 80th Driest
Driest since:
 1953
49th Wettest
Wettest since:
 2015
Apr–Dec 1970
9-Month 		37.02"
(940.31mm)		 32.70"
(830.58mm)		 4.32"
(109.73mm)		 105th Driest
Driest since:
 1930
24th Wettest
Wettest since:
 2015
Mar–Dec 1970
10-Month 		40.21"
(1,021.33mm)		 36.51"
(927.35mm)		 3.70"
(93.98mm)		 92nd Driest
Driest since:
 1930
37th Wettest
Wettest since:
 2011
Feb–Dec 1970
11-Month 		42.17"
(1,071.12mm)		 39.19"
(995.43mm)		 2.98"
(75.69mm)		 90th Driest
Driest since:
 1930
39th Wettest
Wettest since:
 2011
Jan–Dec 1970
12-Month 		43.22"
(1,097.79mm)		 42.23"
(1,072.64mm)		 0.99"
(25.15mm)		 72nd Driest
Driest since:
 1930
57th Wettest
Wettest since:
 2019
Jul 1969–Dec 1970
18-Month 		64.79"
(1,645.67mm)		 62.51"
(1,587.75mm)		 2.28"
(57.92mm)		 73rd Driest
Driest since:
 1953
55th Wettest
Wettest since:
 2019
Jan 1969–Dec 1970
24-Month 		85.51"
(2,171.95mm)		 84.45"
(2,145.03mm)		 1.06"
(26.92mm)		 65th Driest
Driest since:
 1953
63rd Wettest
Wettest since:
 2019
Jan 1968–Dec 1970
36-Month 		126.12"
(3,203.45mm)		 126.69"
(3,217.93mm)		 -0.57"
(-14.48mm)		 51st Driest
Driest since:
 1954
76th Wettest
Wettest since:
 2020
Jan 1967–Dec 1970
48-Month 		169.46"
(4,304.28mm)		 168.95"
(4,291.33mm)		 0.51"
(12.95mm)		 54th Driest
Driest since:
 1955
72nd Wettest
Wettest since:
 2021
Jan 1966–Dec 1970
60-Month 		208.53"
(5,296.66mm)		 211.20"
(5,364.48mm)		 -2.67"
(-67.82mm)		 39th Driest
Driest since:
 1956
86th Wettest
Wettest since:
 2021
Ties: 1958

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