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, October 1973

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
October 1973
1-Month		3.69"
(93.73mm)		2.90"
(73.66mm)		0.79"
(20.07mm)		88th Driest
Driest since:
1963
41st Wettest
Wettest since:
1919
Sep–Oct 1973
2-Month		7.35"
(186.69mm)		6.37"
(161.80mm)		0.98"
(24.89mm)		93rd Driest
Driest since:
1897
36th Wettest
Wettest since:
1926
Aug–Oct 1973
3-Month		9.92"
(251.97mm)		10.04"
(255.02mm)		-0.12"
(-3.05mm)		62nd Driest
Driest since:
1897
67th Wettest
Wettest since:
1926
Ties: 1961
Jul–Oct 1973
4-Month		14.78"
(375.41mm)		14.04"
(356.62mm)		0.74"
(18.79mm)		76th Driest
Driest since:
1953
53rd Wettest
Wettest since:
1926
Jun–Oct 1973
5-Month		19.82"
(503.43mm)		18.29"
(464.57mm)		1.53"
(38.86mm)		82nd Driest
Driest since:
1953
47th Wettest
Wettest since:
1926
May–Oct 1973
6-Month		25.35"
(643.89mm)		22.56"
(573.02mm)		2.79"
(70.87mm)		96th Driest
Driest since:
1930
33rd Wettest
Wettest since:
2009
Apr–Oct 1973
7-Month		31.15"
(791.21mm)		26.47"
(672.34mm)		4.68"
(118.87mm)		114th Driest
Driest since:
1930
15th Wettest
Wettest since:
2009
Mar–Oct 1973
8-Month		37.95"
(963.93mm)		30.28"
(769.11mm)		7.67"
(194.82mm)		127th Driest
Driest since:
1930
2nd Wettest
Wettest to Date
2009
Feb–Oct 1973
9-Month		39.93"
(1,014.22mm)		32.95"
(836.93mm)		6.98"
(177.29mm)		122nd Driest
Driest since:
1930
7th Wettest
Wettest since:
2019
Jan–Oct 1973
10-Month		42.53"
(1,080.26mm)		36.00"
(914.40mm)		6.53"
(165.86mm)		118th Driest
Driest since:
1930
11th Wettest
Wettest since:
2019
Dec 1972–Oct 1973
11-Month		47.13"
(1,197.10mm)		39.09"
(992.89mm)		8.04"
(204.21mm)		120th Driest
Driest since:
1930
8th Wettest
Wettest since:
2019
Nov 1972–Oct 1973
12-Month		52.37"
(1,330.20mm)		42.23"
(1,072.64mm)		10.14"
(257.56mm)		125th Driest
Driest since:
1963
3rd Wettest
Wettest since:
2019
May 1972–Oct 1973
18-Month		75.64"
(1,921.26mm)		64.79"
(1,645.67mm)		10.85"
(275.59mm)		121st Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
Nov 1971–Oct 1973
24-Month		96.39"
(2,448.31mm)		84.46"
(2,145.28mm)		11.93"
(303.03mm)		119th Driest
Driest since:
1931
8th Wettest
Wettest since:
2020
Nov 1970–Oct 1973
36-Month		133.04"
(3,379.22mm)		126.69"
(3,217.93mm)		6.35"
(161.29mm)		87th Driest
Driest since:
1954
39th Wettest
Wettest since:
2020
Nov 1969–Oct 1973
48-Month		177.33"
(4,504.18mm)		168.97"
(4,291.84mm)		8.36"
(212.34mm)		90th Driest
Driest since:
1956
35th Wettest
Wettest since:
2021
Nov 1968–Oct 1973
60-Month		221.30"
(5,621.02mm)		211.20"
(5,364.48mm)		10.10"
(256.54mm)		89th Driest
Driest since:
1956
35th Wettest
Wettest since:
2020

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