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 1957

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1957
1-Month 		3.21"
(81.53mm)		 2.90"
(73.66mm)		 0.31"
(7.87mm)		 76th Driest
Driest since:
 1963
53rd Wettest
Wettest since:
 1919
Sep–Oct 1957
2-Month 		6.80"
(172.72mm)		 6.37"
(161.80mm)		 0.43"
(10.92mm)		 76th Driest
Driest since:
 1897
53rd Wettest
Wettest since:
 1926
Ties: 1902, 2008
Aug–Oct 1957
3-Month 		9.02"
(229.11mm)		 10.04"
(255.02mm)		 -1.02"
(-25.91mm)		 35th Driest
Driest since:
 1897
94th Wettest
Wettest since:
 1926
Jul–Oct 1957
4-Month 		12.38"
(314.45mm)		 14.04"
(356.62mm)		 -1.66"
(-42.17mm)		 27th Driest
Driest since:
 1953
102nd Wettest
Wettest since:
 1926
Ties: 1924
Jun–Oct 1957
5-Month 		18.53"
(470.66mm)		 18.29"
(464.57mm)		 0.24"
(6.09mm)		 62nd Driest
Driest since:
 1953
67th Wettest
Wettest since:
 1926
May–Oct 1957
6-Month 		24.30"
(617.22mm)		 22.56"
(573.02mm)		 1.74"
(44.20mm)		 78th Driest
Driest since:
 1930
51st Wettest
Wettest since:
 2009
Apr–Oct 1957
7-Month 		30.40"
(772.16mm)		 26.47"
(672.34mm)		 3.93"
(99.82mm)		 102nd Driest
Driest since:
 1930
27th Wettest
Wettest since:
 2009
Mar–Oct 1957
8-Month 		32.76"
(832.10mm)		 30.28"
(769.11mm)		 2.48"
(62.99mm)		 90th Driest
Driest since:
 1930
39th Wettest
Wettest since:
 2009
Feb–Oct 1957
9-Month 		36.13"
(917.70mm)		 32.95"
(836.93mm)		 3.18"
(80.77mm)		 95th Driest
Driest since:
 1930
34th Wettest
Wettest since:
 2019
Ties: 1926
Jan–Oct 1957
10-Month 		40.00"
(1,016.00mm)		 36.00"
(914.40mm)		 4.00"
(101.60mm)		 102nd Driest
Driest since:
 1930
27th Wettest
Wettest since:
 2019
Dec 1956–Oct 1957
11-Month 		43.67"
(1,109.22mm)		 39.09"
(992.89mm)		 4.58"
(116.33mm)		 105th Driest
Driest since:
 1930
23rd Wettest
Wettest since:
 2019
Nov 1956–Oct 1957
12-Month 		45.85"
(1,164.59mm)		 42.23"
(1,072.64mm)		 3.62"
(91.95mm)		 94th Driest
Driest since:
 1963
34th Wettest
Wettest since:
 2019
May 1956–Oct 1957
18-Month 		65.46"
(1,662.68mm)		 64.79"
(1,645.67mm)		 0.67"
(17.01mm)		 56th Driest
Driest since:
 1931
72nd Wettest
Wettest since:
 2019
Nov 1955–Oct 1957
24-Month 		83.08"
(2,110.23mm)		 84.46"
(2,145.28mm)		 -1.38"
(-35.05mm)		 47th Driest
Driest since:
 1931
80th Wettest
Wettest since:
 2020
Nov 1954–Oct 1957
36-Month 		123.90"
(3,147.06mm)		 126.69"
(3,217.93mm)		 -2.79"
(-70.87mm)		 36th Driest
Driest since:
 1954
90th Wettest
Wettest since:
 2020
Nov 1953–Oct 1957
48-Month 		161.15"
(4,093.21mm)		 168.97"
(4,291.84mm)		 -7.82"
(-198.63mm)		 22nd Driest
Driest since:
 1956
103rd Wettest
Wettest since:
 2021
Nov 1952–Oct 1957
60-Month 		195.37"
(4,962.40mm)		 211.20"
(5,364.48mm)		 -15.83"
(-402.08mm)		 6th Driest
Driest since:
 1956
118th Wettest
Wettest since:
 2020

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