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, September 2013

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
September 2013
1-Month		2.74"
(69.60mm)		3.47"
(88.14mm)		-0.73"
(-18.54mm)		35th Driest
Driest since:
1897
94th Wettest
Wettest since:
1926
Aug–Sep 2013
2-Month		6.04"
(153.42mm)		7.14"
(181.36mm)		-1.10"
(-27.94mm)		32nd Driest
Driest since:
1897
97th Wettest
Wettest since:
1926
Jul–Sep 2013
3-Month		10.83"
(275.08mm)		11.14"
(282.96mm)		-0.31"
(-7.88mm)		55th Driest
Driest since:
1953
74th Wettest
Wettest since:
1926
Ties: 1987
Jun–Sep 2013
4-Month		16.38"
(416.05mm)		15.39"
(390.91mm)		0.99"
(25.14mm)		76th Driest
Driest since:
1953
53rd Wettest
Wettest since:
1915
May–Sep 2013
5-Month		21.50"
(546.10mm)		19.66"
(499.36mm)		1.84"
(46.74mm)		86th Driest
Driest since:
1930
43rd Wettest
Wettest since:
1915
Apr–Sep 2013
6-Month		27.32"
(693.93mm)		23.57"
(598.68mm)		3.75"
(95.25mm)		111th Driest
Driest since:
1930
18th Wettest
Wettest since:
2011
Mar–Sep 2013
7-Month		30.74"
(780.80mm)		27.38"
(695.45mm)		3.36"
(85.35mm)		101st Driest
Driest since:
1930
28th Wettest
Wettest since:
1945
Feb–Sep 2013
8-Month		33.28"
(845.31mm)		30.05"
(763.27mm)		3.23"
(82.04mm)		97th Driest
Driest since:
1930
32nd Wettest
Wettest since:
1945
Jan–Sep 2013
9-Month		37.86"
(961.64mm)		33.10"
(840.74mm)		4.76"
(120.90mm)		110th Driest
Driest since:
1930
19th Wettest
Wettest since:
1950
Dec 2012–Sep 2013
10-Month		41.54"
(1,055.12mm)		36.19"
(919.23mm)		5.35"
(135.89mm)		113th Driest
Driest since:
1930
15th Wettest
Wettest since:
1950
Ties: 1975
Nov 2012–Sep 2013
11-Month		42.80"
(1,087.12mm)		39.33"
(998.98mm)		3.47"
(88.14mm)		98th Driest
Driest since:
1930
30th Wettest
Wettest since:
2019
Oct 2012–Sep 2013
12-Month		46.59"
(1,183.39mm)		42.25"
(1,073.15mm)		4.34"
(110.24mm)		99th Driest
Driest since:
1925
29th Wettest
Wettest since:
2019
Apr 2012–Sep 2013
18-Month		66.06"
(1,677.92mm)		65.79"
(1,671.07mm)		0.27"
(6.85mm)		52nd Driest
Driest since:
1931
76th Wettest
Wettest since:
2019
Oct 2011–Sep 2013
24-Month		87.73"
(2,228.34mm)		84.47"
(2,145.54mm)		3.26"
(82.80mm)		75th Driest
Driest since:
1941
52nd Wettest
Wettest since:
2020
Oct 2010–Sep 2013
36-Month		135.97"
(3,453.64mm)		126.72"
(3,218.69mm)		9.25"
(234.95mm)		98th Driest
Driest since:
1941
28th Wettest
Wettest since:
2020
Oct 2009–Sep 2013
48-Month		183.54"
(4,661.92mm)		168.99"
(4,292.35mm)		14.55"
(369.57mm)		105th Driest
Driest since:
1956
20th Wettest
Wettest since:
2021
Oct 2008–Sep 2013
60-Month		230.20"
(5,847.08mm)		211.21"
(5,364.73mm)		18.99"
(482.35mm)		113th Driest
Driest since:
1956
11th Wettest
Wettest since:
2020

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