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, September 1998

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1998
1-Month
2.23"
(56.64mm)
3.47"
(88.14mm)
-1.24"
(-31.50mm)
16th Driest
Driest since:
1897
113th Wettest
Wettest since:
1926
Aug–Sep 1998
2-Month
5.19"
(131.83mm)
7.14"
(181.36mm)
-1.95"
(-49.53mm)
11th Driest
Driest since:
1897
118th Wettest
Wettest since:
1926
Jul–Sep 1998
3-Month
10.01"
(254.25mm)
11.14"
(282.96mm)
-1.13"
(-28.71mm)
33rd Driest
Driest since:
1953
96th Wettest
Wettest since:
1926
Jun–Sep 1998
4-Month
17.80"
(452.12mm)
15.39"
(390.91mm)
2.41"
(61.21mm)
103rd Driest
Driest since:
1953
26th Wettest
Wettest since:
1915
May–Sep 1998
5-Month
22.06"
(560.32mm)
19.66"
(499.36mm)
2.40"
(60.96mm)
99th Driest
Driest since:
1930
30th Wettest
Wettest since:
1915
Ties: 1977
Apr–Sep 1998
6-Month
27.84"
(707.14mm)
23.57"
(598.68mm)
4.27"
(108.46mm)
113th Driest
Driest since:
1930
16th Wettest
Wettest since:
2011
Mar–Sep 1998
7-Month
32.20"
(817.88mm)
27.38"
(695.45mm)
4.82"
(122.43mm)
114th Driest
Driest since:
1930
15th Wettest
Wettest since:
1945
Feb–Sep 1998
8-Month
35.27"
(895.86mm)
30.05"
(763.27mm)
5.22"
(132.59mm)
117th Driest
Driest since:
1930
12th Wettest
Wettest since:
1945
Ties: 1993
Jan–Sep 1998
9-Month
38.76"
(984.50mm)
33.10"
(840.74mm)
5.66"
(143.76mm)
117th Driest
Driest since:
1930
12th Wettest
Wettest since:
1950
Dec 1997–Sep 1998
10-Month
41.27"
(1,048.26mm)
36.19"
(919.23mm)
5.08"
(129.03mm)
110th Driest
Driest since:
1930
18th Wettest
Wettest since:
1950
Nov 1997–Sep 1998
11-Month
44.03"
(1,118.36mm)
39.33"
(998.98mm)
4.70"
(119.38mm)
106th Driest
Driest since:
1930
22nd Wettest
Wettest since:
2019
Oct 1997–Sep 1998
12-Month
46.31"
(1,176.27mm)
42.25"
(1,073.15mm)
4.06"
(103.12mm)
97th Driest
Driest since:
1925
31st Wettest
Wettest since:
2019
Apr 1997–Sep 1998
18-Month
68.98"
(1,752.09mm)
65.79"
(1,671.07mm)
3.19"
(81.02mm)
81st Driest
Driest since:
1931
47th Wettest
Wettest since:
2019
Oct 1996–Sep 1998
24-Month
91.44"
(2,322.58mm)
84.47"
(2,145.54mm)
6.97"
(177.04mm)
99th Driest
Driest since:
1941
28th Wettest
Wettest since:
2020
Oct 1995–Sep 1998
36-Month
138.52"
(3,518.41mm)
126.72"
(3,218.69mm)
11.80"
(299.72mm)
108th Driest
Driest since:
1941
18th Wettest
Wettest since:
2020
Oct 1994–Sep 1998
48-Month
182.04"
(4,623.82mm)
168.99"
(4,292.35mm)
13.05"
(331.47mm)
104th Driest
Driest since:
1956
21st Wettest
Wettest since:
2021
Oct 1993–Sep 1998
60-Month
226.35"
(5,749.29mm)
211.21"
(5,364.73mm)
15.14"
(384.56mm)
102nd Driest
Driest since:
1956
22nd Wettest
Wettest since:
2020

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