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, August 2019

View Period (Months):
Download: csv json xml
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 2019
1-Month
4.30"
(109.22mm)
3.67"
(93.22mm)
0.63"
(16.00mm)
97th Driest
Driest since:
1953
32nd Wettest
Wettest since:
1915
Jul–Aug 2019
2-Month
8.74"
(222.00mm)
7.67"
(194.82mm)
1.07"
(27.18mm)
101st Driest
Driest since:
1930
28th Wettest
Wettest since:
1915
Jun–Aug 2019
3-Month
14.90"
(378.46mm)
11.92"
(302.77mm)
2.98"
(75.69mm)
121st Driest
Driest since:
1930
8th Wettest
Wettest since:
1958
May–Aug 2019
4-Month
21.56"
(547.62mm)
16.19"
(411.23mm)
5.37"
(136.39mm)
126th Driest
Driest since:
1936
3rd Wettest
Wettest since:
1915
Apr–Aug 2019
5-Month
26.14"
(663.96mm)
20.10"
(510.54mm)
6.04"
(153.42mm)
127th Driest
Driest since:
1930
2nd Wettest
Wettest since:
2015
Mar–Aug 2019
6-Month
30.04"
(763.02mm)
23.91"
(607.31mm)
6.13"
(155.71mm)
124th Driest
Driest since:
1930
5th Wettest
Wettest since:
2015
Feb–Aug 2019
7-Month
35.85"
(910.59mm)
26.58"
(675.13mm)
9.27"
(235.46mm)
128th Driest
Driest since:
1930
1st Wettest
Wettest to Date
2019
Jan–Aug 2019
8-Month
39.70"
(1,008.38mm)
29.63"
(752.60mm)
10.07"
(255.78mm)
128th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Dec 2018–Aug 2019
9-Month
44.06"
(1,119.12mm)
32.72"
(831.09mm)
11.34"
(288.03mm)
127th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Nov 2018–Aug 2019
10-Month
48.29"
(1,226.57mm)
35.86"
(910.84mm)
12.43"
(315.73mm)
127th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Oct 2018–Aug 2019
11-Month
51.90"
(1,318.26mm)
38.78"
(985.01mm)
13.12"
(333.25mm)
127th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Sep 2018–Aug 2019
12-Month
57.82"
(1,468.63mm)
42.24"
(1,072.90mm)
15.58"
(395.73mm)
127th Driest
Driest since:
1936
1st Wettest
Wettest to Date
2019
Mar 2018–Aug 2019
18-Month
84.15"
(2,137.41mm)
66.13"
(1,679.70mm)
18.02"
(457.71mm)
127th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Sep 2017–Aug 2019
24-Month
104.01"
(2,641.85mm)
84.47"
(2,145.54mm)
19.54"
(496.31mm)
125th Driest
Driest since:
1941
2nd Wettest
Wettest to Date
2020
Sep 2016–Aug 2019
36-Month
148.99"
(3,784.35mm)
126.74"
(3,219.20mm)
22.25"
(565.15mm)
122nd Driest
Driest since:
1941
4th Wettest
Wettest since:
2020
Sep 2015–Aug 2019
48-Month
197.51"
(5,016.75mm)
168.98"
(4,292.09mm)
28.53"
(724.66mm)
121st Driest
Driest since:
1956
4th Wettest
Wettest to Date
2022
Sep 2014–Aug 2019
60-Month
245.85"
(6,244.59mm)
211.19"
(5,364.23mm)
34.66"
(880.36mm)
121st Driest
Driest since:
1934
3rd Wettest
Wettest to Date
2020

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