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 2017

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 2017
1-Month
3.66"
(92.96mm)
3.67"
(93.22mm)
-0.01"
(-0.26mm)
69th Driest
Driest since:
1953
60th Wettest
Wettest since:
1915
Ties: 2001
Jul–Aug 2017
2-Month
8.65"
(219.71mm)
7.67"
(194.82mm)
0.98"
(24.89mm)
98th Driest
Driest since:
1930
31st Wettest
Wettest since:
1915
Jun–Aug 2017
3-Month
12.93"
(328.42mm)
11.92"
(302.77mm)
1.01"
(25.65mm)
85th Driest
Driest since:
1930
44th Wettest
Wettest since:
1958
May–Aug 2017
4-Month
18.80"
(477.52mm)
16.19"
(411.23mm)
2.61"
(66.29mm)
105th Driest
Driest since:
1936
24th Wettest
Wettest since:
1915
Apr–Aug 2017
5-Month
25.12"
(638.05mm)
20.10"
(510.54mm)
5.02"
(127.51mm)
122nd Driest
Driest since:
1930
7th Wettest
Wettest since:
2015
Mar–Aug 2017
6-Month
29.43"
(747.52mm)
23.91"
(607.31mm)
5.52"
(140.21mm)
121st Driest
Driest since:
1930
8th Wettest
Wettest since:
2015
Feb–Aug 2017
7-Month
30.84"
(783.34mm)
26.58"
(675.13mm)
4.26"
(108.21mm)
112th Driest
Driest since:
1930
17th Wettest
Wettest since:
2019
Ties: 2009
Jan–Aug 2017
8-Month
34.11"
(866.39mm)
29.63"
(752.60mm)
4.48"
(113.79mm)
109th Driest
Driest since:
1936
20th Wettest
Wettest since:
2019
Dec 2016–Aug 2017
9-Month
37.44"
(950.98mm)
32.72"
(831.09mm)
4.72"
(119.89mm)
111th Driest
Driest since:
1936
17th Wettest
Wettest since:
2019
Nov 2016–Aug 2017
10-Month
39.55"
(1,004.57mm)
35.86"
(910.84mm)
3.69"
(93.73mm)
99th Driest
Driest since:
1936
29th Wettest
Wettest since:
2019
Oct 2016–Aug 2017
11-Month
41.70"
(1,059.18mm)
38.78"
(985.01mm)
2.92"
(74.17mm)
85th Driest
Driest since:
1936
43rd Wettest
Wettest since:
2019
Sep 2016–Aug 2017
12-Month
44.98"
(1,142.49mm)
42.24"
(1,072.90mm)
2.74"
(69.59mm)
82nd Driest
Driest since:
1936
46th Wettest
Wettest since:
2019
Mar 2016–Aug 2017
18-Month
72.11"
(1,831.59mm)
66.13"
(1,679.70mm)
5.98"
(151.89mm)
102nd Driest
Driest since:
1931
26th Wettest
Wettest since:
2019
Sep 2015–Aug 2017
24-Month
93.50"
(2,374.90mm)
84.47"
(2,145.54mm)
9.03"
(229.36mm)
107th Driest
Driest since:
1941
20th Wettest
Wettest since:
2020
Sep 2014–Aug 2017
36-Month
141.84"
(3,602.74mm)
126.74"
(3,219.20mm)
15.10"
(383.54mm)
114th Driest
Driest since:
1941
12th Wettest
Wettest since:
2020
Sep 2013–Aug 2017
48-Month
185.10"
(4,701.54mm)
168.98"
(4,292.09mm)
16.12"
(409.45mm)
111th Driest
Driest since:
1956
14th Wettest
Wettest since:
2022
Sep 2012–Aug 2017
60-Month
234.21"
(5,948.93mm)
211.20"
(5,364.48mm)
23.01"
(584.45mm)
119th Driest
Driest since:
1934
5th Wettest
Wettest to Date
2020

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