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 1917

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1917
1-Month
3.45"
(87.63mm)
3.67"
(93.22mm)
-0.22"
(-5.59mm)
53rd Driest
Driest since:
1953
76th Wettest
Wettest since:
1915
Jul–Aug 1917
2-Month
7.51"
(190.75mm)
7.67"
(194.82mm)
-0.16"
(-4.07mm)
55th Driest
Driest since:
1930
74th Wettest
Wettest since:
1915
Ties: 1951
Jun–Aug 1917
3-Month
12.21"
(310.13mm)
11.92"
(302.77mm)
0.29"
(7.36mm)
71st Driest
Driest since:
1930
58th Wettest
Wettest since:
1958
May–Aug 1917
4-Month
16.40"
(416.56mm)
16.19"
(411.23mm)
0.21"
(5.33mm)
60th Driest
Driest since:
1936
69th Wettest
Wettest since:
1915
Apr–Aug 1917
5-Month
20.94"
(531.88mm)
20.10"
(510.54mm)
0.84"
(21.34mm)
69th Driest
Driest since:
1930
60th Wettest
Wettest since:
2015
Mar–Aug 1917
6-Month
25.79"
(655.07mm)
23.91"
(607.31mm)
1.88"
(47.76mm)
83rd Driest
Driest since:
1930
46th Wettest
Wettest since:
2015
Feb–Aug 1917
7-Month
27.45"
(697.23mm)
26.58"
(675.13mm)
0.87"
(22.10mm)
65th Driest
Driest since:
1930
64th Wettest
Wettest since:
2019
Jan–Aug 1917
8-Month
31.10"
(789.94mm)
29.63"
(752.60mm)
1.47"
(37.34mm)
76th Driest
Driest since:
1936
53rd Wettest
Wettest since:
2019
Dec 1916–Aug 1917
9-Month
34.21"
(868.93mm)
32.72"
(831.09mm)
1.49"
(37.84mm)
71st Driest
Driest since:
1936
57th Wettest
Wettest since:
2019
Nov 1916–Aug 1917
10-Month
36.21"
(919.73mm)
35.86"
(910.84mm)
0.35"
(8.89mm)
57th Driest
Driest since:
1936
71st Wettest
Wettest since:
2019
Oct 1916–Aug 1917
11-Month
38.64"
(981.46mm)
38.78"
(985.01mm)
-0.14"
(-3.55mm)
54th Driest
Driest since:
1936
74th Wettest
Wettest since:
2019
Sep 1916–Aug 1917
12-Month
41.60"
(1,056.64mm)
42.24"
(1,072.90mm)
-0.64"
(-16.26mm)
46th Driest
Driest since:
1936
82nd Wettest
Wettest since:
2019
Ties: 2007
Mar 1916–Aug 1917
18-Month
64.31"
(1,633.47mm)
66.13"
(1,679.70mm)
-1.82"
(-46.23mm)
41st Driest
Driest since:
1931
87th Wettest
Wettest since:
2019
Sep 1915–Aug 1917
24-Month
87.27"
(2,216.66mm)
84.47"
(2,145.54mm)
2.80"
(71.12mm)
70th Driest
Driest since:
1941
57th Wettest
Wettest since:
2020
Sep 1914–Aug 1917
36-Month
131.90"
(3,350.26mm)
126.74"
(3,219.20mm)
5.16"
(131.06mm)
80th Driest
Driest since:
1941
46th Wettest
Wettest since:
2020
Sep 1913–Aug 1917
48-Month
167.67"
(4,258.82mm)
168.98"
(4,292.09mm)
-1.31"
(-33.27mm)
47th Driest
Driest since:
1956
78th Wettest
Wettest since:
2022
Sep 1912–Aug 1917
60-Month
207.67"
(5,274.82mm)
211.20"
(5,364.48mm)
-3.53"
(-89.66mm)
36th Driest
Driest since:
1934
88th Wettest
Wettest since:
2020

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