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, August 1933

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1933
1-Month
3.61"
(91.69mm)
3.67"
(93.22mm)
-0.06"
(-1.53mm)
63rd Driest
Driest since:
1953
66th Wettest
Wettest since:
1915
Ties: 1949
Jul–Aug 1933
2-Month
7.30"
(185.42mm)
7.67"
(194.82mm)
-0.37"
(-9.40mm)
38th Driest
Driest since:
1930
91st Wettest
Wettest since:
1915
Ties: 1995
Jun–Aug 1933
3-Month
8.91"
(226.31mm)
11.92"
(302.77mm)
-3.01"
(-76.46mm)
9th Driest
Driest since:
1930
120th Wettest
Wettest since:
1958
May–Aug 1933
4-Month
16.24"
(412.50mm)
16.19"
(411.23mm)
0.05"
(1.27mm)
57th Driest
Driest since:
1936
72nd Wettest
Wettest since:
1915
Apr–Aug 1933
5-Month
20.25"
(514.35mm)
20.10"
(510.54mm)
0.15"
(3.81mm)
58th Driest
Driest since:
1930
71st Wettest
Wettest since:
2015
Mar–Aug 1933
6-Month
25.09"
(637.29mm)
23.91"
(607.31mm)
1.18"
(29.98mm)
71st Driest
Driest since:
1930
58th Wettest
Wettest since:
2015
Feb–Aug 1933
7-Month
27.79"
(705.87mm)
26.58"
(675.13mm)
1.21"
(30.74mm)
73rd Driest
Driest since:
1930
56th Wettest
Wettest since:
2019
Ties: 1964
Jan–Aug 1933
8-Month
30.95"
(786.13mm)
29.63"
(752.60mm)
1.32"
(33.53mm)
74th Driest
Driest since:
1936
55th Wettest
Wettest since:
2019
Dec 1932–Aug 1933
9-Month
35.43"
(899.92mm)
32.72"
(831.09mm)
2.71"
(68.83mm)
89th Driest
Driest since:
1936
39th Wettest
Wettest since:
2019
Ties: 1908
Nov 1932–Aug 1933
10-Month
37.92"
(963.17mm)
35.86"
(910.84mm)
2.06"
(52.33mm)
79th Driest
Driest since:
1936
49th Wettest
Wettest since:
2019
Oct 1932–Aug 1933
11-Month
41.88"
(1,063.75mm)
38.78"
(985.01mm)
3.10"
(78.74mm)
88th Driest
Driest since:
1936
40th Wettest
Wettest since:
2019
Sep 1932–Aug 1933
12-Month
45.24"
(1,149.10mm)
42.24"
(1,072.90mm)
3.00"
(76.20mm)
86th Driest
Driest since:
1936
42nd Wettest
Wettest since:
2019
Mar 1932–Aug 1933
18-Month
66.21"
(1,681.73mm)
66.13"
(1,679.70mm)
0.08"
(2.03mm)
56th Driest
Driest since:
1931
72nd Wettest
Wettest since:
2019
Sep 1931–Aug 1933
24-Month
88.85"
(2,256.79mm)
84.47"
(2,145.54mm)
4.38"
(111.25mm)
83rd Driest
Driest since:
1941
44th Wettest
Wettest since:
2020
Sep 1930–Aug 1933
36-Month
123.43"
(3,135.12mm)
126.74"
(3,219.20mm)
-3.31"
(-84.08mm)
33rd Driest
Driest since:
1941
93rd Wettest
Wettest since:
2020
Sep 1929–Aug 1933
48-Month
157.93"
(4,011.42mm)
168.98"
(4,292.09mm)
-11.05"
(-280.67mm)
14th Driest
Driest since:
1956
111th Wettest
Wettest since:
2022
Sep 1928–Aug 1933
60-Month
203.82"
(5,177.03mm)
211.20"
(5,364.48mm)
-7.38"
(-187.45mm)
24th Driest
Driest since:
1934
100th Wettest
Wettest since:
2020

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