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 2020

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 2020
1-Month
3.80"
(96.52mm)
3.67"
(93.22mm)
0.13"
(3.30mm)
73rd Driest
Driest since:
1953
56th Wettest
Wettest since:
1915
Jul–Aug 2020
2-Month
8.73"
(221.74mm)
7.67"
(194.82mm)
1.06"
(26.92mm)
100th Driest
Driest since:
1930
29th Wettest
Wettest since:
1915
Jun–Aug 2020
3-Month
12.64"
(321.06mm)
11.92"
(302.77mm)
0.72"
(18.29mm)
78th Driest
Driest since:
1930
51st Wettest
Wettest since:
1958
May–Aug 2020
4-Month
18.07"
(458.98mm)
16.19"
(411.23mm)
1.88"
(47.75mm)
92nd Driest
Driest since:
1936
37th Wettest
Wettest since:
1915
Apr–Aug 2020
5-Month
22.64"
(575.06mm)
20.10"
(510.54mm)
2.54"
(64.52mm)
96th Driest
Driest since:
1930
33rd Wettest
Wettest since:
2015
Mar–Aug 2020
6-Month
28.11"
(713.99mm)
23.91"
(607.31mm)
4.20"
(106.68mm)
115th Driest
Driest since:
1930
14th Wettest
Wettest since:
2015
Feb–Aug 2020
7-Month
32.25"
(819.15mm)
26.58"
(675.13mm)
5.67"
(144.02mm)
119th Driest
Driest since:
1930
10th Wettest
Wettest since:
2019
Jan–Aug 2020
8-Month
36.82"
(935.23mm)
29.63"
(752.60mm)
7.19"
(182.63mm)
126th Driest
Driest since:
1936
3rd Wettest
Wettest since:
2019
Dec 2019–Aug 2020
9-Month
40.39"
(1,025.91mm)
32.72"
(831.09mm)
7.67"
(194.82mm)
123rd Driest
Driest since:
1936
5th Wettest
Wettest since:
2019
Nov 2019–Aug 2020
10-Month
43.53"
(1,105.66mm)
35.86"
(910.84mm)
7.67"
(194.82mm)
123rd Driest
Driest since:
1936
5th Wettest
Wettest since:
2019
Oct 2019–Aug 2020
11-Month
48.79"
(1,239.27mm)
38.78"
(985.01mm)
10.01"
(254.26mm)
125th Driest
Driest since:
1936
3rd Wettest
Wettest since:
2019
Sep 2019–Aug 2020
12-Month
51.08"
(1,297.43mm)
42.24"
(1,072.90mm)
8.84"
(224.53mm)
123rd Driest
Driest since:
1936
5th Wettest
Wettest since:
2019
Mar 2019–Aug 2020
18-Month
81.12"
(2,060.45mm)
66.13"
(1,679.70mm)
14.99"
(380.75mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest since:
2019
Sep 2018–Aug 2020
24-Month
108.90"
(2,766.06mm)
84.47"
(2,145.54mm)
24.43"
(620.52mm)
126th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2020
Sep 2017–Aug 2020
36-Month
155.09"
(3,939.29mm)
126.74"
(3,219.20mm)
28.35"
(720.09mm)
125th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2020
Sep 2016–Aug 2020
48-Month
200.07"
(5,081.78mm)
168.98"
(4,292.09mm)
31.09"
(789.69mm)
122nd Driest
Driest since:
1956
3rd Wettest
Wettest to Date
2022
Sep 2015–Aug 2020
60-Month
248.59"
(6,314.19mm)
211.20"
(5,364.48mm)
37.39"
(949.71mm)
123rd Driest
Driest since:
1934
1st Wettest
Wettest to Date
2020

Citing This Page