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, September 1929

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
September 1929
1-Month
3.37"
(85.60mm)
3.47"
(88.14mm)
-0.10"
(-2.54mm)
69th Driest
Driest since:
1897
60th Wettest
Wettest since:
1926
Aug–Sep 1929
2-Month
5.96"
(151.38mm)
7.14"
(181.36mm)
-1.18"
(-29.98mm)
29th Driest
Driest since:
1897
100th Wettest
Wettest since:
1926
Jul–Sep 1929
3-Month
10.30"
(261.62mm)
11.14"
(282.96mm)
-0.84"
(-21.34mm)
41st Driest
Driest since:
1953
88th Wettest
Wettest since:
1926
Jun–Sep 1929
4-Month
14.95"
(379.73mm)
15.39"
(390.91mm)
-0.44"
(-11.18mm)
52nd Driest
Driest since:
1953
77th Wettest
Wettest since:
1915
May–Sep 1929
5-Month
21.67"
(550.42mm)
19.66"
(499.36mm)
2.01"
(51.06mm)
89th Driest
Driest since:
1930
40th Wettest
Wettest since:
1915
Apr–Sep 1929
6-Month
26.77"
(679.96mm)
23.57"
(598.68mm)
3.20"
(81.28mm)
103rd Driest
Driest since:
1930
26th Wettest
Wettest since:
2011
Mar–Sep 1929
7-Month
30.84"
(783.34mm)
27.38"
(695.45mm)
3.46"
(87.89mm)
104th Driest
Driest since:
1930
25th Wettest
Wettest since:
1945
Ties: 1896
Feb–Sep 1929
8-Month
33.44"
(849.38mm)
30.05"
(763.27mm)
3.39"
(86.11mm)
100th Driest
Driest since:
1930
29th Wettest
Wettest since:
1945
Jan–Sep 1929
9-Month
37.60"
(955.04mm)
33.10"
(840.74mm)
4.50"
(114.30mm)
106th Driest
Driest since:
1930
23rd Wettest
Wettest since:
1950
Dec 1928–Sep 1929
10-Month
39.75"
(1,009.65mm)
36.19"
(919.23mm)
3.56"
(90.42mm)
98th Driest
Driest since:
1930
30th Wettest
Wettest since:
1950
Nov 1928–Sep 1929
11-Month
43.58"
(1,106.93mm)
39.33"
(998.98mm)
4.25"
(107.95mm)
104th Driest
Driest since:
1930
24th Wettest
Wettest since:
2019
Oct 1928–Sep 1929
12-Month
47.32"
(1,201.93mm)
42.25"
(1,073.15mm)
5.07"
(128.78mm)
107th Driest
Driest since:
1925
21st Wettest
Wettest since:
2019
Apr 1928–Sep 1929
18-Month
73.58"
(1,868.93mm)
65.79"
(1,671.07mm)
7.79"
(197.86mm)
110th Driest
Driest since:
1931
18th Wettest
Wettest since:
2019
Oct 1927–Sep 1929
24-Month
91.88"
(2,333.75mm)
84.47"
(2,145.54mm)
7.41"
(188.21mm)
102nd Driest
Driest since:
1941
25th Wettest
Wettest since:
2020
Oct 1926–Sep 1929
36-Month
143.58"
(3,646.93mm)
126.72"
(3,218.69mm)
16.86"
(428.24mm)
118th Driest
Driest since:
1941
8th Wettest
Wettest to Date
2020
Oct 1925–Sep 1929
48-Month
188.41"
(4,785.61mm)
168.99"
(4,292.35mm)
19.42"
(493.26mm)
117th Driest
Driest since:
1956
8th Wettest
Wettest to Date
2021
Oct 1924–Sep 1929
60-Month
221.81"
(5,633.97mm)
211.21"
(5,364.73mm)
10.60"
(269.24mm)
93rd Driest
Driest since:
1956
31st Wettest
Wettest to Date
2020

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