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, December 1973

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 1973
1-Month
3.97"
(100.84mm)
3.11"
(78.99mm)
0.86"
(21.85mm)
96th Driest
Driest since:
1958
33rd Wettest
Wettest since:
1990
Ties: 1914
Nov–Dec 1973
2-Month
9.19"
(233.43mm)
6.23"
(158.24mm)
2.96"
(75.19mm)
120th Driest
Driest since:
1976
9th Wettest
Wettest since:
2015
Oct–Dec 1973
3-Month
12.88"
(327.15mm)
9.13"
(231.90mm)
3.75"
(95.25mm)
120th Driest
Driest since:
1963
9th Wettest
Wettest since:
1990
Ties: 1982
Sep–Dec 1973
4-Month
16.54"
(420.12mm)
12.60"
(320.04mm)
3.94"
(100.08mm)
115th Driest
Driest since:
1963
14th Wettest
Wettest since:
1926
Aug–Dec 1973
5-Month
19.11"
(485.39mm)
16.27"
(413.26mm)
2.84"
(72.13mm)
104th Driest
Driest since:
1953
25th Wettest
Wettest since:
1926
Jul–Dec 1973
6-Month
23.97"
(608.84mm)
20.27"
(514.86mm)
3.70"
(93.98mm)
108th Driest
Driest since:
1953
21st Wettest
Wettest since:
1926
Jun–Dec 1973
7-Month
29.01"
(736.85mm)
24.52"
(622.81mm)
4.49"
(114.04mm)
111th Driest
Driest since:
1953
18th Wettest
Wettest since:
2015
May–Dec 1973
8-Month
34.54"
(877.32mm)
28.79"
(731.27mm)
5.75"
(146.05mm)
116th Driest
Driest since:
1953
13th Wettest
Wettest since:
2015
Apr–Dec 1973
9-Month
40.34"
(1,024.64mm)
32.70"
(830.58mm)
7.64"
(194.06mm)
123rd Driest
Driest since:
1930
6th Wettest
Wettest to Date
2015
Mar–Dec 1973
10-Month
47.14"
(1,197.36mm)
36.51"
(927.35mm)
10.63"
(270.01mm)
126th Driest
Driest since:
1930
3rd Wettest
Wettest to Date
2011
Feb–Dec 1973
11-Month
49.12"
(1,247.65mm)
39.19"
(995.43mm)
9.93"
(252.22mm)
123rd Driest
Driest since:
1930
6th Wettest
Wettest to Date
2011
Jan–Dec 1973
12-Month
51.72"
(1,313.69mm)
42.23"
(1,072.64mm)
9.49"
(241.05mm)
123rd Driest
Driest since:
1930
6th Wettest
Wettest to Date
2019
Jul 1972–Dec 1973
18-Month
77.97"
(1,980.44mm)
62.51"
(1,587.75mm)
15.46"
(392.69mm)
125th Driest
Driest since:
1953
3rd Wettest
Wettest since:
2019
Jan 1972–Dec 1973
24-Month
99.00"
(2,514.60mm)
84.45"
(2,145.03mm)
14.55"
(369.57mm)
124th Driest
Driest since:
1953
4th Wettest
Wettest to Date
2019
Jan 1971–Dec 1973
36-Month
137.31"
(3,487.67mm)
126.69"
(3,217.93mm)
10.62"
(269.74mm)
104th Driest
Driest since:
1954
23rd Wettest
Wettest since:
2020
Jan 1970–Dec 1973
48-Month
180.53"
(4,585.46mm)
168.95"
(4,291.33mm)
11.58"
(294.13mm)
100th Driest
Driest since:
1955
26th Wettest
Wettest since:
2021
Jan 1969–Dec 1973
60-Month
222.82"
(5,659.63mm)
211.20"
(5,364.48mm)
11.62"
(295.15mm)
93rd Driest
Driest since:
1956
32nd Wettest
Wettest since:
2021

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