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 River Basin

Average Temperature Rankings, December 1931

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1931
1-Month
40.5°F
(4.7°C)
32.4°F
(0.2°C)
8.1°F
(4.5°C)
124th Coolest
Coolest since:
1989
5th Warmest
Warmest since:
2015
Nov–Dec 1931
2-Month
45.4°F
(7.4°C)
37.4°F
(3.0°C)
8.0°F
(4.4°C)
127th Coolest
Coolest since:
1976
2nd Warmest
Warmest to Date
2015
Oct–Dec 1931
3-Month
49.3°F
(9.6°C)
42.9°F
(6.1°C)
6.4°F
(3.5°C)
127th Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2015
Sep–Dec 1931
4-Month
54.7°F
(12.6°C)
48.7°F
(9.3°C)
6.0°F
(3.3°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
1931
Aug–Dec 1931
5-Month
58.2°F
(14.6°C)
53.4°F
(11.9°C)
4.8°F
(2.7°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
1931
Jul–Dec 1931
6-Month
61.3°F
(16.3°C)
56.7°F
(13.7°C)
4.6°F
(2.6°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
1931
Jun–Dec 1931
7-Month
62.8°F
(17.1°C)
58.7°F
(14.8°C)
4.1°F
(2.3°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest to Date
1931
May–Dec 1931
8-Month
62.4°F
(16.9°C)
59.1°F
(15.1°C)
3.3°F
(1.8°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
1931
Apr–Dec 1931
9-Month
61.1°F
(16.2°C)
58.2°F
(14.6°C)
2.9°F
(1.6°C)
127th Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2015
Mar–Dec 1931
10-Month
58.7°F
(14.8°C)
56.5°F
(13.6°C)
2.2°F
(1.2°C)
121st Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2016
Ties: 1998, 2011
Feb–Dec 1931
11-Month
56.6°F
(13.7°C)
54.2°F
(12.3°C)
2.4°F
(1.4°C)
123rd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
2012
Jan–Dec 1931
12-Month
54.6°F
(12.6°C)
52.2°F
(11.2°C)
2.4°F
(1.4°C)
123rd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
2012
Jul 1930–Dec 1931
18-Month
55.3°F
(12.9°C)
53.7°F
(12.1°C)
1.6°F
(0.8°C)
112th Coolest
Coolest since:
1904, 1917
16th Warmest
Warmest since:
2012, 2016
Ties: 1922
Jan 1930–Dec 1931
24-Month
53.7°F
(12.1°C)
52.1°F
(11.2°C)
1.6°F
(0.9°C)
110th Coolest
Coolest since:
1979
18th Warmest
Warmest since:
2017
Ties: 2022
Jan 1929–Dec 1931
36-Month
52.9°F
(11.6°C)
52.2°F
(11.2°C)
0.7°F
(0.4°C)
93rd Coolest
Coolest since:
1980
34th Warmest
Warmest since:
2018
Ties: 1946, 1987, 1988, 2005
Jan 1928–Dec 1931
48-Month
52.6°F
(11.4°C)
52.2°F
(11.2°C)
0.4°F
(0.2°C)
78th Coolest
Coolest since:
1979
48th Warmest
Warmest since:
2019
Ties: 1899, 1938, 1944, 1946, 1947, 1953, 1988
Jan 1927–Dec 1931
60-Month
52.6°F
(11.4°C)
52.1°F
(11.2°C)
0.5°F
(0.2°C)
76th Coolest
Coolest since:
1980
49th Warmest
Warmest since:
2020
Ties: 1937, 1938, 1946, 1948, 1987, 1995

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