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 1997

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1997
1-Month
34.3°F
(1.3°C)
32.4°F
(0.2°C)
1.9°F
(1.1°C)
82nd Coolest
Coolest since:
1989
47th Warmest
Warmest since:
2015
Ties: 1896, 1928
Nov–Dec 1997
2-Month
37.0°F
(2.8°C)
37.3°F
(2.9°C)
-0.3°F
(-0.1°C)
46th Coolest
Coolest since:
1976
83rd Warmest
Warmest since:
2015
Ties: 1905, 1920, 1936, 2002, 2014
Oct–Dec 1997
3-Month
42.7°F
(5.9°C)
43.0°F
(6.1°C)
-0.3°F
(-0.2°C)
48th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
2015
Ties: 1924, 1996, 2002
Sep–Dec 1997
4-Month
48.1°F
(8.9°C)
48.7°F
(9.3°C)
-0.6°F
(-0.4°C)
42nd Coolest
Coolest since:
1976
87th Warmest
Warmest since:
1931
Ties: 1895, 1926, 1996, 2010
Aug–Dec 1997
5-Month
52.5°F
(11.4°C)
53.4°F
(11.9°C)
-0.9°F
(-0.5°C)
30th Coolest
Coolest since:
1976
99th Warmest
Warmest since:
1931
Jul–Dec 1997
6-Month
56.0°F
(13.3°C)
56.8°F
(13.8°C)
-0.8°F
(-0.5°C)
28th Coolest
Coolest since:
1976
101st Warmest
Warmest since:
1931
Ties: 1944, 2014
Jun–Dec 1997
7-Month
57.8°F
(14.3°C)
58.7°F
(14.8°C)
-0.9°F
(-0.5°C)
25th Coolest
Coolest since:
1976
104th Warmest
Warmest since:
1931
Ties: 1966
May–Dec 1997
8-Month
57.6°F
(14.2°C)
59.1°F
(15.1°C)
-1.5°F
(-0.9°C)
11th Coolest
Coolest since:
1917
118th Warmest
Warmest since:
1931
Ties: 1929, 1945, 1958, 1974, 1992
Apr–Dec 1997
9-Month
56.5°F
(13.6°C)
58.2°F
(14.6°C)
-1.7°F
(-1.0°C)
6th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2015
Ties: 1924
Mar–Dec 1997
10-Month
55.2°F
(12.9°C)
56.5°F
(13.6°C)
-1.3°F
(-0.7°C)
12th Coolest
Coolest since:
1917
117th Warmest
Warmest since:
2016
Ties: 1904
Feb–Dec 1997
11-Month
53.6°F
(12.0°C)
54.3°F
(12.4°C)
-0.7°F
(-0.4°C)
35th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2012
Ties: 1903, 1993
Jan–Dec 1997
12-Month
51.4°F
(10.8°C)
52.1°F
(11.2°C)
-0.7°F
(-0.4°C)
32nd Coolest
Coolest since:
1917
97th Warmest
Warmest since:
2012
Jul 1996–Dec 1997
18-Month
52.9°F
(11.6°C)
53.7°F
(12.1°C)
-0.8°F
(-0.5°C)
19th Coolest
Coolest since:
1904, 1917
109th Warmest
Warmest since:
2012, 2016
Ties: 1912, 1966, 1996
Jan 1996–Dec 1997
24-Month
51.3°F
(10.7°C)
52.2°F
(11.2°C)
-0.9°F
(-0.5°C)
16th Coolest
Coolest since:
1979
112th Warmest
Warmest since:
2017
Ties: 1925
Jan 1995–Dec 1997
36-Month
51.6°F
(10.9°C)
52.2°F
(11.2°C)
-0.6°F
(-0.3°C)
22nd Coolest
Coolest since:
1980
105th Warmest
Warmest since:
2018
Ties: 1925, 1977
Jan 1994–Dec 1997
48-Month
51.8°F
(11.0°C)
52.2°F
(11.2°C)
-0.4°F
(-0.2°C)
31st Coolest
Coolest since:
1979
95th Warmest
Warmest since:
2019
Ties: 1977
Jan 1993–Dec 1997
60-Month
51.8°F
(11.0°C)
52.2°F
(11.2°C)
-0.4°F
(-0.2°C)
29th Coolest
Coolest since:
1980
96th Warmest
Warmest since:
2020
Ties: 1927, 1929, 1960, 1984

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