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 1990

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  • Record Coolest
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  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1990
1-Month
36.8°F
(2.7°C)
32.4°F
(0.2°C)
4.4°F
(2.5°C)
106th Coolest
Coolest since:
1989
22nd Warmest
Warmest since:
2015
Ties: 1946, 2018
Nov–Dec 1990
2-Month
41.9°F
(5.5°C)
37.3°F
(2.9°C)
4.6°F
(2.6°C)
119th Coolest
Coolest since:
1976
9th Warmest
Warmest since:
2015
Oct–Dec 1990
3-Month
46.0°F
(7.8°C)
43.0°F
(6.1°C)
3.0°F
(1.7°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
2015
Sep–Dec 1990
4-Month
51.0°F
(10.6°C)
48.7°F
(9.3°C)
2.3°F
(1.3°C)
113th Coolest
Coolest since:
1976
15th Warmest
Warmest since:
1931
Ties: 1984, 1994
Aug–Dec 1990
5-Month
55.0°F
(12.8°C)
53.3°F
(11.8°C)
1.7°F
(1.0°C)
111th Coolest
Coolest since:
1976
17th Warmest
Warmest since:
1931
Ties: 1936, 2020
Jul–Dec 1990
6-Month
58.0°F
(14.4°C)
56.8°F
(13.8°C)
1.2°F
(0.6°C)
105th Coolest
Coolest since:
1976
23rd Warmest
Warmest since:
1931
Ties: 1897, 1938, 1982, 1994, 2002
Jun–Dec 1990
7-Month
59.6°F
(15.3°C)
58.6°F
(14.8°C)
1.0°F
(0.5°C)
92nd Coolest
Coolest since:
1976
36th Warmest
Warmest since:
1931
Ties: 1897, 1919, 1956, 1970, 2010
May–Dec 1990
8-Month
59.6°F
(15.3°C)
59.1°F
(15.1°C)
0.5°F
(0.2°C)
76th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
1931
Ties: 1946, 1952, 2006
Apr–Dec 1990
9-Month
58.7°F
(14.8°C)
58.2°F
(14.6°C)
0.5°F
(0.2°C)
73rd Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2015
Ties: 1952, 1956, 1957, 1964, 1975, 1982, 1984, 1985
Mar–Dec 1990
10-Month
57.4°F
(14.1°C)
56.5°F
(13.6°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1917
40th Warmest
Warmest since:
2016
Ties: 1911, 1949, 1959
Feb–Dec 1990
11-Month
55.7°F
(13.2°C)
54.2°F
(12.3°C)
1.5°F
(0.9°C)
108th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2012
Ties: 1953, 2015
Jan–Dec 1990
12-Month
54.3°F
(12.4°C)
52.2°F
(11.2°C)
2.1°F
(1.2°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2012
Jul 1989–Dec 1990
18-Month
54.3°F
(12.4°C)
53.7°F
(12.1°C)
0.6°F
(0.3°C)
86th Coolest
Coolest since:
1904, 1917
41st Warmest
Warmest since:
2012, 2016
Ties: 1911, 1973, 1974, 2015
Jan 1989–Dec 1990
24-Month
52.7°F
(11.5°C)
52.2°F
(11.2°C)
0.5°F
(0.3°C)
86th Coolest
Coolest since:
1979
41st Warmest
Warmest since:
2017
Ties: 1900, 1914, 1957, 1988
Jan 1988–Dec 1990
36-Month
52.4°F
(11.3°C)
52.2°F
(11.2°C)
0.2°F
(0.1°C)
68th Coolest
Coolest since:
1980
58th Warmest
Warmest since:
2018
Ties: 1911, 1915, 1944, 1986
Jan 1987–Dec 1990
48-Month
52.7°F
(11.5°C)
52.2°F
(11.2°C)
0.5°F
(0.3°C)
82nd Coolest
Coolest since:
1979
43rd Warmest
Warmest since:
2019
Ties: 1900, 1987, 1994
Jan 1986–Dec 1990
60-Month
52.8°F
(11.6°C)
52.2°F
(11.2°C)
0.6°F
(0.4°C)
90th Coolest
Coolest since:
1980
34th Warmest
Warmest since:
2020
Ties: 1925, 1939, 1942, 1949, 1953, 1954, 1993, 1999

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