Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1898

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1898
1-Month
29.5°F
(-1.4°C)
32.4°F
(0.2°C)
-2.9°F
(-1.6°C)
25th Coolest
Coolest to Date
1989
104th Warmest
Warmest since:
2015
Ties: 1942
Nov–Dec 1898
2-Month
34.2°F
(1.2°C)
37.4°F
(3.0°C)
-3.2°F
(-1.8°C)
12th Coolest
Coolest to Date
1976
117th Warmest
Warmest since:
2015
Ties: 1935, 1962
Oct–Dec 1898
3-Month
40.7°F
(4.8°C)
43.0°F
(6.1°C)
-2.3°F
(-1.3°C)
13th Coolest
Coolest to Date
1917
116th Warmest
Warmest since:
2015
Sep–Dec 1898
4-Month
47.7°F
(8.7°C)
48.7°F
(9.3°C)
-1.0°F
(-0.6°C)
32nd Coolest
Coolest to Date
1976
97th Warmest
Warmest since:
1931
Ties: 1914, 1916, 1983
Aug–Dec 1898
5-Month
52.8°F
(11.6°C)
53.4°F
(11.9°C)
-0.6°F
(-0.3°C)
33rd Coolest
Coolest to Date
1976
96th Warmest
Warmest since:
1931
Ties: 1914, 1993
Jul–Dec 1898
6-Month
56.6°F
(13.7°C)
56.8°F
(13.8°C)
-0.2°F
(-0.1°C)
45th Coolest
Coolest since:
1976
84th Warmest
Warmest since:
1931
Ties: 1915, 1964
Jun–Dec 1898
7-Month
58.8°F
(14.9°C)
58.7°F
(14.8°C)
0.1°F
(0.1°C)
61st Coolest
Coolest since:
1976
68th Warmest
Warmest since:
1931
Ties: 1942, 1957
May–Dec 1898
8-Month
59.4°F
(15.2°C)
59.0°F
(15.0°C)
0.4°F
(0.2°C)
69th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
1931
Ties: 1897, 1914, 1948, 1977
Apr–Dec 1898
9-Month
58.1°F
(14.5°C)
58.2°F
(14.6°C)
-0.1°F
(-0.1°C)
44th Coolest
Coolest to Date
1917
85th Warmest
Warmest since:
2015
Ties: 1932, 1940, 1980, 2008, 2009
Mar–Dec 1898
10-Month
56.9°F
(13.8°C)
56.5°F
(13.6°C)
0.4°F
(0.2°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016
Ties: 1897, 1956, 1957, 1964
Feb–Dec 1898
11-Month
54.6°F
(12.6°C)
54.3°F
(12.4°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2012
Ties: 1934, 1942, 1982, 1985, 2003
Jan–Dec 1898
12-Month
52.9°F
(11.6°C)
52.2°F
(11.2°C)
0.7°F
(0.4°C)
85th Coolest
Coolest since:
1917
44th Warmest
Warmest to Date
2012
Ties: 1927, 1930
Jul 1897–Dec 1898
18-Month
54.6°F
(12.6°C)
53.7°F
(12.1°C)
0.9°F
(0.5°C)
97th Coolest
Coolest since:
1904, 1917
31st Warmest
Warmest to Date
2012, 2016
Ties: 1919, 1934, 1946, 2004, 2008
Jan 1897–Dec 1898
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
42nd Warmest
Warmest to Date
2017
Ties: 1900, 1914, 1957, 1988, 1990
Jan 1896–Dec 1898
36-Month
52.7°F
(11.5°C)
52.2°F
(11.2°C)
0.5°F
(0.3°C)
81st Coolest
Coolest since:
1980
46th Warmest
Warmest to Date
2018
Ties: 1938, 1948, 1949, 1998
Jan 1895–Dec 1898
48-Month
52.2°F
(11.2°C)
52.2°F
(11.2°C)
0.0°F
(0.0°C)
49th Coolest
Coolest to Date
1979
77th Warmest
Warmest to Date
2019
Ties: 1909, 1913, 1973, 1976

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