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 2018

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 2018
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, 1990
Nov–Dec 2018
2-Month
37.8°F
(3.2°C)
37.3°F
(2.9°C)
0.5°F
(0.3°C)
69th Coolest
Coolest since:
1976
59th Warmest
Warmest since:
2015
Ties: 1900, 1906, 1912, 1966
Oct–Dec 2018
3-Month
43.8°F
(6.6°C)
43.0°F
(6.1°C)
0.8°F
(0.5°C)
78th Coolest
Coolest since:
1917
50th Warmest
Warmest since:
2015
Ties: 1908, 1934, 1979
Sep–Dec 2018
4-Month
50.5°F
(10.3°C)
48.7°F
(9.3°C)
1.8°F
(1.0°C)
101st Coolest
Coolest since:
1976
27th Warmest
Warmest since:
1931
Aug–Dec 2018
5-Month
55.2°F
(12.9°C)
53.4°F
(11.9°C)
1.8°F
(1.0°C)
113th Coolest
Coolest since:
1976
15th Warmest
Warmest since:
1931
Ties: 1973
Jul–Dec 2018
6-Month
58.3°F
(14.6°C)
56.7°F
(13.7°C)
1.6°F
(0.9°C)
111th Coolest
Coolest since:
1976
17th Warmest
Warmest since:
1931
Ties: 1913, 1973, 2005
Jun–Dec 2018
7-Month
60.4°F
(15.8°C)
58.7°F
(14.8°C)
1.7°F
(1.0°C)
114th Coolest
Coolest since:
1976
14th Warmest
Warmest since:
1931
Ties: 1999, 2019, 2020
May–Dec 2018
8-Month
61.5°F
(16.4°C)
59.0°F
(15.0°C)
2.5°F
(1.4°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
1931
Ties: 1900, 2021
Apr–Dec 2018
9-Month
59.9°F
(15.5°C)
58.2°F
(14.6°C)
1.7°F
(0.9°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
2015
Ties: 2010
Mar–Dec 2018
10-Month
57.8°F
(14.3°C)
56.5°F
(13.6°C)
1.3°F
(0.7°C)
105th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
2016
Ties: 1999, 2004, 2017
Feb–Dec 2018
11-Month
56.1°F
(13.4°C)
54.2°F
(12.3°C)
1.9°F
(1.1°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2012
Ties: 2019
Jan–Dec 2018
12-Month
53.7°F
(12.1°C)
52.2°F
(11.2°C)
1.5°F
(0.9°C)
106th Coolest
Coolest since:
1917
22nd Warmest
Warmest since:
2012
Ties: 1911, 2001
Jul 2017–Dec 2018
18-Month
54.9°F
(12.7°C)
53.7°F
(12.1°C)
1.2°F
(0.6°C)
107th Coolest
Coolest since:
1904, 1917
20th Warmest
Warmest since:
2012, 2016
Ties: 1953, 1954
Jan 2017–Dec 2018
24-Month
54.2°F
(12.3°C)
52.2°F
(11.2°C)
2.0°F
(1.1°C)
121st Coolest
Coolest since:
1979
6th Warmest
Warmest since:
2017
Ties: 2021
Jan 2016–Dec 2018
36-Month
54.4°F
(12.4°C)
52.2°F
(11.2°C)
2.2°F
(1.2°C)
125th Coolest
Coolest since:
1980
1st Warmest
Warmest to Date
2018
Jan 2015–Dec 2018
48-Month
54.2°F
(12.3°C)
52.2°F
(11.2°C)
2.0°F
(1.1°C)
123rd Coolest
Coolest since:
1979
2nd Warmest
Warmest to Date
2019
Jan 2014–Dec 2018
60-Month
53.5°F
(11.9°C)
52.2°F
(11.2°C)
1.3°F
(0.7°C)
119th Coolest
Coolest since:
1980
5th Warmest
Warmest since:
2020
Ties: 1934

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