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 1917

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1917
1-Month
22.3°F
(-5.4°C)
32.4°F
(0.2°C)
-10.1°F
(-5.6°C)
3rd Coolest
Coolest since:
1989
126th Warmest
Warmest since:
2015
Nov–Dec 1917
2-Month
31.0°F
(-0.6°C)
37.3°F
(2.9°C)
-6.3°F
(-3.5°C)
2nd Coolest
Coolest since:
1976
127th Warmest
Warmest since:
2015
Oct–Dec 1917
3-Month
36.4°F
(2.4°C)
42.9°F
(6.1°C)
-6.5°F
(-3.7°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2015
Sep–Dec 1917
4-Month
43.1°F
(6.2°C)
48.7°F
(9.3°C)
-5.6°F
(-3.1°C)
2nd Coolest
Coolest since:
1976
127th Warmest
Warmest since:
1931
Aug–Dec 1917
5-Month
48.7°F
(9.3°C)
53.4°F
(11.9°C)
-4.7°F
(-2.6°C)
2nd Coolest
Coolest since:
1976
127th Warmest
Warmest since:
1931
Jul–Dec 1917
6-Month
52.7°F
(11.5°C)
56.8°F
(13.8°C)
-4.1°F
(-2.3°C)
2nd Coolest
Coolest since:
1976
127th Warmest
Warmest since:
1931
Jun–Dec 1917
7-Month
54.8°F
(12.7°C)
58.7°F
(14.8°C)
-3.9°F
(-2.1°C)
2nd Coolest
Coolest since:
1976
127th Warmest
Warmest since:
1931
May–Dec 1917
8-Month
54.9°F
(12.7°C)
59.1°F
(15.1°C)
-4.2°F
(-2.4°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
1931
Apr–Dec 1917
9-Month
54.4°F
(12.4°C)
58.2°F
(14.6°C)
-3.8°F
(-2.2°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2015
Mar–Dec 1917
10-Month
53.1°F
(11.7°C)
56.5°F
(13.6°C)
-3.4°F
(-1.9°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2016
Feb–Dec 1917
11-Month
50.8°F
(10.4°C)
54.2°F
(12.3°C)
-3.4°F
(-1.9°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2012
Jan–Dec 1917
12-Month
49.1°F
(9.5°C)
52.2°F
(11.2°C)
-3.1°F
(-1.7°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2012
Jul 1916–Dec 1917
18-Month
51.7°F
(10.9°C)
53.7°F
(12.1°C)
-2.0°F
(-1.2°C)
1st Coolest
Coolest since:
1904, 1917
127th Warmest
Warmest since:
2012, 2016
Ties: 1904
Jan 1916–Dec 1917
24-Month
50.5°F
(10.3°C)
52.2°F
(11.2°C)
-1.7°F
(-0.9°C)
2nd Coolest
Coolest since:
1979
126th Warmest
Warmest since:
2017
Jan 1915–Dec 1917
36-Month
50.9°F
(10.5°C)
52.1°F
(11.2°C)
-1.2°F
(-0.7°C)
4th Coolest
Coolest since:
1980
123rd Warmest
Warmest since:
2018
Jan 1914–Dec 1917
48-Month
51.2°F
(10.7°C)
52.2°F
(11.2°C)
-1.0°F
(-0.5°C)
6th Coolest
Coolest since:
1979
120th Warmest
Warmest since:
2019
Ties: 1904, 1905, 1918, 1982
Jan 1913–Dec 1917
60-Month
51.6°F
(10.9°C)
52.1°F
(11.2°C)
-0.5°F
(-0.3°C)
22nd Coolest
Coolest since:
1980
103rd Warmest
Warmest since:
2020
Ties: 1904, 1919, 1928, 1961, 1965

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