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.

Pacific Northwest Basin

Average Temperature Rankings, December 1988

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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
(1895-2022)
Warmest/Coolest
Since
Record
December 1988
1-Month
27.5°F
(-2.5°C)
28.1°F
(-2.2°C)
-0.6°F
(-0.3°C)
44th Coolest
Coolest since:
1990
85th Warmest
Warmest since:
1917
Ties: 1960, 2007
Nov–Dec 1988
2-Month
31.2°F
(-0.4°C)
31.3°F
(-0.4°C)
-0.1°F
(0.0°C)
56th Coolest
Coolest since:
1985
73rd Warmest
Warmest since:
1917
Ties: 2011
Oct–Dec 1988
3-Month
38.3°F
(3.5°C)
36.1°F
(2.3°C)
2.2°F
(1.2°C)
112th Coolest
Coolest since:
1985
17th Warmest
Warmest since:
1917
Sep–Dec 1988
4-Month
42.8°F
(6.0°C)
41.1°F
(5.1°C)
1.7°F
(0.9°C)
109th Coolest
Coolest since:
1985
20th Warmest
Warmest since:
1917
Ties: 1958, 1974, 2001
Aug–Dec 1988
5-Month
47.0°F
(8.3°C)
45.5°F
(7.5°C)
1.5°F
(0.8°C)
101st Coolest
Coolest since:
1985
28th Warmest
Warmest since:
1917, 2014
Ties: 1962, 2011
Jul–Dec 1988
6-Month
50.0°F
(10.0°C)
48.6°F
(9.2°C)
1.4°F
(0.8°C)
106th Coolest
Coolest since:
1985
23rd Warmest
Warmest since:
2014
Ties: 1904, 1906, 1950, 1979
Jun–Dec 1988
7-Month
51.3°F
(10.7°C)
49.7°F
(9.8°C)
1.6°F
(0.9°C)
112th Coolest
Coolest since:
1916
17th Warmest
Warmest since:
2021
Ties: 1940, 2006
May–Dec 1988
8-Month
51.2°F
(10.7°C)
49.8°F
(9.9°C)
1.4°F
(0.8°C)
109th Coolest
Coolest since:
1916
20th Warmest
Warmest since:
2021
Ties: 1979, 2004
Apr–Dec 1988
9-Month
50.5°F
(10.3°C)
49.0°F
(9.4°C)
1.5°F
(0.9°C)
112th Coolest
Coolest since:
1916
17th Warmest
Warmest since:
2021
Mar–Dec 1988
10-Month
49.2°F
(9.6°C)
47.7°F
(8.7°C)
1.5°F
(0.9°C)
112th Coolest
Coolest since:
1916
17th Warmest
Warmest since:
2015
Ties: 2001, 2007
Feb–Dec 1988
11-Month
47.8°F
(8.8°C)
46.2°F
(7.9°C)
1.6°F
(0.9°C)
116th Coolest
Coolest since:
1955
13th Warmest
Warmest since:
2015
Ties: 1926, 2007, 2020
Jan–Dec 1988
12-Month
45.9°F
(7.7°C)
44.4°F
(6.9°C)
1.5°F
(0.8°C)
108th Coolest
Coolest since:
1916
21st Warmest
Warmest since:
2015
Ties: 1981, 1986
Jul 1987–Dec 1988
18-Month
47.2°F
(8.4°C)
45.9°F
(7.7°C)
1.3°F
(0.7°C)
110th Coolest
Coolest since:
1985
18th Warmest
Warmest since:
2015
Ties: 1999
Jan 1987–Dec 1988
24-Month
46.2°F
(7.9°C)
44.5°F
(6.9°C)
1.7°F
(1.0°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Ties: 1940, 1987, 1992
Jan 1986–Dec 1988
36-Month
46.1°F
(7.8°C)
44.5°F
(6.9°C)
1.6°F
(0.9°C)
117th Coolest
Coolest since:
1913
10th Warmest
Warmest since:
2016
Ties: 1941
Jan 1985–Dec 1988
48-Month
45.1°F
(7.3°C)
44.4°F
(6.9°C)
0.7°F
(0.4°C)
91st Coolest
Coolest since:
1913, 1914, 1919
35th Warmest
Warmest since:
2016, 2017
Ties: 1934, 1936, 1937, 1943, 1968, 2010, 2012
Jan 1984–Dec 1988
60-Month
44.8°F
(7.1°C)
44.5°F
(6.9°C)
0.3°F
(0.2°C)
78th Coolest
Coolest since:
1913
47th Warmest
Warmest since:
2018
Ties: 1928, 1934, 1935, 1936, 1967

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