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 1938

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1938
1-Month
30.1°F
(-1.1°C)
28.1°F
(-2.2°C)
2.0°F
(1.1°C)
91st Coolest
Coolest since:
1990
38th Warmest
Warmest since:
1917
Ties: 1907, 1942
Nov–Dec 1938
2-Month
30.4°F
(-0.9°C)
31.3°F
(-0.4°C)
-0.9°F
(-0.5°C)
37th Coolest
Coolest since:
1985
92nd Warmest
Warmest since:
1917
Ties: 1964
Oct–Dec 1938
3-Month
35.9°F
(2.2°C)
36.1°F
(2.3°C)
-0.2°F
(-0.1°C)
45th Coolest
Coolest since:
1985
84th Warmest
Warmest since:
1917
Ties: 1959, 1993
Sep–Dec 1938
4-Month
42.1°F
(5.6°C)
41.1°F
(5.1°C)
1.0°F
(0.5°C)
90th Coolest
Coolest since:
1985
39th Warmest
Warmest since:
1917
Ties: 1901, 1906, 1942, 2022
Aug–Dec 1938
5-Month
46.0°F
(7.8°C)
45.4°F
(7.4°C)
0.6°F
(0.4°C)
79th Coolest
Coolest since:
1985
50th Warmest
Warmest since:
1917, 2014
Ties: 1973, 1986, 2006, 2013
Jul–Dec 1938
6-Month
49.3°F
(9.6°C)
48.6°F
(9.2°C)
0.7°F
(0.4°C)
84th Coolest
Coolest since:
1985
45th Warmest
Warmest since:
2014
Ties: 1943, 1980, 1989, 2016
Jun–Dec 1938
7-Month
50.7°F
(10.4°C)
49.8°F
(9.9°C)
0.9°F
(0.5°C)
94th Coolest
Coolest since:
1916
35th Warmest
Warmest since:
2021
Ties: 1989
May–Dec 1938
8-Month
50.6°F
(10.3°C)
49.8°F
(9.9°C)
0.8°F
(0.4°C)
94th Coolest
Coolest since:
1916
35th Warmest
Warmest since:
2021
Ties: 1963, 1994, 1999
Apr–Dec 1938
9-Month
49.8°F
(9.9°C)
49.0°F
(9.4°C)
0.8°F
(0.5°C)
94th Coolest
Coolest since:
1916
35th Warmest
Warmest since:
2021
Ties: 1906, 1933, 1967, 1997, 2019
Mar–Dec 1938
10-Month
48.3°F
(9.1°C)
47.7°F
(8.7°C)
0.6°F
(0.4°C)
87th Coolest
Coolest since:
1916
42nd Warmest
Warmest since:
2015
Ties: 1967, 1974, 2019
Feb–Dec 1938
11-Month
46.7°F
(8.2°C)
46.1°F
(7.8°C)
0.6°F
(0.4°C)
86th Coolest
Coolest since:
1955
43rd Warmest
Warmest since:
2015
Ties: 1915, 1973, 1977, 1980, 1990, 2002
Jan–Dec 1938
12-Month
45.2°F
(7.3°C)
44.4°F
(6.9°C)
0.8°F
(0.4°C)
87th Coolest
Coolest since:
1916
42nd Warmest
Warmest since:
2015
Ties: 1947, 2002, 2010
Jul 1937–Dec 1938
18-Month
47.0°F
(8.3°C)
45.8°F
(7.7°C)
1.2°F
(0.6°C)
102nd Coolest
Coolest since:
1985
26th Warmest
Warmest since:
2015
Ties: 1918, 1926, 1981, 2000, 2017
Jan 1937–Dec 1938
24-Month
44.5°F
(6.9°C)
44.4°F
(6.9°C)
0.1°F
(0.0°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2015
Ties: 1905, 1907, 1977, 1978
Jan 1936–Dec 1938
36-Month
44.6°F
(7.0°C)
44.5°F
(6.9°C)
0.1°F
(0.1°C)
66th Coolest
Coolest since:
1913
61st Warmest
Warmest since:
2016
Ties: 1906, 1943, 1974, 1980
Jan 1935–Dec 1938
48-Month
44.3°F
(6.8°C)
44.4°F
(6.9°C)
-0.1°F
(-0.1°C)
47th Coolest
Coolest since:
1913, 1914, 1919
79th Warmest
Warmest since:
2016, 2017
Ties: 1929, 1953, 1965, 1971, 1973, 1975
Jan 1934–Dec 1938
60-Month
45.1°F
(7.3°C)
44.4°F
(6.9°C)
0.7°F
(0.4°C)
90th Coolest
Coolest since:
1913
35th Warmest
Warmest to Date
2018
Ties: 1997

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