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 1955

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1955
1-Month
28.0°F
(-2.2°C)
28.1°F
(-2.2°C)
-0.1°F
(0.0°C)
57th Coolest
Coolest since:
1990
72nd Warmest
Warmest since:
1917
Ties: 1902, 1949
Nov–Dec 1955
2-Month
28.8°F
(-1.8°C)
31.3°F
(-0.4°C)
-2.5°F
(-1.4°C)
15th Coolest
Coolest since:
1985
114th Warmest
Warmest since:
1917
Ties: 1909, 1935, 1951, 1992, 1994
Oct–Dec 1955
3-Month
34.6°F
(1.4°C)
36.2°F
(2.3°C)
-1.6°F
(-0.9°C)
24th Coolest
Coolest since:
1985
105th Warmest
Warmest since:
1917
Ties: 2000
Sep–Dec 1955
4-Month
39.8°F
(4.3°C)
41.1°F
(5.1°C)
-1.3°F
(-0.8°C)
24th Coolest
Coolest since:
1985
105th Warmest
Warmest since:
1917
Ties: 2000
Aug–Dec 1955
5-Month
44.5°F
(6.9°C)
45.5°F
(7.5°C)
-1.0°F
(-0.6°C)
23rd Coolest
Coolest since:
1985
106th Warmest
Warmest since:
1917, 2014
Ties: 1896, 1927, 1928, 1946, 1959, 1961, 1982
Jul–Dec 1955
6-Month
47.4°F
(8.6°C)
48.7°F
(9.3°C)
-1.3°F
(-0.7°C)
17th Coolest
Coolest since:
1985
112th Warmest
Warmest since:
2014
Jun–Dec 1955
7-Month
48.7°F
(9.3°C)
49.8°F
(9.9°C)
-1.1°F
(-0.6°C)
19th Coolest
Coolest since:
1916
110th Warmest
Warmest since:
2021
Ties: 1905, 1930, 1964
May–Dec 1955
8-Month
48.5°F
(9.2°C)
49.8°F
(9.9°C)
-1.3°F
(-0.7°C)
11th Coolest
Coolest since:
1916
118th Warmest
Warmest since:
2021
Ties: 1899
Apr–Dec 1955
9-Month
47.3°F
(8.5°C)
49.0°F
(9.4°C)
-1.7°F
(-0.9°C)
5th Coolest
Coolest since:
1916
124th Warmest
Warmest since:
2021
Ties: 1912, 1948
Mar–Dec 1955
10-Month
45.5°F
(7.5°C)
47.7°F
(8.7°C)
-2.2°F
(-1.2°C)
2nd Coolest
Coolest since:
1916
127th Warmest
Warmest since:
2015
Feb–Dec 1955
11-Month
43.8°F
(6.6°C)
46.2°F
(7.9°C)
-2.4°F
(-1.3°C)
1st Coolest
Coolest since:
1955
128th Warmest
Warmest since:
2015
Jan–Dec 1955
12-Month
42.2°F
(5.7°C)
44.5°F
(6.9°C)
-2.3°F
(-1.2°C)
3rd Coolest
Coolest since:
1916
126th Warmest
Warmest since:
2015
Jul 1954–Dec 1955
18-Month
44.2°F
(6.8°C)
45.8°F
(7.7°C)
-1.6°F
(-0.9°C)
4th Coolest
Coolest since:
1985
124th Warmest
Warmest since:
2015
Ties: 1912, 1917
Jan 1954–Dec 1955
24-Month
43.2°F
(6.2°C)
44.4°F
(6.9°C)
-1.2°F
(-0.7°C)
8th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2015
Ties: 1899, 1903, 1916, 1923
Jan 1953–Dec 1955
36-Month
44.1°F
(6.7°C)
44.5°F
(6.9°C)
-0.4°F
(-0.2°C)
37th Coolest
Coolest since:
1913
90th Warmest
Warmest since:
2016
Ties: 1915, 1933, 1937, 1944, 1948, 1971
Jan 1952–Dec 1955
48-Month
44.1°F
(6.7°C)
44.5°F
(6.9°C)
-0.4°F
(-0.2°C)
37th Coolest
Coolest since:
1913, 1914, 1919
89th Warmest
Warmest since:
2016, 2017
Ties: 1972, 1986
Jan 1951–Dec 1955
60-Month
44.0°F
(6.7°C)
44.5°F
(6.9°C)
-0.5°F
(-0.2°C)
28th Coolest
Coolest since:
1913
97th Warmest
Warmest since:
2018
Ties: 1901, 1909, 1956, 1957

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