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 1977

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1977
1-Month
30.8°F
(-0.7°C)
28.1°F
(-2.2°C)
2.7°F
(1.5°C)
102nd Coolest
Coolest since:
1990
27th Warmest
Warmest since:
1917
Ties: 1941, 1981, 2020
Nov–Dec 1977
2-Month
32.2°F
(0.1°C)
31.3°F
(-0.4°C)
0.9°F
(0.5°C)
80th Coolest
Coolest since:
1985
49th Warmest
Warmest since:
1917
Ties: 1957, 1975
Oct–Dec 1977
3-Month
36.7°F
(2.6°C)
36.2°F
(2.3°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1985
55th Warmest
Warmest since:
1917
Ties: 1940
Sep–Dec 1977
4-Month
41.1°F
(5.1°C)
41.1°F
(5.1°C)
0.0°F
(0.0°C)
59th Coolest
Coolest since:
1985
70th Warmest
Warmest since:
1917
Ties: 1936
Aug–Dec 1977
5-Month
45.9°F
(7.7°C)
45.4°F
(7.4°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1985
55th Warmest
Warmest since:
1917, 2014
Ties: 1907, 1923, 1965, 1976, 2019
Jul–Dec 1977
6-Month
48.8°F
(9.3°C)
48.6°F
(9.2°C)
0.2°F
(0.1°C)
58th Coolest
Coolest since:
1985
71st Warmest
Warmest since:
2014
Ties: 1907, 1975, 2009
Jun–Dec 1977
7-Month
50.5°F
(10.3°C)
49.8°F
(9.9°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1916
40th Warmest
Warmest since:
2021
Ties: 1906, 1918, 1962, 1981, 1997, 2008
May–Dec 1977
8-Month
50.0°F
(10.0°C)
49.8°F
(9.9°C)
0.2°F
(0.1°C)
60th Coolest
Coolest since:
1916
69th Warmest
Warmest since:
2021
Ties: 1910, 1929, 1942, 1960, 1980
Apr–Dec 1977
9-Month
49.5°F
(9.7°C)
49.0°F
(9.4°C)
0.5°F
(0.3°C)
80th Coolest
Coolest since:
1916
49th Warmest
Warmest since:
2021
Ties: 1941, 1963, 1973, 1980, 1990, 1995, 1999
Mar–Dec 1977
10-Month
48.0°F
(8.9°C)
47.7°F
(8.7°C)
0.3°F
(0.2°C)
75th Coolest
Coolest since:
1916
54th Warmest
Warmest since:
2015
Ties: 1906, 1915, 1918, 1953, 1957, 1962, 1969, 1980, 1991
Feb–Dec 1977
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, 1938, 1973, 1980, 1990, 2002
Jan–Dec 1977
12-Month
44.8°F
(7.1°C)
44.5°F
(6.9°C)
0.3°F
(0.2°C)
73rd Coolest
Coolest since:
1916
56th Warmest
Warmest since:
2015
Ties: 1918, 1931, 1996
Jul 1976–Dec 1977
18-Month
46.2°F
(7.9°C)
45.9°F
(7.7°C)
0.3°F
(0.2°C)
75th Coolest
Coolest since:
1985
53rd Warmest
Warmest since:
2015
Ties: 1900, 2008
Jan 1976–Dec 1977
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, 1938, 1978
Jan 1975–Dec 1977
36-Month
44.2°F
(6.8°C)
44.5°F
(6.9°C)
-0.3°F
(-0.1°C)
44th Coolest
Coolest since:
1913
83rd Warmest
Warmest since:
2016
Ties: 1901, 1945, 1964, 1973, 1976
Jan 1974–Dec 1977
48-Month
44.4°F
(6.9°C)
44.5°F
(6.9°C)
-0.1°F
(0.0°C)
54th Coolest
Coolest since:
1913, 1914, 1919
72nd Warmest
Warmest since:
2016, 2017
Ties: 1954, 1974, 1976, 1984
Jan 1973–Dec 1977
60-Month
44.5°F
(6.9°C)
44.4°F
(6.9°C)
0.1°F
(0.0°C)
57th Coolest
Coolest since:
1913
68th Warmest
Warmest since:
2018
Ties: 1945, 1965, 1966, 1984, 1987

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