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 1978

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1978
1-Month
22.5°F
(-5.3°C)
28.1°F
(-2.2°C)
-5.6°F
(-3.1°C)
11th Coolest
Coolest since:
1990
118th Warmest
Warmest since:
1917
Nov–Dec 1978
2-Month
26.5°F
(-3.1°C)
31.3°F
(-0.4°C)
-4.8°F
(-2.7°C)
4th Coolest
Coolest since:
1985
125th Warmest
Warmest since:
1917
Oct–Dec 1978
3-Month
33.3°F
(0.7°C)
36.1°F
(2.3°C)
-2.8°F
(-1.6°C)
9th Coolest
Coolest since:
1985
120th Warmest
Warmest since:
1917
Sep–Dec 1978
4-Month
38.5°F
(3.6°C)
41.0°F
(5.0°C)
-2.5°F
(-1.4°C)
6th Coolest
Coolest since:
1985
123rd Warmest
Warmest since:
1917
Ties: 1911, 1924
Aug–Dec 1978
5-Month
43.2°F
(6.2°C)
45.5°F
(7.5°C)
-2.3°F
(-1.3°C)
6th Coolest
Coolest since:
1985
123rd Warmest
Warmest since:
1917, 2014
Ties: 1912, 1924
Jul–Dec 1978
6-Month
46.6°F
(8.1°C)
48.6°F
(9.2°C)
-2.0°F
(-1.1°C)
7th Coolest
Coolest since:
1985
122nd Warmest
Warmest since:
2014
Ties: 1924
Jun–Dec 1978
7-Month
48.2°F
(9.0°C)
49.7°F
(9.8°C)
-1.5°F
(-0.8°C)
11th Coolest
Coolest since:
1916
118th Warmest
Warmest since:
2021
May–Dec 1978
8-Month
48.1°F
(8.9°C)
49.8°F
(9.9°C)
-1.7°F
(-1.0°C)
6th Coolest
Coolest since:
1916
123rd Warmest
Warmest since:
2021
Ties: 1984
Apr–Dec 1978
9-Month
47.5°F
(8.6°C)
49.0°F
(9.4°C)
-1.5°F
(-0.8°C)
9th Coolest
Coolest since:
1916
120th Warmest
Warmest since:
2021
Ties: 1919
Mar–Dec 1978
10-Month
46.7°F
(8.2°C)
47.6°F
(8.7°C)
-0.9°F
(-0.5°C)
23rd Coolest
Coolest since:
1916
106th Warmest
Warmest since:
2015
Ties: 1913, 1924, 1927
Feb–Dec 1978
11-Month
45.5°F
(7.5°C)
46.1°F
(7.8°C)
-0.6°F
(-0.3°C)
33rd Coolest
Coolest since:
1955
96th Warmest
Warmest since:
2015
Ties: 1917, 2011
Jan–Dec 1978
12-Month
44.3°F
(6.8°C)
44.5°F
(6.9°C)
-0.2°F
(-0.1°C)
50th Coolest
Coolest since:
1916
79th Warmest
Warmest since:
2015
Ties: 1901, 1954, 1969, 1976
Jul 1977–Dec 1978
18-Month
45.8°F
(7.7°C)
45.9°F
(7.7°C)
-0.1°F
(0.0°C)
58th Coolest
Coolest since:
1985
70th Warmest
Warmest since:
2015
Ties: 1906, 1915, 1935, 1944, 1946, 1970, 1976, 2011
Jan 1977–Dec 1978
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, 1977
Jan 1976–Dec 1978
36-Month
44.4°F
(6.9°C)
44.4°F
(6.9°C)
0.0°F
(0.0°C)
55th Coolest
Coolest since:
1913
72nd Warmest
Warmest since:
2016
Ties: 1902, 1953, 1970, 1975
Jan 1975–Dec 1978
48-Month
44.2°F
(6.8°C)
44.4°F
(6.9°C)
-0.2°F
(-0.1°C)
40th Coolest
Coolest since:
1913, 1914, 1919
86th Warmest
Warmest since:
2016, 2017
Ties: 1906, 1908, 1945, 1946, 1948, 1958
Jan 1974–Dec 1978
60-Month
44.3°F
(6.8°C)
44.4°F
(6.9°C)
-0.1°F
(-0.1°C)
47th Coolest
Coolest since:
1913
78th Warmest
Warmest since:
2018
Ties: 1954, 1973, 1976, 1979

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