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 1964

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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 1964
1-Month
27.4°F
(-2.6°C)
28.1°F
(-2.2°C)
-0.7°F
(-0.4°C)
42nd Coolest
Coolest since:
1990
87th Warmest
Warmest since:
1917
Ties: 1926
Nov–Dec 1964
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: 1938
Oct–Dec 1964
3-Month
36.0°F
(2.2°C)
36.2°F
(2.3°C)
-0.2°F
(-0.1°C)
48th Coolest
Coolest since:
1985
81st Warmest
Warmest since:
1917
Ties: 1915, 2007, 2019
Sep–Dec 1964
4-Month
40.3°F
(4.6°C)
41.1°F
(5.1°C)
-0.8°F
(-0.5°C)
33rd Coolest
Coolest since:
1985
96th Warmest
Warmest since:
1917
Ties: 1921, 1959, 1992
Aug–Dec 1964
5-Month
44.3°F
(6.8°C)
45.5°F
(7.5°C)
-1.2°F
(-0.7°C)
19th Coolest
Coolest since:
1985
110th Warmest
Warmest since:
1917, 2014
Ties: 1909, 1968, 1971
Jul–Dec 1964
6-Month
47.6°F
(8.7°C)
48.6°F
(9.2°C)
-1.0°F
(-0.5°C)
22nd Coolest
Coolest since:
1985
107th Warmest
Warmest since:
2014
Ties: 1905, 1930, 1932, 1971
Jun–Dec 1964
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, 1955
May–Dec 1964
8-Month
48.6°F
(9.2°C)
49.8°F
(9.9°C)
-1.2°F
(-0.7°C)
13th Coolest
Coolest since:
1916
116th Warmest
Warmest since:
2021
Ties: 1902, 1905, 1930
Apr–Dec 1964
9-Month
47.6°F
(8.7°C)
49.0°F
(9.4°C)
-1.4°F
(-0.7°C)
11th Coolest
Coolest since:
1916
118th Warmest
Warmest since:
2021
Ties: 1899
Mar–Dec 1964
10-Month
46.0°F
(7.8°C)
47.6°F
(8.7°C)
-1.6°F
(-0.9°C)
6th Coolest
Coolest since:
1916
123rd Warmest
Warmest since:
2015
Ties: 1911
Feb–Dec 1964
11-Month
44.4°F
(6.9°C)
46.1°F
(7.8°C)
-1.7°F
(-0.9°C)
7th Coolest
Coolest since:
1955
122nd Warmest
Warmest since:
2015
Ties: 1903
Jan–Dec 1964
12-Month
43.0°F
(6.1°C)
44.4°F
(6.9°C)
-1.4°F
(-0.8°C)
11th Coolest
Coolest since:
1916
118th Warmest
Warmest since:
2015
Ties: 1903
Jul 1963–Dec 1964
18-Month
45.2°F
(7.3°C)
45.8°F
(7.7°C)
-0.6°F
(-0.4°C)
24th Coolest
Coolest since:
1985
104th Warmest
Warmest since:
2015
Ties: 1952, 1972, 1979
Jan 1963–Dec 1964
24-Month
44.1°F
(6.7°C)
44.5°F
(6.9°C)
-0.4°F
(-0.2°C)
38th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2015
Ties: 1900, 1919, 1928, 1931, 1932, 1943, 1944, 1971, 1983, 1984
Jan 1962–Dec 1964
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, 1973, 1976, 1977
Jan 1961–Dec 1964
48-Month
44.5°F
(6.9°C)
44.4°F
(6.9°C)
0.1°F
(0.0°C)
59th Coolest
Coolest since:
1913, 1914, 1919
67th Warmest
Warmest since:
2016, 2017
Ties: 1907, 1944, 1947, 1966, 1979, 1987
Jan 1960–Dec 1964
60-Month
44.4°F
(6.9°C)
44.4°F
(6.9°C)
0.0°F
(0.0°C)
52nd Coolest
Coolest since:
1913
73rd Warmest
Warmest since:
2018
Ties: 1908, 1926, 1947, 1974

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