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 2019

View Period (Months):
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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 2019
1-Month
31.0°F
(-0.6°C)
28.1°F
(-2.2°C)
2.9°F
(1.6°C)
106th Coolest
Coolest since:
1990
23rd Warmest
Warmest since:
1917
Ties: 1966, 1999
Nov–Dec 2019
2-Month
33.9°F
(1.1°C)
31.3°F
(-0.4°C)
2.6°F
(1.5°C)
108th Coolest
Coolest since:
1985
21st Warmest
Warmest since:
1917
Oct–Dec 2019
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, 1964, 2007
Sep–Dec 2019
4-Month
40.9°F
(4.9°C)
41.1°F
(5.1°C)
-0.2°F
(-0.2°C)
54th Coolest
Coolest since:
1985
75th Warmest
Warmest since:
1917
Ties: 2005, 2013
Aug–Dec 2019
5-Month
45.9°F
(7.7°C)
45.5°F
(7.5°C)
0.4°F
(0.2°C)
74th Coolest
Coolest since:
1985
55th Warmest
Warmest since:
1917, 2014
Ties: 1907, 1923, 1965, 1976, 1977
Jul–Dec 2019
6-Month
49.0°F
(9.4°C)
48.6°F
(9.2°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1985
58th Warmest
Warmest since:
2014
Ties: 1925, 1941, 1960, 1976, 1996
Jun–Dec 2019
7-Month
50.3°F
(10.2°C)
49.8°F
(9.9°C)
0.5°F
(0.3°C)
80th Coolest
Coolest since:
1916
49th Warmest
Warmest since:
2021
Ties: 1926, 1960, 1973, 1986, 1994
May–Dec 2019
8-Month
50.5°F
(10.3°C)
49.8°F
(9.9°C)
0.7°F
(0.4°C)
90th Coolest
Coolest since:
1916
39th Warmest
Warmest since:
2021
Ties: 1925, 1973, 1989, 2008
Apr–Dec 2019
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, 1938, 1967, 1997
Mar–Dec 2019
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: 1938, 1967, 1974
Feb–Dec 2019
11-Month
46.2°F
(7.9°C)
46.2°F
(7.9°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1955
71st Warmest
Warmest since:
2015
Ties: 1907, 1918, 1930, 1931, 1936, 1968, 1969, 1989, 2008
Jan–Dec 2019
12-Month
44.9°F
(7.2°C)
44.4°F
(6.9°C)
0.5°F
(0.3°C)
81st Coolest
Coolest since:
1916
48th Warmest
Warmest since:
2015
Ties: 1904, 1906, 1915, 1973, 1980, 1983, 2009
Jul 2018–Dec 2019
18-Month
46.6°F
(8.1°C)
45.8°F
(7.7°C)
0.8°F
(0.4°C)
92nd Coolest
Coolest since:
1985
36th Warmest
Warmest since:
2015
Ties: 1961, 1963, 1968, 1980, 1997
Jan 2018–Dec 2019
24-Month
45.6°F
(7.6°C)
44.4°F
(6.9°C)
1.2°F
(0.7°C)
102nd Coolest
Coolest since:
1917
26th Warmest
Warmest since:
2015
Ties: 1939, 1959
Jan 2017–Dec 2019
36-Month
45.7°F
(7.6°C)
44.4°F
(6.9°C)
1.3°F
(0.7°C)
109th Coolest
Coolest since:
1913
18th Warmest
Warmest since:
2016
Ties: 1989, 1999, 2000
Jan 2016–Dec 2019
48-Month
46.0°F
(7.8°C)
44.4°F
(6.9°C)
1.6°F
(0.9°C)
118th Coolest
Coolest since:
1913, 1914, 1919
8th Warmest
Warmest since:
2016, 2017
Ties: 2005, 2007, 2022
Jan 2015–Dec 2019
60-Month
46.5°F
(8.1°C)
44.4°F
(6.9°C)
2.1°F
(1.2°C)
121st Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2018

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