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 2010

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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 2010
1-Month
29.9°F
(-1.2°C)
28.1°F
(-2.2°C)
1.8°F
(1.0°C)
87th Coolest
Coolest since:
1990
42nd Warmest
Warmest since:
1917
Nov–Dec 2010
2-Month
31.6°F
(-0.2°C)
31.3°F
(-0.4°C)
0.3°F
(0.2°C)
63rd Coolest
Coolest since:
1985
66th Warmest
Warmest since:
1917
Ties: 2007
Oct–Dec 2010
3-Month
37.1°F
(2.8°C)
36.1°F
(2.3°C)
1.0°F
(0.5°C)
88th Coolest
Coolest since:
1985
41st Warmest
Warmest since:
1917
Ties: 1942, 1943, 1954, 1973, 1986, 2018
Sep–Dec 2010
4-Month
42.0°F
(5.6°C)
41.0°F
(5.0°C)
1.0°F
(0.6°C)
85th Coolest
Coolest since:
1985
44th Warmest
Warmest since:
1917
Ties: 1940, 1952, 2008
Aug–Dec 2010
5-Month
46.2°F
(7.9°C)
45.5°F
(7.5°C)
0.7°F
(0.4°C)
83rd Coolest
Coolest since:
1985
46th Warmest
Warmest since:
1917, 2014
Ties: 1989
Jul–Dec 2010
6-Month
49.2°F
(9.6°C)
48.7°F
(9.3°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1985
50th Warmest
Warmest since:
2014
Ties: 1936, 1952, 1973, 1994, 2005
Jun–Dec 2010
7-Month
50.0°F
(10.0°C)
49.7°F
(9.8°C)
0.3°F
(0.2°C)
58th Coolest
Coolest since:
1916
71st Warmest
Warmest since:
2021
Ties: 1922, 1929, 1949, 1965, 1969, 1980, 1990, 2005
May–Dec 2010
8-Month
49.5°F
(9.7°C)
49.8°F
(9.9°C)
-0.3°F
(-0.2°C)
40th Coolest
Coolest since:
1916
89th Warmest
Warmest since:
2021
Ties: 1921, 1943, 1970
Apr–Dec 2010
9-Month
48.6°F
(9.2°C)
49.0°F
(9.4°C)
-0.4°F
(-0.2°C)
41st Coolest
Coolest since:
1916
88th Warmest
Warmest since:
2021
Ties: 1922, 1945
Mar–Dec 2010
10-Month
47.6°F
(8.7°C)
47.7°F
(8.7°C)
-0.1°F
(0.0°C)
54th Coolest
Coolest since:
1916
75th Warmest
Warmest since:
2015
Ties: 1901, 1928, 2008
Feb–Dec 2010
11-Month
46.4°F
(8.0°C)
46.2°F
(7.9°C)
0.2°F
(0.1°C)
74th Coolest
Coolest since:
1955
55th Warmest
Warmest since:
2015
Ties: 1906, 1949, 1962
Jan–Dec 2010
12-Month
45.2°F
(7.3°C)
44.4°F
(6.9°C)
0.8°F
(0.4°C)
87th Coolest
Coolest since:
1916
42nd Warmest
Warmest since:
2015
Ties: 1938, 1947, 2002
Jul 2009–Dec 2010
18-Month
46.4°F
(8.0°C)
45.8°F
(7.7°C)
0.6°F
(0.3°C)
81st Coolest
Coolest since:
1985
47th Warmest
Warmest since:
2015
Ties: 1954, 1974, 1989, 1994, 1996
Jan 2009–Dec 2010
24-Month
45.1°F
(7.3°C)
44.5°F
(6.9°C)
0.6°F
(0.4°C)
86th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
2015
Ties: 1997
Jan 2008–Dec 2010
36-Month
44.9°F
(7.2°C)
44.5°F
(6.9°C)
0.4°F
(0.3°C)
78th Coolest
Coolest since:
1913
49th Warmest
Warmest since:
2016
Ties: 1958, 1969
Jan 2007–Dec 2010
48-Month
45.1°F
(7.3°C)
44.4°F
(6.9°C)
0.7°F
(0.4°C)
91st Coolest
Coolest since:
1913, 1914, 1919
35th Warmest
Warmest since:
2016, 2017
Ties: 1934, 1936, 1937, 1943, 1968, 1988, 2012
Jan 2006–Dec 2010
60-Month
45.3°F
(7.4°C)
44.4°F
(6.9°C)
0.9°F
(0.5°C)
95th Coolest
Coolest since:
1913
30th Warmest
Warmest since:
2018
Ties: 1943

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