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 1986

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1986
1-Month
28.5°F
(-1.9°C)
28.1°F
(-2.2°C)
0.4°F
(0.3°C)
66th Coolest
Coolest since:
1990
62nd Warmest
Warmest since:
1917
Ties: 1996
Nov–Dec 1986
2-Month
32.0°F
(0.0°C)
31.3°F
(-0.4°C)
0.7°F
(0.4°C)
74th Coolest
Coolest since:
1985
54th Warmest
Warmest since:
1917
Ties: 1942, 1963, 1979
Oct–Dec 1986
3-Month
37.1°F
(2.8°C)
36.2°F
(2.3°C)
0.9°F
(0.5°C)
87th Coolest
Coolest since:
1985
41st Warmest
Warmest since:
1917
Ties: 1942, 1943, 1954, 1973, 2010, 2018
Sep–Dec 1986
4-Month
40.7°F
(4.8°C)
41.1°F
(5.1°C)
-0.4°F
(-0.3°C)
49th Coolest
Coolest since:
1985
79th Warmest
Warmest since:
1917
Ties: 1926, 1945, 1996
Aug–Dec 1986
5-Month
46.0°F
(7.8°C)
45.5°F
(7.5°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1985
49th Warmest
Warmest since:
1917, 2014
Ties: 1938, 1973, 2006, 2013
Jul–Dec 1986
6-Month
48.4°F
(9.1°C)
48.6°F
(9.2°C)
-0.2°F
(-0.1°C)
48th Coolest
Coolest since:
1985
80th Warmest
Warmest since:
2014
Ties: 1915, 1920
Jun–Dec 1986
7-Month
50.3°F
(10.2°C)
49.7°F
(9.8°C)
0.6°F
(0.4°C)
80th Coolest
Coolest since:
1916
48th Warmest
Warmest since:
2021
Ties: 1926, 1960, 1973, 1994, 2019
May–Dec 1986
8-Month
50.4°F
(10.2°C)
49.8°F
(9.9°C)
0.6°F
(0.3°C)
85th Coolest
Coolest since:
1916
43rd Warmest
Warmest since:
2021
Ties: 1949, 1950, 1969, 1991, 1995
Apr–Dec 1986
9-Month
49.4°F
(9.7°C)
49.0°F
(9.4°C)
0.4°F
(0.3°C)
72nd Coolest
Coolest since:
1916
56th Warmest
Warmest since:
2021
Ties: 1942, 1950, 1991, 2005, 2009
Mar–Dec 1986
10-Month
48.7°F
(9.3°C)
47.7°F
(8.7°C)
1.0°F
(0.6°C)
99th Coolest
Coolest since:
1916
29th Warmest
Warmest since:
2015
Feb–Dec 1986
11-Month
47.3°F
(8.5°C)
46.2°F
(7.9°C)
1.1°F
(0.6°C)
105th Coolest
Coolest since:
1955
23rd Warmest
Warmest since:
2015
Ties: 1941, 1994, 2001
Jan–Dec 1986
12-Month
45.9°F
(7.7°C)
44.5°F
(6.9°C)
1.4°F
(0.8°C)
107th Coolest
Coolest since:
1916
21st Warmest
Warmest since:
2015
Ties: 1981, 1988
Jul 1985–Dec 1986
18-Month
45.6°F
(7.6°C)
45.8°F
(7.7°C)
-0.2°F
(-0.1°C)
43rd Coolest
Coolest since:
1985
84th Warmest
Warmest since:
2015
Ties: 1908, 1914, 1924, 1937, 1962, 1965
Jan 1985–Dec 1986
24-Month
44.0°F
(6.7°C)
44.4°F
(6.9°C)
-0.4°F
(-0.2°C)
33rd Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2015
Ties: 1897, 1904, 1908, 1948
Jan 1984–Dec 1986
36-Month
43.8°F
(6.6°C)
44.4°F
(6.9°C)
-0.6°F
(-0.3°C)
24th Coolest
Coolest since:
1913
102nd Warmest
Warmest since:
2016
Ties: 1898, 1904, 1949, 1952
Jan 1983–Dec 1986
48-Month
44.1°F
(6.7°C)
44.5°F
(6.9°C)
-0.4°F
(-0.2°C)
37th Coolest
Coolest since:
1913, 1914, 1919
88th Warmest
Warmest since:
2016, 2017
Ties: 1955, 1972
Jan 1982–Dec 1986
60-Month
43.9°F
(6.6°C)
44.4°F
(6.9°C)
-0.5°F
(-0.3°C)
20th Coolest
Coolest since:
1913
104th Warmest
Warmest since:
2018
Ties: 1900, 1902, 1905, 1918, 1921, 1950, 1985

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