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 1990

View Period (Months):
Download: csv json xml
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1990
1-Month
20.1°F
(-6.6°C)
28.1°F
(-2.2°C)
-8.0°F
(-4.4°C)
1st Coolest
Coolest since:
1990
127th Warmest
Warmest since:
1917
Nov–Dec 1990
2-Month
28.2°F
(-2.1°C)
31.3°F
(-0.4°C)
-3.1°F
(-1.7°C)
11th Coolest
Coolest since:
1985
117th Warmest
Warmest since:
1917
Oct–Dec 1990
3-Month
33.5°F
(0.8°C)
36.1°F
(2.3°C)
-2.6°F
(-1.5°C)
10th Coolest
Coolest since:
1985
118th Warmest
Warmest since:
1917
Sep–Dec 1990
4-Month
40.5°F
(4.7°C)
41.0°F
(5.0°C)
-0.5°F
(-0.3°C)
43rd Coolest
Coolest since:
1985
85th Warmest
Warmest since:
1917
Ties: 1902, 1908, 1956
Aug–Dec 1990
5-Month
45.4°F
(7.4°C)
45.5°F
(7.5°C)
-0.1°F
(-0.1°C)
52nd Coolest
Coolest since:
1985
76th Warmest
Warmest since:
1917, 2014
Ties: 1897, 1910, 1945
Jul–Dec 1990
6-Month
48.9°F
(9.4°C)
48.6°F
(9.2°C)
0.3°F
(0.2°C)
62nd Coolest
Coolest since:
1985
66th Warmest
Warmest since:
2014
Ties: 1947, 1949, 1965
Jun–Dec 1990
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
70th Warmest
Warmest since:
2021
Ties: 1922, 1929, 1949, 1965, 1969, 1980, 2005, 2010
May–Dec 1990
8-Month
49.8°F
(9.9°C)
49.8°F
(9.9°C)
0.0°F
(0.0°C)
53rd Coolest
Coolest since:
1916
75th Warmest
Warmest since:
2021
Ties: 1922, 1976, 1996, 2011
Apr–Dec 1990
9-Month
49.5°F
(9.7°C)
49.0°F
(9.4°C)
0.5°F
(0.3°C)
80th Coolest
Coolest since:
1916
48th Warmest
Warmest since:
2021
Ties: 1941, 1963, 1973, 1977, 1980, 1995, 1999
Mar–Dec 1990
10-Month
48.4°F
(9.1°C)
47.6°F
(8.7°C)
0.8°F
(0.4°C)
91st Coolest
Coolest since:
1916
37th Warmest
Warmest since:
2015
Ties: 1949, 2002, 2005
Feb–Dec 1990
11-Month
46.7°F
(8.2°C)
46.1°F
(7.8°C)
0.6°F
(0.4°C)
86th Coolest
Coolest since:
1955
42nd Warmest
Warmest since:
2015
Ties: 1915, 1938, 1973, 1977, 1980, 2002
Jan–Dec 1990
12-Month
45.4°F
(7.4°C)
44.5°F
(6.9°C)
0.9°F
(0.5°C)
95th Coolest
Coolest since:
1916
33rd Warmest
Warmest since:
2015
Ties: 1961, 1991, 1997
Jul 1989–Dec 1990
18-Month
46.7°F
(8.2°C)
45.8°F
(7.7°C)
0.9°F
(0.5°C)
93rd Coolest
Coolest since:
1985
34th Warmest
Warmest since:
2015
Jan 1989–Dec 1990
24-Month
45.0°F
(7.2°C)
44.4°F
(6.9°C)
0.6°F
(0.3°C)
84th Coolest
Coolest since:
1917
43rd Warmest
Warmest since:
2015
Ties: 1954, 1966, 1974
Jan 1988–Dec 1990
36-Month
45.3°F
(7.4°C)
44.4°F
(6.9°C)
0.9°F
(0.5°C)
97th Coolest
Coolest since:
1913
29th Warmest
Warmest since:
2016
Ties: 1935, 1997, 2013
Jan 1987–Dec 1990
48-Month
45.6°F
(7.6°C)
44.4°F
(6.9°C)
1.2°F
(0.7°C)
108th Coolest
Coolest since:
1913, 1914, 1919
17th Warmest
Warmest since:
2016, 2017
Ties: 1942, 1992, 1995, 1998, 2000
Jan 1986–Dec 1990
60-Month
45.7°F
(7.6°C)
44.5°F
(6.9°C)
1.2°F
(0.7°C)
112th Coolest
Coolest since:
1913
12th Warmest
Warmest to Date
2018
Ties: 1992, 1998, 2003, 2008, 2014

Citing This Page