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 2021

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
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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 2021
1-Month
28.9°F
(-1.7°C)
28.1°F
(-2.2°C)
0.8°F
(0.5°C)
73rd Coolest
Coolest since:
1990
56th Warmest
Warmest since:
1917
Ties: 2011
Nov–Dec 2021
2-Month
34.0°F
(1.1°C)
31.4°F
(-0.3°C)
2.6°F
(1.4°C)
112th Coolest
Coolest since:
1985
17th Warmest
Warmest since:
1917
Ties: 1941, 1966, 2004
Oct–Dec 2021
3-Month
38.0°F
(3.3°C)
36.2°F
(2.3°C)
1.8°F
(1.0°C)
110th Coolest
Coolest since:
1985
19th Warmest
Warmest since:
1917
Ties: 1987, 2015, 2020
Sep–Dec 2021
4-Month
42.9°F
(6.1°C)
41.1°F
(5.1°C)
1.8°F
(1.0°C)
112th Coolest
Coolest since:
1985
17th Warmest
Warmest since:
1917
Ties: 1979, 1980
Aug–Dec 2021
5-Month
47.3°F
(8.5°C)
45.5°F
(7.5°C)
1.8°F
(1.0°C)
112th Coolest
Coolest since:
1985
17th Warmest
Warmest since:
1917, 2014
Ties: 1950, 1991, 1998, 2003
Jul–Dec 2021
6-Month
51.2°F
(10.7°C)
48.6°F
(9.2°C)
2.6°F
(1.5°C)
127th Coolest
Coolest since:
1985
2nd Warmest
Warmest since:
2014
Ties: 1917
Jun–Dec 2021
7-Month
53.1°F
(11.7°C)
49.8°F
(9.9°C)
3.3°F
(1.8°C)
128th Coolest
Coolest since:
1916
1st Warmest
Warmest to Date
2021
May–Dec 2021
8-Month
52.8°F
(11.6°C)
49.8°F
(9.9°C)
3.0°F
(1.7°C)
128th Coolest
Coolest since:
1916
1st Warmest
Warmest to Date
2021
Apr–Dec 2021
9-Month
51.9°F
(11.1°C)
49.0°F
(9.4°C)
2.9°F
(1.7°C)
128th Coolest
Coolest since:
1916
1st Warmest
Warmest to Date
2021
Mar–Dec 2021
10-Month
50.4°F
(10.2°C)
47.7°F
(8.7°C)
2.7°F
(1.5°C)
126th Coolest
Coolest since:
1916
3rd Warmest
Warmest since:
2015
Feb–Dec 2021
11-Month
48.5°F
(9.2°C)
46.1°F
(7.8°C)
2.4°F
(1.4°C)
126th Coolest
Coolest since:
1955
3rd Warmest
Warmest since:
2015
Ties: 1992
Jan–Dec 2021
12-Month
47.0°F
(8.3°C)
44.4°F
(6.9°C)
2.6°F
(1.4°C)
126th Coolest
Coolest since:
1916
3rd Warmest
Warmest since:
2015
Ties: 1992, 2014
Jul 2020–Dec 2021
18-Month
48.3°F
(9.1°C)
45.8°F
(7.7°C)
2.5°F
(1.4°C)
125th Coolest
Coolest since:
1985
3rd Warmest
Warmest since:
2015
Jan 2020–Dec 2021
24-Month
46.8°F
(8.2°C)
44.5°F
(6.9°C)
2.3°F
(1.3°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2015
Jan 2019–Dec 2021
36-Month
46.2°F
(7.9°C)
44.5°F
(6.9°C)
1.7°F
(1.0°C)
119th Coolest
Coolest since:
1913
8th Warmest
Warmest since:
2016
Ties: 2004
Jan 2018–Dec 2021
48-Month
46.2°F
(7.9°C)
44.4°F
(6.9°C)
1.8°F
(1.0°C)
121st Coolest
Coolest since:
1913, 1914, 1919
5th Warmest
Warmest since:
2016, 2017
Ties: 2006
Jan 2017–Dec 2021
60-Month
46.1°F
(7.8°C)
44.4°F
(6.9°C)
1.7°F
(0.9°C)
118th Coolest
Coolest since:
1913
7th Warmest
Warmest since:
2018
Ties: 2020, 2022

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