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 2017

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
(1895-2021)
Warmest/Coolest
Since
Record
December 2017
1-Month
28.7°F
(-1.8°C)
28.1°F
(-2.2°C)
0.6°F
(0.4°C)
70th Coolest
Coolest since:
1990
58th Warmest
Warmest since:
1917
Ties: 1997
Nov–Dec 2017
2-Month
32.7°F
(0.4°C)
31.3°F
(-0.4°C)
1.4°F
(0.8°C)
88th Coolest
Coolest since:
1985
40th Warmest
Warmest since:
1917
Ties: 1926
Oct–Dec 2017
3-Month
36.6°F
(2.6°C)
36.2°F
(2.3°C)
0.4°F
(0.3°C)
71st Coolest
Coolest since:
1985
57th Warmest
Warmest since:
1917
Ties: 1899, 1944, 1949
Sep–Dec 2017
4-Month
41.9°F
(5.5°C)
41.1°F
(5.1°C)
0.8°F
(0.4°C)
81st Coolest
Coolest since:
1985
47th Warmest
Warmest since:
1917
Ties: 1947
Aug–Dec 2017
5-Month
47.1°F
(8.4°C)
45.5°F
(7.5°C)
1.6°F
(0.9°C)
106th Coolest
Coolest since:
1985
22nd Warmest
Warmest since:
1917, 2014
Ties: 1966, 1979, 1981, 1987
Jul–Dec 2017
6-Month
50.6°F
(10.3°C)
48.6°F
(9.2°C)
2.0°F
(1.1°C)
119th Coolest
Coolest since:
1985
9th Warmest
Warmest since:
2014
Ties: 1937, 1958, 2015
Jun–Dec 2017
7-Month
51.8°F
(11.0°C)
49.7°F
(9.8°C)
2.1°F
(1.2°C)
122nd Coolest
Coolest since:
1916
6th Warmest
Warmest since:
2021
May–Dec 2017
8-Month
51.8°F
(11.0°C)
49.7°F
(9.8°C)
2.1°F
(1.2°C)
122nd Coolest
Coolest since:
1916
6th Warmest
Warmest since:
2021
Apr–Dec 2017
9-Month
50.8°F
(10.4°C)
49.0°F
(9.4°C)
1.8°F
(1.0°C)
119th Coolest
Coolest since:
1916
9th Warmest
Warmest since:
2021
Ties: 1940, 2003, 2016, 2018
Mar–Dec 2017
10-Month
49.6°F
(9.8°C)
47.7°F
(8.7°C)
1.9°F
(1.1°C)
120th Coolest
Coolest since:
1916
8th Warmest
Warmest since:
2015
Ties: 1939, 1992, 2003, 2016
Feb–Dec 2017
11-Month
48.0°F
(8.9°C)
46.2°F
(7.9°C)
1.8°F
(1.0°C)
117th Coolest
Coolest since:
1955
11th Warmest
Warmest since:
2015
Ties: 2003
Jan–Dec 2017
12-Month
45.8°F
(7.7°C)
44.4°F
(6.9°C)
1.4°F
(0.8°C)
104th Coolest
Coolest since:
1916
24th Warmest
Warmest since:
2015
Ties: 1925, 1941, 1953, 1967, 1995, 2001
Jul 2016–Dec 2017
18-Month
47.0°F
(8.3°C)
45.8°F
(7.7°C)
1.2°F
(0.6°C)
102nd Coolest
Coolest since:
1985
25th Warmest
Warmest since:
2015
Ties: 1918, 1926, 1938, 1981, 2000
Jan 2016–Dec 2017
24-Month
46.4°F
(8.0°C)
44.5°F
(6.9°C)
1.9°F
(1.1°C)
122nd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2015
Jan 2015–Dec 2017
36-Month
47.0°F
(8.3°C)
44.4°F
(6.9°C)
2.6°F
(1.4°C)
124th Coolest
Coolest since:
1913
2nd Warmest
Warmest since:
2016
Ties: 2015
Jan 2014–Dec 2017
48-Month
47.0°F
(8.3°C)
44.4°F
(6.9°C)
2.6°F
(1.4°C)
124th Coolest
Coolest since:
1913, 1914, 1919
1st Warmest
Warmest since:
2016, 2017
Ties: 2016
Jan 2013–Dec 2017
60-Month
46.7°F
(8.2°C)
44.4°F
(6.9°C)
2.3°F
(1.3°C)
121st Coolest
Coolest since:
1913
3rd Warmest
Warmest since:
2018

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