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

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 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)		 71st 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)		 89th 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)		 72nd 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
48th 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
23rd 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
10th 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
7th 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)		 123rd 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)		 120th 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)		 121st 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)		 118th 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)		 105th Coolest
Coolest since:
 1916
24th Warmest
Warmest since:
 2015
Ties: 1925, 1941, 1953, 1967, 1995, 2001, 2022
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
26th 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)		 123rd Coolest
Coolest since:
 1917
5th Warmest
Warmest since:
 2015
Ties: 2022
Jan 2015–Dec 2017
36-Month 		47.0°F
(8.3°C)		 44.4°F
(6.9°C)		 2.6°F
(1.4°C)		 125th 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)		 125th 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)		 122nd Coolest
Coolest since:
 1913
3rd Warmest
Warmest since:
 2018

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