Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 2012

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 2012
1-Month		29.2°F
(-1.6°C)		28.1°F
(-2.2°C)		1.1°F
(0.6°C)		78th Coolest
Coolest since:
1990
51st Warmest
Warmest since:
1917
Ties: 1952, 2018
Nov–Dec 2012
2-Month		33.6°F
(0.9°C)		31.4°F
(-0.3°C)		2.2°F
(1.2°C)		104th Coolest
Coolest since:
1985
25th Warmest
Warmest since:
1917
Ties: 1954
Oct–Dec 2012
3-Month		37.7°F
(3.2°C)		36.2°F
(2.3°C)		1.5°F
(0.9°C)		104th Coolest
Coolest since:
1985
25th Warmest
Warmest since:
1917
Ties: 1963, 1974, 1989
Sep–Dec 2012
4-Month		43.2°F
(6.2°C)		41.1°F
(5.1°C)		2.1°F
(1.1°C)		116th Coolest
Coolest since:
1985
13th Warmest
Warmest since:
1917
Ties: 1950
Aug–Dec 2012
5-Month		47.9°F
(8.8°C)		45.5°F
(7.5°C)		2.4°F
(1.3°C)		124th Coolest
Coolest since:
1985
5th Warmest
Warmest since:
1917, 2014
Ties: 1999
Jul–Dec 2012
6-Month		51.0°F
(10.6°C)		48.6°F
(9.2°C)		2.4°F
(1.4°C)		125th Coolest
Coolest since:
1985
4th Warmest
Warmest since:
2014
Ties: 1939, 2022
Jun–Dec 2012
7-Month		51.6°F
(10.9°C)		49.8°F
(9.9°C)		1.8°F
(1.0°C)		120th Coolest
Coolest since:
1916
9th Warmest
Warmest since:
2021
Ties: 1917, 1967
May–Dec 2012
8-Month		51.4°F
(10.8°C)		49.8°F
(9.9°C)		1.6°F
(0.9°C)		115th Coolest
Coolest since:
1916
14th Warmest
Warmest since:
2021
Ties: 1987, 2006
Apr–Dec 2012
9-Month		50.7°F
(10.4°C)		49.0°F
(9.4°C)		1.7°F
(1.0°C)		115th Coolest
Coolest since:
1916
14th Warmest
Warmest since:
2021
Ties: 2004
Mar–Dec 2012
10-Month		49.3°F
(9.6°C)		47.7°F
(8.7°C)		1.6°F
(0.9°C)		114th Coolest
Coolest since:
1916
15th Warmest
Warmest since:
2015
Ties: 2018
Feb–Dec 2012
11-Month		47.7°F
(8.7°C)		46.1°F
(7.8°C)		1.6°F
(0.9°C)		112th Coolest
Coolest since:
1955
17th Warmest
Warmest since:
2015
Ties: 1998
Jan–Dec 2012
12-Month		46.2°F
(7.9°C)		44.5°F
(6.9°C)		1.7°F
(1.0°C)		114th Coolest
Coolest since:
1916
15th Warmest
Warmest since:
2015
Jul 2011–Dec 2012
18-Month		47.3°F
(8.5°C)		45.8°F
(7.7°C)		1.5°F
(0.8°C)		113th Coolest
Coolest since:
1985
15th Warmest
Warmest since:
2015
Ties: 2007, 2020
Jan 2011–Dec 2012
24-Month		45.2°F
(7.3°C)		44.4°F
(6.9°C)		0.8°F
(0.4°C)		90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2015
Ties: 1968, 1993, 2008
Jan 2010–Dec 2012
36-Month		45.2°F
(7.3°C)		44.4°F
(6.9°C)		0.8°F
(0.4°C)		93rd Coolest
Coolest since:
1913
34th Warmest
Warmest since:
2016
Ties: 1926, 1927, 1934, 1967, 1968, 1993
Jan 2009–Dec 2012
48-Month		45.1°F
(7.3°C)		44.4°F
(6.9°C)		0.7°F
(0.4°C)		91st Coolest
Coolest since:
1913, 1914, 1919
35th Warmest
Warmest since:
2016, 2017
Ties: 1934, 1936, 1937, 1943, 1968, 1988, 2010
Jan 2008–Dec 2012
60-Month		45.0°F
(7.2°C)		44.4°F
(6.9°C)		0.6°F
(0.3°C)		88th Coolest
Coolest since:
1913
37th Warmest
Warmest since:
2018
Ties: 1962, 1989, 2011

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