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 1903

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1903
1-Month 		28.4°F
(-2.0°C)		 28.1°F
(-2.2°C)		 0.3°F
(0.2°C)		 63rd Coolest
Coolest since:
 1990
66th Warmest
Warmest since:
 1917
Ties: 1943, 1994
Nov–Dec 1903
2-Month 		31.3°F
(-0.4°C)		 31.3°F
(-0.4°C)		 0.0°F
(0.0°C)		 58th Coolest
Coolest since:
 1985
71st Warmest
Warmest since:
 1917
Ties: 1967
Oct–Dec 1903
3-Month 		36.4°F
(2.4°C)		 36.2°F
(2.3°C)		 0.2°F
(0.1°C)		 62nd Coolest
Coolest since:
 1985
67th Warmest
Warmest since:
 1917
Ties: 1945, 1952, 1975, 2011
Sep–Dec 1903
4-Month 		40.4°F
(4.7°C)		 41.0°F
(5.0°C)		 -0.6°F
(-0.3°C)		 37th Coolest
Coolest since:
 1985
92nd Warmest
Warmest since:
 1917
Ties: 1897, 1915, 1920, 1932, 1968
Aug–Dec 1903
5-Month 		44.7°F
(7.1°C)		 45.4°F
(7.4°C)		 -0.7°F
(-0.3°C)		 32nd Coolest
Coolest since:
 1985
97th Warmest
Warmest since:
 1917, 2014
Ties: 1900, 1902, 1932
Jul–Dec 1903
6-Month 		47.3°F
(8.5°C)		 48.6°F
(9.2°C)		 -1.3°F
(-0.7°C)		 14th Coolest
Coolest since:
 1985
115th Warmest
Warmest since:
 2014
Ties: 1902, 1972
Jun–Dec 1903
7-Month 		49.0°F
(9.4°C)		 49.7°F
(9.8°C)		 -0.7°F
(-0.4°C)		 24th Coolest
Coolest since:
 1916
105th Warmest
Warmest since:
 2021
Ties: 1899, 1913, 1928, 1946, 1954, 1982
May–Dec 1903
8-Month 		48.9°F
(9.4°C)		 49.8°F
(9.9°C)		 -0.9°F
(-0.5°C)		 21st Coolest
Coolest since:
 1916
108th Warmest
Warmest since:
 2021
Ties: 1927, 1951, 1983, 1993
Apr–Dec 1903
9-Month 		47.9°F
(8.8°C)		 49.0°F
(9.4°C)		 -1.1°F
(-0.6°C)		 17th Coolest
Coolest since:
 1916
112th Warmest
Warmest since:
 2021
Ties: 1920, 1971
Mar–Dec 1903
10-Month 		46.5°F
(8.1°C)		 47.6°F
(8.7°C)		 -1.1°F
(-0.6°C)		 16th Coolest
Coolest since:
 1916
113th Warmest
Warmest since:
 2015
Ties: 1920, 1975
Feb–Dec 1903
11-Month 		44.4°F
(6.9°C)		 46.1°F
(7.8°C)		 -1.7°F
(-0.9°C)		 7th Coolest
Coolest since:
 1955
122nd Warmest
Warmest since:
 2015
Ties: 1964
Jan–Dec 1903
12-Month 		43.0°F
(6.1°C)		 44.4°F
(6.9°C)		 -1.4°F
(-0.8°C)		 11th Coolest
Coolest since:
 1916
118th Warmest
Warmest since:
 2015
Ties: 1964
Jul 1902–Dec 1903
18-Month 		44.5°F
(6.9°C)		 45.9°F
(7.7°C)		 -1.4°F
(-0.8°C)		 11th Coolest
Coolest since:
 1985
117th Warmest
Warmest since:
 2015
Jan 1902–Dec 1903
24-Month 		43.2°F
(6.2°C)		 44.4°F
(6.9°C)		 -1.2°F
(-0.7°C)		 8th Coolest
Coolest since:
 1917
120th Warmest
Warmest since:
 2015
Ties: 1899, 1916, 1923, 1955
Jan 1901–Dec 1903
36-Month 		43.6°F
(6.4°C)		 44.4°F
(6.9°C)		 -0.8°F
(-0.5°C)		 15th Coolest
Coolest since:
 1913
112th Warmest
Warmest since:
 2016
Ties: 1897, 1923, 1929, 1930
Jan 1900–Dec 1903
48-Month 		44.0°F
(6.7°C)		 44.4°F
(6.9°C)		 -0.4°F
(-0.2°C)		 28th Coolest
Coolest since:
 1913, 1914, 1919
98th Warmest
Warmest since:
 2016, 2017
Ties: 1901, 1902, 1909, 1910, 1921, 1925, 1949, 1956
Jan 1899–Dec 1903
60-Month 		43.8°F
(6.6°C)		 44.4°F
(6.9°C)		 -0.6°F
(-0.3°C)		 17th Coolest
Coolest since:
 1913
108th Warmest
Warmest since:
 2018
Ties: 1931, 1932

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