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 1900

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1900
1-Month		32.8°F
(0.4°C)		28.1°F
(-2.2°C)		4.7°F
(2.6°C)		123rd Coolest
Coolest since:
1990
6th Warmest
Warmest to Date
1917
Nov–Dec 1900
2-Month		33.3°F
(0.7°C)		31.4°F
(-0.3°C)		1.9°F
(1.0°C)		97th Coolest
Coolest since:
1985
32nd Warmest
Warmest since:
1917
Oct–Dec 1900
3-Month		36.9°F
(2.7°C)		36.2°F
(2.3°C)		0.7°F
(0.4°C)		78th Coolest
Coolest since:
1985
51st Warmest
Warmest to Date
1917
Ties: 1925, 1997
Sep–Dec 1900
4-Month		41.0°F
(5.0°C)		41.1°F
(5.1°C)		-0.1°F
(-0.1°C)		57th Coolest
Coolest since:
1985
72nd Warmest
Warmest since:
1917
Aug–Dec 1900
5-Month		44.7°F
(7.1°C)		45.5°F
(7.5°C)		-0.8°F
(-0.4°C)		32nd Coolest
Coolest since:
1985
97th Warmest
Warmest since:
1917, 2014
Ties: 1902, 1903, 1932
Jul–Dec 1900
6-Month		47.7°F
(8.7°C)		48.6°F
(9.2°C)		-0.9°F
(-0.5°C)		27th Coolest
Coolest since:
1985
102nd Warmest
Warmest since:
2014
Ties: 1913
Jun–Dec 1900
7-Month		49.5°F
(9.7°C)		49.8°F
(9.9°C)		-0.3°F
(-0.2°C)		43rd Coolest
Coolest since:
1916
86th Warmest
Warmest since:
2021
Ties: 1896, 1907, 1945, 1970
May–Dec 1900
8-Month		49.7°F
(9.8°C)		49.8°F
(9.9°C)		-0.1°F
(-0.1°C)		46th Coolest
Coolest since:
1916
83rd Warmest
Warmest since:
2021
Ties: 1928, 1931, 1944, 1945, 1965, 2000
Apr–Dec 1900
9-Month		49.1°F
(9.5°C)		49.0°F
(9.4°C)		0.1°F
(0.1°C)		55th Coolest
Coolest since:
1916
74th Warmest
Warmest since:
2021
Ties: 1931, 1996
Mar–Dec 1900
10-Month		48.2°F
(9.0°C)		47.7°F
(8.7°C)		0.5°F
(0.3°C)		82nd Coolest
Coolest since:
1916
47th Warmest
Warmest to Date
2015
Ties: 1933, 1963, 1973, 1995, 1999
Feb–Dec 1900
11-Month		46.5°F
(8.1°C)		46.1°F
(7.8°C)		0.4°F
(0.3°C)		76th Coolest
Coolest since:
1955
53rd Warmest
Warmest to Date
2015
Ties: 1904
Jan–Dec 1900
12-Month		45.3°F
(7.4°C)		44.5°F
(6.9°C)		0.8°F
(0.5°C)		90th Coolest
Coolest since:
1916
39th Warmest
Warmest to Date
2015
Ties: 1966, 2000
Jul 1899–Dec 1900
18-Month		46.2°F
(7.9°C)		45.8°F
(7.7°C)		0.4°F
(0.2°C)		75th Coolest
Coolest since:
1985
53rd Warmest
Warmest to Date
2015
Ties: 1977, 2008
Jan 1899–Dec 1900
24-Month		44.1°F
(6.7°C)		44.4°F
(6.9°C)		-0.3°F
(-0.2°C)		38th Coolest
Coolest since:
1917
90th Warmest
Warmest to Date
2015
Ties: 1919, 1928, 1931, 1932, 1943, 1944, 1964, 1971, 1983, 1984
Jan 1898–Dec 1900
36-Month		43.9°F
(6.6°C)		44.4°F
(6.9°C)		-0.5°F
(-0.3°C)		29th Coolest
Coolest since:
1913
98th Warmest
Warmest to Date
2016
Ties: 1910, 1919, 1920, 1932, 1984
Jan 1897–Dec 1900
48-Month		43.9°F
(6.6°C)		44.4°F
(6.9°C)		-0.5°F
(-0.3°C)		23rd Coolest
Coolest since:
1913, 1914, 1919
103rd Warmest
Warmest to Date
2016, 2017
Ties: 1904, 1905, 1931, 1933
Jan 1896–Dec 1900
60-Month		43.9°F
(6.6°C)		44.4°F
(6.9°C)		-0.5°F
(-0.3°C)		20th Coolest
Coolest since:
1913
105th Warmest
Warmest to Date
2018
Ties: 1902, 1905, 1918, 1921, 1950, 1985, 1986

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