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.

Great Basin

Average Temperature Rankings, December 1918

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1918
1-Month 		27.1°F
(-2.7°C)		 29.7°F
(-1.3°C)		 -2.6°F
(-1.4°C)		 28th Coolest
Coolest since:
 1909, 1932
101st Warmest
Warmest since:
 1917
Ties: 1899
Nov–Dec 1918
2-Month 		31.0°F
(-0.6°C)		 33.6°F
(0.9°C)		 -2.6°F
(-1.5°C)		 20th Coolest
Coolest since:
 1931
109th Warmest
Warmest since:
 1917
Ties: 1919
Oct–Dec 1918
3-Month 		37.9°F
(3.3°C)		 39.0°F
(3.9°C)		 -1.1°F
(-0.6°C)		 41st Coolest
Coolest since:
 1919
88th Warmest
Warmest since:
 1950
Ties: 1993, 2013
Sep–Dec 1918
4-Month 		43.9°F
(6.6°C)		 44.5°F
(6.9°C)		 -0.6°F
(-0.3°C)		 42nd Coolest
Coolest since:
 1971
87th Warmest
Warmest since:
 2014
Ties: 1992, 2000
Aug–Dec 1918
5-Month 		48.5°F
(9.2°C)		 49.5°F
(9.7°C)		 -1.0°F
(-0.5°C)		 30th Coolest
Coolest since:
 1916
99th Warmest
Warmest since:
 2020
Ties: 1913, 1970, 1993
Jul–Dec 1918
6-Month 		52.1°F
(11.2°C)		 53.1°F
(11.7°C)		 -1.0°F
(-0.5°C)		 28th Coolest
Coolest since:
 1916
101st Warmest
Warmest since:
 2020
Ties: 1899, 1920, 1932, 1961
Jun–Dec 1918
7-Month 		54.7°F
(12.6°C)		 54.6°F
(12.6°C)		 0.1°F
(0.0°C)		 59th Coolest
Coolest since:
 1916
70th Warmest
Warmest since:
 2021
Ties: 1969, 1983, 1990
May–Dec 1918
8-Month 		54.3°F
(12.4°C)		 54.5°F
(12.5°C)		 -0.2°F
(-0.1°C)		 45th Coolest
Coolest since:
 1916
84th Warmest
Warmest since:
 2021
Ties: 1919, 1925, 1938, 1956, 1983
Apr–Dec 1918
9-Month 		53.3°F
(11.8°C)		 53.6°F
(12.0°C)		 -0.3°F
(-0.2°C)		 45th Coolest
Coolest since:
 1912
84th Warmest
Warmest since:
 2021
Ties: 1897, 1935, 1956, 2011
Mar–Dec 1918
10-Month 		52.0°F
(11.1°C)		 52.1°F
(11.2°C)		 -0.1°F
(-0.1°C)		 57th Coolest
Coolest since:
 1912
72nd Warmest
Warmest since:
 1934, 2021
Ties: 1904, 1914, 1947, 2011
Feb–Dec 1918
11-Month 		50.1°F
(10.1°C)		 50.3°F
(10.2°C)		 -0.2°F
(-0.1°C)		 52nd Coolest
Coolest since:
 1911, 1912
77th Warmest
Warmest since:
 1934
Ties: 1957, 1967, 1973, 2011
Jan–Dec 1918
12-Month 		48.4°F
(9.1°C)		 48.4°F
(9.1°C)		 0.0°F
(0.0°C)		 51st Coolest
Coolest since:
 1944
78th Warmest
Warmest since:
 1934
Ties: 1904, 1935, 1938, 1972, 1976, 1978, 1998
Jul 1917–Dec 1918
18-Month 		50.9°F
(10.5°C)		 50.0°F
(10.0°C)		 0.9°F
(0.5°C)		 97th Coolest
Coolest since:
 1912, 1913
31st Warmest
Warmest to Date
 1934
Ties: 1926, 1989, 2005
Jan 1917–Dec 1918
24-Month 		47.7°F
(8.7°C)		 48.4°F
(9.1°C)		 -0.7°F
(-0.4°C)		 20th Coolest
Coolest since:
 1912, 1913
108th Warmest
Warmest since:
 2015
Ties: 1908, 1914, 1930, 1976
Jan 1916–Dec 1918
36-Month 		47.4°F
(8.6°C)		 48.4°F
(9.1°C)		 -1.0°F
(-0.5°C)		 5th Coolest
Coolest since:
 1913
122nd Warmest
Warmest since:
 2016
Ties: 1917, 1949
Jan 1915–Dec 1918
48-Month 		47.7°F
(8.7°C)		 48.5°F
(9.2°C)		 -0.8°F
(-0.5°C)		 11th Coolest
Coolest since:
 1914
115th Warmest
Warmest since:
 2017
Ties: 1905, 1908, 1912, 1916, 1917, 1947, 1951
Jan 1914–Dec 1918
60-Month 		47.9°F
(8.8°C)		 48.4°F
(9.1°C)		 -0.5°F
(-0.3°C)		 18th Coolest
Coolest since:
 1899, 1915, 1916
107th Warmest
Warmest since:
 2018
Ties: 1900, 1905, 1911, 1924, 1945, 1946, 1950, 1951, 1975

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