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 1931

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2021)		 Warmest/Coolest
Since		 Record
December 1931
1-Month 		24.0°F
(-4.4°C)		 29.7°F
(-1.3°C)		 -5.7°F
(-3.1°C)		 8th Coolest
Coolest since:
 1909, 1932
120th Warmest
Warmest since:
 1917
Nov–Dec 1931
2-Month 		28.3°F
(-2.1°C)		 33.6°F
(0.9°C)		 -5.3°F
(-3.0°C)		 1st Coolest
Coolest since:
 1931
127th Warmest
Warmest since:
 1917
Oct–Dec 1931
3-Month 		36.0°F
(2.2°C)		 39.0°F
(3.9°C)		 -3.0°F
(-1.7°C)		 10th Coolest
Coolest since:
 1919
118th Warmest
Warmest since:
 1950
Ties: 1984
Sep–Dec 1931
4-Month 		42.0°F
(5.6°C)		 44.4°F
(6.9°C)		 -2.4°F
(-1.3°C)		 11th Coolest
Coolest since:
 1971
117th Warmest
Warmest since:
 2014
Ties: 1924
Aug–Dec 1931
5-Month 		47.9°F
(8.8°C)		 49.4°F
(9.7°C)		 -1.5°F
(-0.9°C)		 16th Coolest
Coolest since:
 1916
112th Warmest
Warmest since:
 2020
Ties: 1948, 1961
Jul–Dec 1931
6-Month 		52.6°F
(11.4°C)		 53.1°F
(11.7°C)		 -0.5°F
(-0.3°C)		 42nd Coolest
Coolest since:
 1916
86th Warmest
Warmest since:
 2020
Ties: 1907, 1928, 1944
Jun–Dec 1931
7-Month 		54.5°F
(12.5°C)		 54.6°F
(12.6°C)		 -0.1°F
(-0.1°C)		 52nd Coolest
Coolest since:
 1916
76th Warmest
Warmest since:
 2021
Ties: 1938, 1954, 1961, 1998
May–Dec 1931
8-Month 		54.8°F
(12.7°C)		 54.5°F
(12.5°C)		 0.3°F
(0.2°C)		 68th Coolest
Coolest since:
 1916
60th Warmest
Warmest since:
 2021
Ties: 1943, 1955, 1959, 1991
Apr–Dec 1931
9-Month 		54.0°F
(12.2°C)		 53.5°F
(11.9°C)		 0.5°F
(0.3°C)		 73rd Coolest
Coolest since:
 1912
55th Warmest
Warmest since:
 2021
Ties: 1929, 1942, 1995
Mar–Dec 1931
10-Month 		52.5°F
(11.4°C)		 52.0°F
(11.1°C)		 0.5°F
(0.3°C)		 78th Coolest
Coolest since:
 1912
50th Warmest
Warmest since:
 1934, 2021
Ties: 1901, 1995
Feb–Dec 1931
11-Month 		50.9°F
(10.5°C)		 50.3°F
(10.2°C)		 0.6°F
(0.3°C)		 82nd Coolest
Coolest since:
 1911, 1912
46th Warmest
Warmest since:
 1934
Ties: 1966
Jan–Dec 1931
12-Month 		49.0°F
(9.4°C)		 48.5°F
(9.2°C)		 0.5°F
(0.2°C)		 78th Coolest
Coolest since:
 1944
50th Warmest
Warmest since:
 1934
Ties: 1966, 1974
Jul 1930–Dec 1931
18-Month 		49.6°F
(9.8°C)		 50.0°F
(10.0°C)		 -0.4°F
(-0.2°C)		 40th Coolest
Coolest since:
 1912, 1913
87th Warmest
Warmest since:
 1934
Ties: 1925, 1937, 1965
Jan 1930–Dec 1931
24-Month 		48.2°F
(9.0°C)		 48.4°F
(9.1°C)		 -0.2°F
(-0.1°C)		 44th Coolest
Coolest since:
 1912, 1913
83rd Warmest
Warmest since:
 2015
Ties: 1911, 1925, 1955, 1973
Jan 1929–Dec 1931
36-Month 		48.1°F
(8.9°C)		 48.4°F
(9.1°C)		 -0.3°F
(-0.2°C)		 40th Coolest
Coolest since:
 1913
86th Warmest
Warmest since:
 2016
Ties: 1911, 1920, 1930, 1947, 1964, 1971, 1976
Jan 1928–Dec 1931
48-Month 		48.3°F
(9.1°C)		 48.4°F
(9.1°C)		 -0.1°F
(0.0°C)		 49th Coolest
Coolest since:
 1914
76th Warmest
Warmest since:
 2017
Ties: 1930, 1955, 1958, 1964, 1978
Jan 1927–Dec 1931
60-Month 		48.4°F
(9.1°C)		 48.4°F
(9.1°C)		 0.0°F
(0.0°C)		 56th Coolest
Coolest since:
 1899, 1915, 1916
68th Warmest
Warmest since:
 2018
Ties: 1957, 1969, 1978

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