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 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1991
1-Month
30.0°F
(-1.1°C)
29.7°F
(-1.3°C)
0.3°F
(0.2°C)
69th Coolest
Coolest since:
1909, 1932
60th Warmest
Warmest since:
1917
Ties: 1936, 1976
Nov–Dec 1991
2-Month
34.0°F
(1.1°C)
33.7°F
(0.9°C)
0.3°F
(0.2°C)
67th Coolest
Coolest since:
1931
62nd Warmest
Warmest since:
1917
Ties: 1959, 1997
Oct–Dec 1991
3-Month
40.0°F
(4.4°C)
39.0°F
(3.9°C)
1.0°F
(0.5°C)
87th Coolest
Coolest since:
1919
42nd Warmest
Warmest since:
1950
Ties: 1953, 1987
Sep–Dec 1991
4-Month
45.6°F
(7.6°C)
44.4°F
(6.9°C)
1.2°F
(0.7°C)
91st Coolest
Coolest since:
1971
38th Warmest
Warmest since:
2014
Ties: 1960, 1988, 2022
Aug–Dec 1991
5-Month
50.6°F
(10.3°C)
49.4°F
(9.7°C)
1.2°F
(0.6°C)
93rd Coolest
Coolest since:
1916
36th Warmest
Warmest since:
2020
Ties: 1988
Jul–Dec 1991
6-Month
54.3°F
(12.4°C)
53.1°F
(11.7°C)
1.2°F
(0.7°C)
93rd Coolest
Coolest since:
1916
36th Warmest
Warmest since:
2020
Ties: 1901, 1953, 2002
Jun–Dec 1991
7-Month
55.4°F
(13.0°C)
54.6°F
(12.6°C)
0.8°F
(0.4°C)
87th Coolest
Coolest since:
1916
42nd Warmest
Warmest since:
2021
Ties: 1974, 1979, 1987, 1989
May–Dec 1991
8-Month
54.8°F
(12.7°C)
54.6°F
(12.6°C)
0.2°F
(0.1°C)
68th Coolest
Coolest since:
1916
61st Warmest
Warmest since:
2021
Ties: 1931, 1943, 1955, 1959
Apr–Dec 1991
9-Month
53.5°F
(11.9°C)
53.6°F
(12.0°C)
-0.1°F
(-0.1°C)
55th Coolest
Coolest since:
1912
74th Warmest
Warmest since:
2021
Ties: 1904, 1915, 1925, 1961, 1985
Mar–Dec 1991
10-Month
51.8°F
(11.0°C)
52.1°F
(11.2°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1912
83rd Warmest
Warmest since:
1934, 2021
Ties: 1952, 1953, 1972, 1985
Feb–Dec 1991
11-Month
50.6°F
(10.3°C)
50.3°F
(10.2°C)
0.3°F
(0.1°C)
70th Coolest
Coolest since:
1911, 1912
59th Warmest
Warmest since:
1934
Ties: 1901, 1928
Jan–Dec 1991
12-Month
48.7°F
(9.3°C)
48.5°F
(9.2°C)
0.2°F
(0.1°C)
67th Coolest
Coolest since:
1944
62nd Warmest
Warmest since:
1934
Jul 1990–Dec 1991
18-Month
50.1°F
(10.1°C)
50.0°F
(10.0°C)
0.1°F
(0.1°C)
61st Coolest
Coolest since:
1912, 1913
67th Warmest
Warmest since:
1934
Jan 1990–Dec 1991
24-Month
48.9°F
(9.4°C)
48.4°F
(9.1°C)
0.5°F
(0.3°C)
83rd Coolest
Coolest since:
1912, 1913
45th Warmest
Warmest since:
2015
Ties: 1921, 1936, 1939, 1977, 1978, 1982, 1986, 1993, 1998
Jan 1989–Dec 1991
36-Month
49.0°F
(9.4°C)
48.4°F
(9.1°C)
0.6°F
(0.3°C)
83rd Coolest
Coolest since:
1913
44th Warmest
Warmest since:
2016
Ties: 1934, 1982
Jan 1988–Dec 1991
48-Month
49.1°F
(9.5°C)
48.4°F
(9.1°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1914
37th Warmest
Warmest since:
2017
Ties: 1941, 1960, 1994
Jan 1987–Dec 1991
60-Month
49.2°F
(9.6°C)
48.4°F
(9.1°C)
0.8°F
(0.5°C)
94th Coolest
Coolest since:
1899, 1915, 1916
31st Warmest
Warmest since:
2018
Ties: 1938, 1962, 1981, 1989

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