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 1999

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1999
1-Month
31.0°F
(-0.6°C)
29.7°F
(-1.3°C)
1.3°F
(0.7°C)
79th Coolest
Coolest since:
1909, 1932
49th Warmest
Warmest since:
1917
Ties: 1943
Nov–Dec 1999
2-Month
37.4°F
(3.0°C)
33.7°F
(0.9°C)
3.7°F
(2.1°C)
117th Coolest
Coolest since:
1931
11th Warmest
Warmest since:
1917
Ties: 1937
Oct–Dec 1999
3-Month
42.5°F
(5.8°C)
39.0°F
(3.9°C)
3.5°F
(1.9°C)
121st Coolest
Coolest since:
1919
7th Warmest
Warmest since:
1950
Ties: 1977
Sep–Dec 1999
4-Month
47.2°F
(8.4°C)
44.4°F
(6.9°C)
2.8°F
(1.5°C)
119th Coolest
Coolest since:
1971
9th Warmest
Warmest since:
2014
Ties: 1977, 2021
Aug–Dec 1999
5-Month
51.6°F
(10.9°C)
49.5°F
(9.7°C)
2.1°F
(1.2°C)
111th Coolest
Coolest since:
1916
17th Warmest
Warmest since:
2020
Ties: 1921
Jul–Dec 1999
6-Month
54.8°F
(12.7°C)
53.1°F
(11.7°C)
1.7°F
(1.0°C)
106th Coolest
Coolest since:
1916
22nd Warmest
Warmest since:
2020
Ties: 2005
Jun–Dec 1999
7-Month
56.0°F
(13.3°C)
54.5°F
(12.5°C)
1.5°F
(0.8°C)
102nd Coolest
Coolest since:
1916
26th Warmest
Warmest since:
2021
Ties: 1934, 2010
May–Dec 1999
8-Month
55.7°F
(13.2°C)
54.6°F
(12.6°C)
1.1°F
(0.6°C)
99th Coolest
Coolest since:
1916
29th Warmest
Warmest since:
2021
Ties: 1917, 1966, 2000, 2013
Apr–Dec 1999
9-Month
54.1°F
(12.3°C)
53.6°F
(12.0°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1912
49th Warmest
Warmest since:
2021
Ties: 1949, 1952, 1980, 1990, 1997
Mar–Dec 1999
10-Month
52.8°F
(11.6°C)
52.1°F
(11.2°C)
0.7°F
(0.4°C)
84th Coolest
Coolest since:
1912
44th Warmest
Warmest since:
1934, 2021
Ties: 1943
Feb–Dec 1999
11-Month
51.1°F
(10.6°C)
50.2°F
(10.1°C)
0.9°F
(0.5°C)
86th Coolest
Coolest since:
1911, 1912
42nd Warmest
Warmest since:
1934
Ties: 1997
Jan–Dec 1999
12-Month
49.6°F
(9.8°C)
48.4°F
(9.1°C)
1.2°F
(0.7°C)
100th Coolest
Coolest since:
1944
28th Warmest
Warmest since:
1934
Ties: 1910, 1954
Jul 1998–Dec 1999
18-Month
51.0°F
(10.6°C)
50.0°F
(10.0°C)
1.0°F
(0.6°C)
100th Coolest
Coolest since:
1912, 1913
27th Warmest
Warmest since:
1934
Ties: 1995, 2008
Jan 1998–Dec 1999
24-Month
49.0°F
(9.4°C)
48.4°F
(9.1°C)
0.6°F
(0.3°C)
86th Coolest
Coolest since:
1912, 1913
41st Warmest
Warmest since:
2015
Ties: 1958, 1961
Jan 1997–Dec 1999
36-Month
49.2°F
(9.6°C)
48.5°F
(9.2°C)
0.7°F
(0.4°C)
90th Coolest
Coolest since:
1913
36th Warmest
Warmest since:
2016
Ties: 1994, 2010
Jan 1996–Dec 1999
48-Month
49.5°F
(9.7°C)
48.5°F
(9.2°C)
1.0°F
(0.5°C)
104th Coolest
Coolest since:
1914
21st Warmest
Warmest since:
2017
Ties: 1998, 2000, 2010, 2013
Jan 1995–Dec 1999
60-Month
49.6°F
(9.8°C)
48.5°F
(9.2°C)
1.1°F
(0.6°C)
105th Coolest
Coolest since:
1899, 1915, 1916
19th Warmest
Warmest since:
2018
Ties: 1996, 1998, 2010

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