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, May 1899

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1899
1-Month
49.1°F
(9.5°C)
54.3°F
(12.4°C)
-5.2°F
(-2.9°C)
7th Coolest
Coolest since:
1953
122nd Warmest
Warmest since:
1934
Apr–May 1899
2-Month
47.8°F
(8.8°C)
50.1°F
(10.1°C)
-2.3°F
(-1.3°C)
20th Coolest
Coolest since:
1975
109th Warmest
Warmest since:
1934
Ties: 1964
Mar–May 1899
3-Month
44.4°F
(6.9°C)
46.1°F
(7.8°C)
-1.7°F
(-0.9°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
1934
Ties: 1909, 2011
Feb–May 1899
4-Month
41.2°F
(5.1°C)
42.7°F
(5.9°C)
-1.5°F
(-0.8°C)
19th Coolest
Coolest since:
1933
110th Warmest
Warmest since:
1934
Ties: 1897, 1945, 1953
Jan–May 1899
5-Month
39.1°F
(3.9°C)
39.8°F
(4.3°C)
-0.7°F
(-0.4°C)
33rd Coolest
Coolest since:
1917
96th Warmest
Warmest to Date
1934
Ties: 1985
Dec 1898–May 1899
6-Month
36.8°F
(2.7°C)
38.2°F
(3.4°C)
-1.4°F
(-0.7°C)
23rd Coolest
Coolest since:
1917
105th Warmest
Warmest since:
1934
Ties: 1896, 2010
Nov 1898–May 1899
7-Month
36.5°F
(2.5°C)
38.1°F
(3.4°C)
-1.6°F
(-0.9°C)
20th Coolest
Coolest since:
1917
108th Warmest
Warmest since:
1934
Oct 1898–May 1899
8-Month
37.7°F
(3.2°C)
39.6°F
(4.2°C)
-1.9°F
(-1.0°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
1934
Ties: 1898, 1906, 1913, 1920
Sep 1898–May 1899
9-Month
40.2°F
(4.6°C)
41.9°F
(5.5°C)
-1.7°F
(-0.9°C)
13th Coolest
Coolest since:
1917
115th Warmest
Warmest since:
1934
Ties: 1898, 1929, 1962
Aug 1898–May 1899
10-Month
43.4°F
(6.3°C)
44.6°F
(7.0°C)
-1.2°F
(-0.7°C)
20th Coolest
Coolest since:
1917
108th Warmest
Warmest since:
1934
Ties: 1896, 1920
Jul 1898–May 1899
11-Month
46.0°F
(7.8°C)
47.0°F
(8.3°C)
-1.0°F
(-0.5°C)
21st Coolest
Coolest since:
1917
107th Warmest
Warmest since:
1934
Ties: 1962
Jun 1898–May 1899
12-Month
47.6°F
(8.7°C)
48.5°F
(9.2°C)
-0.9°F
(-0.5°C)
26th Coolest
Coolest since:
1917
102nd Warmest
Warmest since:
1934
Ties: 1908, 1983
Dec 1897–May 1899
18-Month
43.7°F
(6.5°C)
45.0°F
(7.2°C)
-1.3°F
(-0.7°C)
7th Coolest
Coolest since:
1917, 1933
120th Warmest
Warmest since:
2015
Jun 1897–May 1899
24-Month
47.3°F
(8.5°C)
48.5°F
(9.2°C)
-1.2°F
(-0.7°C)
7th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2015, 2016
Ties: 1914
Jun 1896–May 1899
36-Month
47.6°F
(8.7°C)
48.4°F
(9.1°C)
-0.8°F
(-0.4°C)
11th Coolest
Coolest since:
1917
115th Warmest
Warmest to Date
2017
Ties: 1946
Jun 1895–May 1899
48-Month
47.5°F
(8.6°C)
48.4°F
(9.1°C)
-0.9°F
(-0.5°C)
4th Coolest
Coolest since:
1917
121st Warmest
Warmest to Date
2018
Ties: 1913, 1914, 1918, 1920, 1950

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