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 2009

View Period (Months):
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  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2009
1-Month
59.3°F
(15.2°C)
54.3°F
(12.4°C)
5.0°F
(2.8°C)
123rd Coolest
Coolest since:
1953
6th Warmest
Warmest since:
1934
Apr–May 2009
2-Month
52.3°F
(11.3°C)
50.0°F
(10.0°C)
2.3°F
(1.3°C)
102nd Coolest
Coolest since:
1975
27th Warmest
Warmest since:
1934
Ties: 1994, 2021
Mar–May 2009
3-Month
47.9°F
(8.8°C)
46.1°F
(7.8°C)
1.8°F
(1.0°C)
95th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
1934
Ties: 1954
Feb–May 2009
4-Month
44.5°F
(6.9°C)
42.7°F
(5.9°C)
1.8°F
(1.0°C)
101st Coolest
Coolest since:
1933
28th Warmest
Warmest since:
1934
Ties: 1931, 1936, 2018
Jan–May 2009
5-Month
42.1°F
(5.6°C)
39.8°F
(4.3°C)
2.3°F
(1.3°C)
108th Coolest
Coolest since:
1917
21st Warmest
Warmest since:
1934
Dec 2008–May 2009
6-Month
39.9°F
(4.4°C)
38.1°F
(3.4°C)
1.8°F
(1.0°C)
101st Coolest
Coolest since:
1917
27th Warmest
Warmest since:
1934
Ties: 1900, 2005, 2006, 2021, 2022
Nov 2008–May 2009
7-Month
40.3°F
(4.6°C)
38.1°F
(3.4°C)
2.2°F
(1.2°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
1934
Oct 2008–May 2009
8-Month
41.7°F
(5.4°C)
39.6°F
(4.2°C)
2.1°F
(1.2°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
1934
Sep 2008–May 2009
9-Month
44.0°F
(6.7°C)
41.9°F
(5.5°C)
2.1°F
(1.2°C)
113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
1934
Ties: 1978, 2004
Aug 2008–May 2009
10-Month
46.8°F
(8.2°C)
44.6°F
(7.0°C)
2.2°F
(1.2°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
1934
Ties: 2004, 2016, 2022
Jul 2008–May 2009
11-Month
49.3°F
(9.6°C)
47.1°F
(8.4°C)
2.2°F
(1.2°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
1934
Ties: 2017
Jun 2008–May 2009
12-Month
50.6°F
(10.3°C)
48.5°F
(9.2°C)
2.1°F
(1.1°C)
115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
1934
Ties: 2003
Dec 2007–May 2009
18-Month
46.0°F
(7.8°C)
45.0°F
(7.2°C)
1.0°F
(0.6°C)
93rd Coolest
Coolest since:
1917, 1933
34th Warmest
Warmest since:
2015
Ties: 1934, 1992, 2020
Jun 2007–May 2009
24-Month
49.8°F
(9.9°C)
48.4°F
(9.1°C)
1.4°F
(0.8°C)
106th Coolest
Coolest since:
1917
21st Warmest
Warmest since:
2015, 2016
Ties: 2020
Jun 2006–May 2009
36-Month
50.0°F
(10.0°C)
48.5°F
(9.2°C)
1.5°F
(0.8°C)
111th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2017
Ties: 1997, 2006
Jun 2005–May 2009
48-Month
49.9°F
(9.9°C)
48.4°F
(9.1°C)
1.5°F
(0.8°C)
110th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2018
Ties: 2002
Jun 2004–May 2009
60-Month
49.8°F
(9.9°C)
48.4°F
(9.1°C)
1.4°F
(0.8°C)
109th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2018
Ties: 2000

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