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.

California River Basin

Average Temperature Rankings, May 2004

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2004
1-Month
63.2°F
(17.3°C)
60.7°F
(15.9°C)
2.5°F
(1.4°C)
100th Coolest
Coolest since:
1977
29th Warmest
Warmest since:
2001
Ties: 1936, 1976
Apr–May 2004
2-Month
60.2°F
(15.7°C)
57.3°F
(14.1°C)
2.9°F
(1.6°C)
110th Coolest
Coolest since:
1967
19th Warmest
Warmest since:
1992
Ties: 1940, 2007
Mar–May 2004
3-Month
59.1°F
(15.1°C)
54.5°F
(12.5°C)
4.6°F
(2.6°C)
127th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
1934
Ties: 1997
Feb–May 2004
4-Month
55.4°F
(13.0°C)
52.2°F
(11.2°C)
3.2°F
(1.8°C)
122nd Coolest
Coolest since:
1917
7th Warmest
Warmest since:
1934
Ties: 2007
Jan–May 2004
5-Month
53.0°F
(11.7°C)
50.2°F
(10.1°C)
2.8°F
(1.6°C)
120th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2015
Ties: 1996, 2000
Dec 2003–May 2004
6-Month
51.5°F
(10.8°C)
49.0°F
(9.4°C)
2.5°F
(1.4°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
2015
Nov 2003–May 2004
7-Month
50.8°F
(10.4°C)
49.1°F
(9.5°C)
1.7°F
(0.9°C)
105th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
2015
Ties: 1926, 1978, 2003
Oct 2003–May 2004
8-Month
52.7°F
(11.5°C)
50.5°F
(10.3°C)
2.2°F
(1.2°C)
115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2015
Ties: 1959
Sep 2003–May 2004
9-Month
54.9°F
(12.7°C)
52.4°F
(11.3°C)
2.5°F
(1.4°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2015
Ties: 2013
Aug 2003–May 2004
10-Month
56.9°F
(13.8°C)
54.5°F
(12.5°C)
2.4°F
(1.3°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
2015
Jul 2003–May 2004
11-Month
58.9°F
(14.9°C)
56.4°F
(13.6°C)
2.5°F
(1.3°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2015
Ties: 1997, 2016
Jun 2003–May 2004
12-Month
59.9°F
(15.5°C)
57.3°F
(14.1°C)
2.6°F
(1.4°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Dec 2002–May 2004
18-Month
56.8°F
(13.8°C)
54.6°F
(12.6°C)
2.2°F
(1.2°C)
118th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2015
Jun 2002–May 2004
24-Month
59.5°F
(15.3°C)
57.4°F
(14.1°C)
2.1°F
(1.2°C)
117th Coolest
Coolest since:
1913, 1917
10th Warmest
Warmest since:
2015
Jun 2001–May 2004
36-Month
59.3°F
(15.2°C)
57.4°F
(14.1°C)
1.9°F
(1.1°C)
116th Coolest
Coolest since:
1913, 1917
10th Warmest
Warmest to Date
2016
Jun 2000–May 2004
48-Month
59.0°F
(15.0°C)
57.3°F
(14.1°C)
1.7°F
(0.9°C)
115th Coolest
Coolest since:
1913
10th Warmest
Warmest to Date
2016, 2017, 2018
Ties: 2005, 2007
Jun 1999–May 2004
60-Month
59.1°F
(15.1°C)
57.4°F
(14.1°C)
1.7°F
(1.0°C)
115th Coolest
Coolest since:
1913, 1917
9th Warmest
Warmest to Date
2018

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