Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 2005

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
May 2005
1-Month
62.1°F
(16.7°C)
60.7°F
(15.9°C)
1.4°F
(0.8°C)
81st Coolest
Coolest since:
1977
48th Warmest
Warmest since:
2001
Ties: 1972
Apr–May 2005
2-Month
57.6°F
(14.2°C)
57.4°F
(14.1°C)
0.2°F
(0.1°C)
65th Coolest
Coolest since:
1967
64th Warmest
Warmest since:
1992
Ties: 1937
Mar–May 2005
3-Month
55.4°F
(13.0°C)
54.5°F
(12.5°C)
0.9°F
(0.5°C)
84th Coolest
Coolest since:
1917
45th Warmest
Warmest since:
1934
Feb–May 2005
4-Month
53.3°F
(11.8°C)
52.2°F
(11.2°C)
1.1°F
(0.6°C)
85th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
1934
Jan–May 2005
5-Month
51.5°F
(10.8°C)
50.2°F
(10.1°C)
1.3°F
(0.7°C)
91st Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2015
Dec 2004–May 2005
6-Month
50.3°F
(10.2°C)
49.1°F
(9.5°C)
1.2°F
(0.7°C)
92nd Coolest
Coolest since:
1917
36th Warmest
Warmest since:
2015
Nov 2004–May 2005
7-Month
50.0°F
(10.0°C)
49.1°F
(9.5°C)
0.9°F
(0.5°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2015
Ties: 1924, 1936, 1968, 2019
Oct 2004–May 2005
8-Month
51.0°F
(10.6°C)
50.4°F
(10.2°C)
0.6°F
(0.4°C)
80th Coolest
Coolest since:
1917
48th Warmest
Warmest since:
2015
Ties: 1900, 1905, 1993
Sep 2004–May 2005
9-Month
53.0°F
(11.7°C)
52.4°F
(11.3°C)
0.6°F
(0.4°C)
81st Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2015
Ties: 1905, 1938, 1941
Aug 2004–May 2005
10-Month
55.2°F
(12.9°C)
54.6°F
(12.6°C)
0.6°F
(0.3°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2015
Ties: 1936, 1938, 1941
Jul 2004–May 2005
11-Month
57.1°F
(13.9°C)
56.4°F
(13.6°C)
0.7°F
(0.3°C)
90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2015
Ties: 1938, 1960, 1980, 1988, 1994
Jun 2004–May 2005
12-Month
58.2°F
(14.6°C)
57.4°F
(14.1°C)
0.8°F
(0.5°C)
92nd Coolest
Coolest since:
1917
36th Warmest
Warmest since:
2015
Ties: 1941, 1980, 1982, 1988, 1993
Dec 2003–May 2005
18-Month
56.0°F
(13.3°C)
54.6°F
(12.6°C)
1.4°F
(0.7°C)
104th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
2015
Ties: 2003
Jun 2003–May 2005
24-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
12th Warmest
Warmest since:
2015
Ties: 2013
Jun 2002–May 2005
36-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
11th Warmest
Warmest since:
2016
Ties: 1997, 2009
Jun 2001–May 2005
48-Month
59.0°F
(15.0°C)
57.4°F
(14.1°C)
1.6°F
(0.9°C)
115th Coolest
Coolest since:
1913
10th Warmest
Warmest since:
2016, 2017, 2018
Ties: 2004, 2007
Jun 2000–May 2005
60-Month
58.9°F
(14.9°C)
57.3°F
(14.1°C)
1.6°F
(0.8°C)
113th Coolest
Coolest since:
1913, 1917
11th Warmest
Warmest since:
2018
Ties: 2006

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