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, March 2011

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
March 2011
1-Month		48.7°F
(9.3°C)		48.8°F
(9.3°C)		-0.1°F
(0.0°C)		62nd Coolest
Coolest since:
1897
68th Warmest
Warmest since:
1934
Ties: 1981
Feb–Mar 2011
2-Month		46.1°F
(7.8°C)		47.1°F
(8.4°C)		-1.0°F
(-0.6°C)		38th Coolest
Coolest since:
1903
92nd Warmest
Warmest since:
2015
Ties: 1918
Jan–Mar 2011
3-Month		45.8°F
(7.7°C)		45.5°F
(7.5°C)		0.3°F
(0.2°C)		69th Coolest
Coolest since:
1949
61st Warmest
Warmest since:
2015
Ties: 1921, 1954, 1999, 2008
Dec 2010–Mar 2011
4-Month		45.8°F
(7.7°C)		44.9°F
(7.2°C)		0.9°F
(0.5°C)		86th Coolest
Coolest since:
1949
43rd Warmest
Warmest since:
2015
Ties: 1896, 1931, 1951
Nov 2010–Mar 2011
5-Month		46.4°F
(8.0°C)		45.8°F
(7.7°C)		0.6°F
(0.3°C)		75th Coolest
Coolest since:
1949
54th Warmest
Warmest since:
2015
Ties: 1927, 1960, 1987, 1998, 2008
Oct 2010–Mar 2011
6-Month		48.7°F
(9.3°C)		48.1°F
(8.9°C)		0.6°F
(0.4°C)		77th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2015
Ties: 1926, 1938, 1989
Sep 2010–Mar 2011
7-Month		51.8°F
(11.0°C)		51.0°F
(10.6°C)		0.8°F
(0.4°C)		85th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2015
Ties: 1954
Aug 2010–Mar 2011
8-Month		54.5°F
(12.5°C)		53.8°F
(12.1°C)		0.7°F
(0.4°C)		80th Coolest
Coolest since:
1917
49th Warmest
Warmest since:
2015
Ties: 1989
Jul 2010–Mar 2011
9-Month		56.9°F
(13.8°C)		56.2°F
(13.4°C)		0.7°F
(0.4°C)		84th Coolest
Coolest since:
1917
45th Warmest
Warmest since:
2015
Ties: 1905, 1941, 1961, 1988
Jun 2010–Mar 2011
10-Month		58.1°F
(14.5°C)		57.4°F
(14.1°C)		0.7°F
(0.4°C)		82nd Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2015
Ties: 1943, 1995, 2008
May 2010–Mar 2011
11-Month		58.0°F
(14.4°C)		57.7°F
(14.3°C)		0.3°F
(0.1°C)		69th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
2015
Ties: 1935, 1974
Apr 2010–Mar 2011
12-Month		57.4°F
(14.1°C)		57.4°F
(14.1°C)		0.0°F
(0.0°C)		58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2015
Ties: 1925, 1926, 1950, 1975, 1985
Oct 2009–Mar 2011
18-Month		54.5°F
(12.5°C)		54.3°F
(12.4°C)		0.2°F
(0.1°C)		71st Coolest
Coolest since:
1949
57th Warmest
Warmest since:
2015
Ties: 1932, 1944, 1970, 1984
Apr 2009–Mar 2011
24-Month		58.1°F
(14.5°C)		57.4°F
(14.1°C)		0.7°F
(0.4°C)		87th Coolest
Coolest since:
1913
41st Warmest
Warmest since:
2015
Ties: 1968, 1986, 1995
Apr 2008–Mar 2011
36-Month		58.5°F
(14.7°C)		57.4°F
(14.1°C)		1.1°F
(0.6°C)		104th Coolest
Coolest since:
1913, 1917
23rd Warmest
Warmest since:
2016
Ties: 1993
Apr 2007–Mar 2011
48-Month		58.5°F
(14.7°C)		57.4°F
(14.1°C)		1.1°F
(0.6°C)		105th Coolest
Coolest since:
1913
21st Warmest
Warmest since:
2018
Ties: 1996
Apr 2006–Mar 2011
60-Month		58.6°F
(14.8°C)		57.3°F
(14.1°C)		1.3°F
(0.7°C)		105th Coolest
Coolest since:
1913, 1917
20th Warmest
Warmest since:
2018
Ties: 2013

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