Regional Rankings

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Month:

Region:

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 2003

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
May 2003 1-Month	62.0°F (16.7°C)	60.7°F (15.9°C)	1.3°F (0.8°C)	79th Coolest	Coolest since: 2002	1977
May 2003 1-Month	62.0°F (16.7°C)	60.7°F (15.9°C)	1.3°F (0.8°C)	51st Warmest	Warmest since: 2001	2001
Apr–May 2003 2-Month	56.1°F (13.4°C)	57.4°F (14.1°C)	-1.3°F (-0.7°C)	35th Coolest	Coolest since: 1999	1967
	56.1°F (13.4°C)	57.4°F (14.1°C)	-1.3°F (-0.7°C)	95th Warmest	Warmest since: 2002	1992
	Ties: 1903, 1965
Mar–May 2003 3-Month	54.5°F (12.5°C)	54.5°F (12.5°C)	0.0°F (0.0°C)	66th Coolest	Coolest since: 1999	1917
Mar–May 2003 3-Month	54.5°F (12.5°C)	54.5°F (12.5°C)	0.0°F (0.0°C)	64th Warmest	Warmest since: 2002	1934
Feb–May 2003 4-Month	52.3°F (11.3°C)	52.2°F (11.2°C)	0.1°F (0.1°C)	62nd Coolest	Coolest since: 1999	1917
	52.3°F (11.3°C)	52.2°F (11.2°C)	0.1°F (0.1°C)	68th Warmest	Warmest since: 2002	1934
	Ties: 1905, 1951
Jan–May 2003 5-Month	51.8°F (11.0°C)	50.2°F (10.1°C)	1.6°F (0.9°C)	101st Coolest	Coolest since: 2002	1917
	51.8°F (11.0°C)	50.2°F (10.1°C)	1.6°F (0.9°C)	29th Warmest	Warmest since: 2000	2015
	Ties: 1928, 1987
Dec 2002–May 2003 6-Month	50.5°F (10.3°C)	49.1°F (9.5°C)	1.4°F (0.8°C)	99th Coolest	Coolest since: 2002	1917
	50.5°F (10.3°C)	49.1°F (9.5°C)	1.4°F (0.8°C)	30th Warmest	Warmest since: 2001	2015
	Ties: 1943, 1987
Nov 2002–May 2003 7-Month	50.8°F (10.4°C)	49.1°F (9.5°C)	1.7°F (0.9°C)	106th Coolest	Coolest since: 2002	1917
	50.8°F (10.4°C)	49.1°F (9.5°C)	1.7°F (0.9°C)	23rd Warmest	Warmest since: 2000	2015
	Ties: 1926, 1978, 2004
Oct 2002–May 2003 8-Month	51.9°F (11.1°C)	50.4°F (10.2°C)	1.5°F (0.9°C)	105th Coolest	Coolest since: 2002	1917
Oct 2002–May 2003 8-Month	51.9°F (11.1°C)	50.4°F (10.2°C)	1.5°F (0.9°C)	24th Warmest	Warmest since: 2000	2015
Sep 2002–May 2003 9-Month	54.0°F (12.2°C)	52.4°F (11.3°C)	1.6°F (0.9°C)	107th Coolest	Coolest since: 2002	1917
	54.0°F (12.2°C)	52.4°F (11.3°C)	1.6°F (0.9°C)	22nd Warmest	Warmest since: 2002	2015
	Ties: 2002, 2012
Aug 2002–May 2003 10-Month	56.0°F (13.3°C)	54.6°F (12.6°C)	1.4°F (0.7°C)	106th Coolest	Coolest since: 2001	1917
	56.0°F (13.3°C)	54.6°F (12.6°C)	1.4°F (0.7°C)	23rd Warmest	Warmest since: 2002	2015
	Ties: 1968, 1978, 2007
Jul 2002–May 2003 11-Month	58.0°F (14.4°C)	56.4°F (13.6°C)	1.6°F (0.8°C)	109th Coolest	Coolest since: 2002	1917
	58.0°F (14.4°C)	56.4°F (13.6°C)	1.6°F (0.8°C)	20th Warmest	Warmest since: 2000	2015
	Ties: 1981, 2019
Jun 2002–May 2003 12-Month	59.1°F (15.1°C)	57.4°F (14.1°C)	1.7°F (1.0°C)	109th Coolest	Coolest since: 2002	1917
	59.1°F (15.1°C)	57.4°F (14.1°C)	1.7°F (1.0°C)	20th Warmest	Warmest since: 2000	2015
	Ties: 2019
Dec 2001–May 2003 18-Month	56.0°F (13.3°C)	54.6°F (12.6°C)	1.4°F (0.7°C)	104th Coolest	Coolest since: 2000	1917
	56.0°F (13.3°C)	54.6°F (12.6°C)	1.4°F (0.7°C)	24th Warmest	Warmest since: 2002	2015
	Ties: 2005
Jun 2001–May 2003 24-Month	59.0°F (15.0°C)	57.4°F (14.1°C)	1.6°F (0.9°C)	113th Coolest	Coolest since: 2002	1913, 1917
Jun 2001–May 2003 24-Month	59.0°F (15.0°C)	57.4°F (14.1°C)	1.6°F (0.9°C)	15th Warmest	Warmest since: 1997	2015
Jun 2000–May 2003 36-Month	58.8°F (14.9°C)	57.4°F (14.1°C)	1.4°F (0.8°C)	111th Coolest	Coolest since: 2002	1913, 1917
	58.8°F (14.9°C)	57.4°F (14.1°C)	1.4°F (0.8°C)	16th Warmest	Warmest since: 2002	2016
	Ties: 2002, 2006
Jun 1999–May 2003 48-Month	58.9°F (14.9°C)	57.4°F (14.1°C)	1.5°F (0.8°C)	112th Coolest	Coolest since: 2002	1913
	58.9°F (14.9°C)	57.4°F (14.1°C)	1.5°F (0.8°C)	14th Warmest	Warmest to Date	2016, 2017, 2018
	Ties: 2006, 2009
Jun 1998–May 2003 60-Month	58.5°F (14.7°C)	57.3°F (14.1°C)	1.2°F (0.6°C)	103rd Coolest	Coolest since: 2002	1913, 1917
	58.5°F (14.7°C)	57.3°F (14.1°C)	1.2°F (0.6°C)	22nd Warmest	Warmest since: 2000	2018
	Ties: 1998, 2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published June 2023, retrieved on June 10, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings