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 1900

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1900 1-Month	61.9°F (16.6°C)	60.7°F (15.9°C)	1.2°F (0.7°C)	78th Coolest	Coolest since: 1899	1977
	61.9°F (16.6°C)	60.7°F (15.9°C)	1.2°F (0.7°C)	51st Warmest	Warmest since: 1897	2001
	Ties: 1929, 1981
Apr–May 1900 2-Month	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	43rd Coolest	Coolest since: 1899	1967
	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	86th Warmest	Warmest since: 1898	1992
	Ties: 1927, 1957
Mar–May 1900 3-Month	55.3°F (12.9°C)	54.5°F (12.5°C)	0.8°F (0.4°C)	83rd Coolest	Coolest since: 1899	1917
	55.3°F (12.9°C)	54.5°F (12.5°C)	0.8°F (0.4°C)	46th Warmest	Warmest to Date	1934
	Ties: 1985, 2002
Feb–May 1900 4-Month	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	84th Coolest	Coolest since: 1899	1917
	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	45th Warmest	Warmest to Date	1934
	Ties: 1925, 1990
Jan–May 1900 5-Month	51.7°F (10.9°C)	50.2°F (10.1°C)	1.5°F (0.8°C)	97th Coolest	Coolest since: 1899	1917
	51.7°F (10.9°C)	50.2°F (10.1°C)	1.5°F (0.8°C)	32nd Warmest	Warmest to Date	2015
	Ties: 1914, 1943, 1954, 1988, 2001
Dec 1899–May 1900 6-Month	50.2°F (10.1°C)	49.1°F (9.5°C)	1.1°F (0.6°C)	91st Coolest	Coolest since: 1899	1917
Dec 1899–May 1900 6-Month	50.2°F (10.1°C)	49.1°F (9.5°C)	1.1°F (0.6°C)	37th Warmest	Warmest to Date	2015
Nov 1899–May 1900 7-Month	50.3°F (10.2°C)	49.1°F (9.5°C)	1.2°F (0.7°C)	95th Coolest	Coolest since: 1899	1917
	50.3°F (10.2°C)	49.1°F (9.5°C)	1.2°F (0.7°C)	33rd Warmest	Warmest to Date	2015
	Ties: 1990
Oct 1899–May 1900 8-Month	51.0°F (10.6°C)	50.4°F (10.2°C)	0.6°F (0.4°C)	80th Coolest	Coolest since: 1899	1917
	51.0°F (10.6°C)	50.4°F (10.2°C)	0.6°F (0.4°C)	48th Warmest	Warmest to Date	2015
	Ties: 1905, 1993, 2005
Sep 1899–May 1900 9-Month	53.1°F (11.7°C)	52.4°F (11.3°C)	0.7°F (0.4°C)	84th Coolest	Coolest since: 1899	1917
	53.1°F (11.7°C)	52.4°F (11.3°C)	0.7°F (0.4°C)	44th Warmest	Warmest to Date	2015
	Ties: 1936, 1987
Aug 1899–May 1900 10-Month	54.7°F (12.6°C)	54.6°F (12.6°C)	0.1°F (0.0°C)	68th Coolest	Coolest since: 1899	1917
	54.7°F (12.6°C)	54.6°F (12.6°C)	0.1°F (0.0°C)	60th Warmest	Warmest to Date	2015
	Ties: 1939, 1956, 1966, 2010, 2011
Jul 1899–May 1900 11-Month	56.5°F (13.6°C)	56.4°F (13.6°C)	0.1°F (0.0°C)	61st Coolest	Coolest since: 1899	1917
	56.5°F (13.6°C)	56.4°F (13.6°C)	0.1°F (0.0°C)	67th Warmest	Warmest to Date	2015
	Ties: 1924, 1946, 1953, 1985, 1995
Jun 1899–May 1900 12-Month	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1899	1917
	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	67th Warmest	Warmest to Date	2015
	Ties: 1958, 1985, 1991
Dec 1898–May 1900 18-Month	54.4°F (12.4°C)	54.6°F (12.6°C)	-0.2°F (-0.2°C)	45th Coolest	Coolest since: 1899	1917
	54.4°F (12.4°C)	54.6°F (12.6°C)	-0.2°F (-0.2°C)	82nd Warmest	Warmest to Date	2015
	Ties: 1906, 1915, 1930, 1946, 1952, 1969
Jun 1898–May 1900 24-Month	57.2°F (14.0°C)	57.4°F (14.1°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1899	1913, 1917
	57.2°F (14.0°C)	57.4°F (14.1°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest to Date	2015
	Ties: 1906, 1915, 1943, 1966
Jun 1897–May 1900 36-Month	56.9°F (13.8°C)	57.4°F (14.1°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1899	1913, 1917
	56.9°F (13.8°C)	57.4°F (14.1°C)	-0.5°F (-0.3°C)	102nd Warmest	Warmest to Date	2016
	Ties: 1905, 1933, 1951, 1966, 1973, 1975
Jun 1896–May 1900 48-Month	57.0°F (13.9°C)	57.4°F (14.1°C)	-0.4°F (-0.2°C)	32nd Coolest	Coolest since: 1899	1913
	57.0°F (13.9°C)	57.4°F (14.1°C)	-0.4°F (-0.2°C)	93rd Warmest	Warmest to Date	2016, 2017, 2018
	Ties: 1902, 1908, 1947, 1956, 1957, 1967, 1974, 1975, 1976
Jun 1895–May 1900 60-Month	56.9°F (13.8°C)	57.3°F (14.1°C)	-0.4°F (-0.3°C)	26th Coolest	Coolest to Date	1913, 1917
	56.9°F (13.8°C)	57.3°F (14.1°C)	-0.4°F (-0.3°C)	98th Warmest	Warmest to Date	2018
	Ties: 1901, 1906, 1907, 1951, 1953, 1956

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings