Regional Rankings

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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 1958

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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 1958 1-Month	64.0°F (17.8°C)	60.7°F (15.9°C)	3.3°F (1.9°C)	111th Coolest	Coolest since: 1957	1977
May 1958 1-Month	64.0°F (17.8°C)	60.7°F (15.9°C)	3.3°F (1.9°C)	18th Warmest	Warmest since: 1947	2001
Apr–May 1958 2-Month	58.6°F (14.8°C)	57.4°F (14.1°C)	1.2°F (0.7°C)	81st Coolest	Coolest since: 1957	1967
	58.6°F (14.8°C)	57.4°F (14.1°C)	1.2°F (0.7°C)	48th Warmest	Warmest since: 1954	1992
	Ties: 1950, 1969, 1994
Mar–May 1958 3-Month	54.0°F (12.2°C)	54.5°F (12.5°C)	-0.5°F (-0.3°C)	50th Coolest	Coolest since: 1955	1917
	54.0°F (12.2°C)	54.5°F (12.5°C)	-0.5°F (-0.3°C)	79th Warmest	Warmest since: 1957	1934
	Ties: 1905, 1915, 1961, 1970
Feb–May 1958 4-Month	52.6°F (11.4°C)	52.2°F (11.2°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1956	1917
	52.6°F (11.4°C)	52.2°F (11.2°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1957	1934
	Ties: 1907, 1939, 1970
Jan–May 1958 5-Month	50.9°F (10.5°C)	50.2°F (10.1°C)	0.7°F (0.4°C)	77th Coolest	Coolest since: 1957	1917
	50.9°F (10.5°C)	50.2°F (10.1°C)	0.7°F (0.4°C)	52nd Warmest	Warmest since: 1954	2015
	Ties: 1910, 1966, 1980
Dec 1957–May 1958 6-Month	49.8°F (9.9°C)	49.1°F (9.5°C)	0.7°F (0.4°C)	79th Coolest	Coolest since: 1957	1917
	49.8°F (9.9°C)	49.1°F (9.5°C)	0.7°F (0.4°C)	49th Warmest	Warmest since: 1954	2015
	Ties: 1939
Nov 1957–May 1958 7-Month	49.4°F (9.7°C)	49.1°F (9.5°C)	0.3°F (0.2°C)	71st Coolest	Coolest since: 1957	1917
	49.4°F (9.7°C)	49.1°F (9.5°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1954	2015
	Ties: 1938, 1966, 1993
Oct 1957–May 1958 8-Month	50.3°F (10.2°C)	50.4°F (10.2°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1957	1917
	50.3°F (10.2°C)	50.4°F (10.2°C)	-0.1°F (0.0°C)	72nd Warmest	Warmest since: 1956	2015
	Ties: 1916, 1946, 1950, 1956
Sep 1957–May 1958 9-Month	52.4°F (11.3°C)	52.4°F (11.3°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1957	1917
	52.4°F (11.3°C)	52.4°F (11.3°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1956	2015
	Ties: 1946, 1953, 1956, 1965
Aug 1957–May 1958 10-Month	54.4°F (12.4°C)	54.6°F (12.6°C)	-0.2°F (-0.2°C)	48th Coolest	Coolest since: 1957	1917
	54.4°F (12.4°C)	54.6°F (12.6°C)	-0.2°F (-0.2°C)	80th Warmest	Warmest since: 1956	2015
	Ties: 1950, 1967, 1972, 1991, 1999
Jul 1957–May 1958 11-Month	56.2°F (13.4°C)	56.4°F (13.6°C)	-0.2°F (-0.2°C)	49th Coolest	Coolest since: 1957	1917
	56.2°F (13.4°C)	56.4°F (13.6°C)	-0.2°F (-0.2°C)	79th Warmest	Warmest since: 1956	2015
	Ties: 1950, 1956
Jun 1957–May 1958 12-Month	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	64th Coolest	Coolest since: 1957	1917
	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	64th Warmest	Warmest since: 1954	2015
	Ties: 1900, 1985, 1991
Dec 1956–May 1958 18-Month	54.6°F (12.6°C)	54.6°F (12.6°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1957	1917
	54.6°F (12.6°C)	54.6°F (12.6°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1954	2015
	Ties: 1925, 1928, 1944, 1962, 2011
Jun 1956–May 1958 24-Month	57.3°F (14.1°C)	57.4°F (14.1°C)	-0.1°F (0.0°C)	53rd Coolest	Coolest since: 1957	1913, 1917
Jun 1956–May 1958 24-Month	57.3°F (14.1°C)	57.4°F (14.1°C)	-0.1°F (0.0°C)	74th Warmest	Warmest since: 1954	2015
Jun 1955–May 1958 36-Month	57.2°F (14.0°C)	57.4°F (14.1°C)	-0.2°F (-0.1°C)	46th Coolest	Coolest since: 1957	1913, 1917
	57.2°F (14.0°C)	57.4°F (14.1°C)	-0.2°F (-0.1°C)	80th Warmest	Warmest since: 1954	2016
	Ties: 1906, 1907, 1929, 1947, 1967
Jun 1954–May 1958 48-Month	56.9°F (13.8°C)	57.4°F (14.1°C)	-0.5°F (-0.3°C)	26th Coolest	Coolest since: 1955	1913
	56.9°F (13.8°C)	57.4°F (14.1°C)	-0.5°F (-0.3°C)	99th Warmest	Warmest since: 1957	2016, 2017, 2018
	Ties: 1905, 1906, 1925, 1948, 1955
Jun 1953–May 1958 60-Month	57.1°F (13.9°C)	57.3°F (14.1°C)	-0.2°F (-0.2°C)	40th Coolest	Coolest since: 1957	1913, 1917
	57.1°F (13.9°C)	57.3°F (14.1°C)	-0.2°F (-0.2°C)	84th Warmest	Warmest since: 1955	2018
	Ties: 1926, 1945, 1966, 1967, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 24, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings