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 1916

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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 1916 1-Month	57.8°F (14.3°C)	60.7°F (15.9°C)	-2.9°F (-1.6°C)	18th Coolest	Coolest since: 1915	1977
May 1916 1-Month	57.8°F (14.3°C)	60.7°F (15.9°C)	-2.9°F (-1.6°C)	111th Warmest	Warmest since: 1914	2001
Apr–May 1916 2-Month	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	50th Coolest	Coolest since: 1915	1967
	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	79th Warmest	Warmest since: 1914	1992
	Ties: 1945
Mar–May 1916 3-Month	54.9°F (12.7°C)	54.5°F (12.5°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1915	1917
Mar–May 1916 3-Month	54.9°F (12.7°C)	54.5°F (12.5°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1914	1934
Feb–May 1916 4-Month	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	81st Coolest	Coolest since: 1915	1917
	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	48th Warmest	Warmest since: 1914	1934
	Ties: 2008
Jan–May 1916 5-Month	50.1°F (10.1°C)	50.2°F (10.1°C)	-0.1°F (0.0°C)	59th Coolest	Coolest since: 1915	1917
	50.1°F (10.1°C)	50.2°F (10.1°C)	-0.1°F (0.0°C)	70th Warmest	Warmest since: 1914	2015
	Ties: 1906, 1991
Dec 1915–May 1916 6-Month	48.9°F (9.4°C)	49.1°F (9.5°C)	-0.2°F (-0.1°C)	51st Coolest	Coolest since: 1915	1917
	48.9°F (9.4°C)	49.1°F (9.5°C)	-0.2°F (-0.1°C)	77th Warmest	Warmest since: 1914	2015
	Ties: 1907, 1956, 1957, 1983, 1985
Nov 1915–May 1916 7-Month	48.8°F (9.3°C)	49.1°F (9.5°C)	-0.3°F (-0.2°C)	50th Coolest	Coolest since: 1915	1917
	48.8°F (9.3°C)	49.1°F (9.5°C)	-0.3°F (-0.2°C)	78th Warmest	Warmest since: 1914	2015
	Ties: 1956, 1974, 2010
Oct 1915–May 1916 8-Month	50.3°F (10.2°C)	50.4°F (10.2°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1915	1917
	50.3°F (10.2°C)	50.4°F (10.2°C)	-0.1°F (0.0°C)	72nd Warmest	Warmest since: 1914	2015
	Ties: 1946, 1950, 1956, 1958
Sep 1915–May 1916 9-Month	52.0°F (11.1°C)	52.4°F (11.3°C)	-0.4°F (-0.2°C)	39th Coolest	Coolest since: 1915	1917
	52.0°F (11.1°C)	52.4°F (11.3°C)	-0.4°F (-0.2°C)	89th Warmest	Warmest since: 1914	2015
	Ties: 1910, 1945, 1967, 1972, 1974, 1998
Aug 1915–May 1916 10-Month	54.3°F (12.4°C)	54.6°F (12.6°C)	-0.3°F (-0.2°C)	45th Coolest	Coolest since: 1915	1917
	54.3°F (12.4°C)	54.6°F (12.6°C)	-0.3°F (-0.2°C)	83rd Warmest	Warmest since: 1914	2015
	Ties: 1907, 1998
Jul 1915–May 1916 11-Month	56.0°F (13.3°C)	56.4°F (13.6°C)	-0.4°F (-0.3°C)	39th Coolest	Coolest since: 1915	1917
	56.0°F (13.3°C)	56.4°F (13.6°C)	-0.4°F (-0.3°C)	89th Warmest	Warmest since: 1914	2015
	Ties: 1897, 1902, 1923, 1957
Jun 1915–May 1916 12-Month	57.0°F (13.9°C)	57.4°F (14.1°C)	-0.4°F (-0.2°C)	36th Coolest	Coolest since: 1915	1917
	57.0°F (13.9°C)	57.4°F (14.1°C)	-0.4°F (-0.2°C)	92nd Warmest	Warmest since: 1914	2015
	Ties: 1919, 1971
Dec 1914–May 1916 18-Month	53.9°F (12.2°C)	54.6°F (12.6°C)	-0.7°F (-0.4°C)	20th Coolest	Coolest since: 1913	1917
	53.9°F (12.2°C)	54.6°F (12.6°C)	-0.7°F (-0.4°C)	107th Warmest	Warmest since: 1915	2015
	Ties: 1899, 1910, 1953
Jun 1914–May 1916 24-Month	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	19th Coolest	Coolest since: 1914	1913, 1917
	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1915	2015
	Ties: 1908, 1911, 1923
Jun 1913–May 1916 36-Month	57.1°F (13.9°C)	57.4°F (14.1°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1915	1913, 1917
	57.1°F (13.9°C)	57.4°F (14.1°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1907	2016
	Ties: 1920, 1925, 1945, 1964, 1965, 1976, 1977
Jun 1912–May 1916 48-Month	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	18th Coolest	Coolest since: 1915	1913
	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	107th Warmest	Warmest since: 1908	2016, 2017, 2018
	Ties: 1899, 1903, 1951
Jun 1911–May 1916 60-Month	56.4°F (13.6°C)	57.3°F (14.1°C)	-0.9°F (-0.5°C)	5th Coolest	Coolest since: 1915	1913, 1917
	56.4°F (13.6°C)	57.3°F (14.1°C)	-0.9°F (-0.5°C)	119th Warmest	Warmest since: 1915	2018
	Ties: 1914, 1915, 1920

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 22, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings