Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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 1919

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1919 1-Month	62.6°F (17.0°C)	60.7°F (15.9°C)	1.9°F (1.1°C)	92nd Coolest	Coolest since: 1918	1977
May 1919 1-Month	62.6°F (17.0°C)	60.7°F (15.9°C)	1.9°F (1.1°C)	37th Warmest	Warmest since: 1910	2001
Apr–May 1919 2-Month	58.7°F (14.8°C)	57.4°F (14.1°C)	1.3°F (0.7°C)	83rd Coolest	Coolest since: 1918	1967
Apr–May 1919 2-Month	58.7°F (14.8°C)	57.4°F (14.1°C)	1.3°F (0.7°C)	46th Warmest	Warmest since: 1910	1992
Mar–May 1919 3-Month	54.3°F (12.4°C)	54.5°F (12.5°C)	-0.2°F (-0.1°C)	57th Coolest	Coolest since: 1918	1917
	54.3°F (12.4°C)	54.5°F (12.5°C)	-0.2°F (-0.1°C)	72nd Warmest	Warmest since: 1916	1934
	Ties: 1895, 1897, 1956
Feb–May 1919 4-Month	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	33rd Coolest	Coolest since: 1918	1917
	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	96th Warmest	Warmest since: 1916	1934
	Ties: 1896, 1962
Jan–May 1919 5-Month	49.5°F (9.7°C)	50.3°F (10.2°C)	-0.8°F (-0.5°C)	32nd Coolest	Coolest since: 1918	1917
	49.5°F (9.7°C)	50.3°F (10.2°C)	-0.8°F (-0.5°C)	97th Warmest	Warmest since: 1916	2015
	Ties: 1899, 1909, 1915
Dec 1918–May 1919 6-Month	48.0°F (8.9°C)	49.1°F (9.5°C)	-1.1°F (-0.6°C)	22nd Coolest	Coolest since: 1917	1917
	48.0°F (8.9°C)	49.1°F (9.5°C)	-1.1°F (-0.6°C)	106th Warmest	Warmest since: 1918	2015
	Ties: 1902, 1909, 1942, 1962, 1967, 1973, 1979
Nov 1918–May 1919 7-Month	47.9°F (8.8°C)	49.1°F (9.5°C)	-1.2°F (-0.7°C)	17th Coolest	Coolest since: 1917	1917
	47.9°F (8.8°C)	49.1°F (9.5°C)	-1.2°F (-0.7°C)	111th Warmest	Warmest since: 1918	2015
	Ties: 1962, 1979
Oct 1918–May 1919 8-Month	49.5°F (9.7°C)	50.4°F (10.2°C)	-0.9°F (-0.5°C)	24th Coolest	Coolest since: 1917	1917
	49.5°F (9.7°C)	50.4°F (10.2°C)	-0.9°F (-0.5°C)	104th Warmest	Warmest since: 1918	2015
	Ties: 1899, 1923
Sep 1918–May 1919 9-Month	51.6°F (10.9°C)	52.5°F (11.4°C)	-0.9°F (-0.5°C)	23rd Coolest	Coolest since: 1917	1917
	51.6°F (10.9°C)	52.5°F (11.4°C)	-0.9°F (-0.5°C)	105th Warmest	Warmest since: 1918	2015
	Ties: 1899, 1911, 1975
Aug 1918–May 1919 10-Month	53.6°F (12.0°C)	54.5°F (12.5°C)	-0.9°F (-0.5°C)	20th Coolest	Coolest since: 1917	1917
	53.6°F (12.0°C)	54.5°F (12.5°C)	-0.9°F (-0.5°C)	108th Warmest	Warmest since: 1918	2015
	Ties: 1952
Jul 1918–May 1919 11-Month	55.4°F (13.0°C)	56.4°F (13.6°C)	-1.0°F (-0.6°C)	15th Coolest	Coolest since: 1917	1917
	55.4°F (13.0°C)	56.4°F (13.6°C)	-1.0°F (-0.6°C)	113th Warmest	Warmest since: 1918	2015
	Ties: 1896, 1901, 1973
Jun 1918–May 1919 12-Month	56.9°F (13.8°C)	57.3°F (14.1°C)	-0.4°F (-0.3°C)	32nd Coolest	Coolest since: 1917	1917
	56.9°F (13.8°C)	57.3°F (14.1°C)	-0.4°F (-0.3°C)	96th Warmest	Warmest since: 1918	2015
	Ties: 1902, 1969, 1975, 1979
Dec 1917–May 1919 18-Month	54.2°F (12.3°C)	54.6°F (12.6°C)	-0.4°F (-0.3°C)	31st Coolest	Coolest since: 1918	1917
	54.2°F (12.3°C)	54.6°F (12.6°C)	-0.4°F (-0.3°C)	96th Warmest	Warmest since: 1915	2015
	Ties: 1902, 1929, 1938, 1942, 1973, 1974
Jun 1917–May 1919 24-Month	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1918	1913, 1917
	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	59th Warmest	Warmest since: 1905	2015
	Ties: 1905, 1947, 1970, 1971, 1980, 1984
Jun 1916–May 1919 36-Month	56.3°F (13.5°C)	57.4°F (14.1°C)	-1.1°F (-0.6°C)	5th Coolest	Coolest since: 1918	1913, 1917
	56.3°F (13.5°C)	57.4°F (14.1°C)	-1.1°F (-0.6°C)	121st Warmest	Warmest since: 1918	2016
	Ties: 1912, 1914, 1918, 1949
Jun 1915–May 1919 48-Month	56.4°F (13.6°C)	57.3°F (14.1°C)	-0.9°F (-0.5°C)	8th Coolest	Coolest since: 1918	1913
	56.4°F (13.6°C)	57.3°F (14.1°C)	-0.9°F (-0.5°C)	117th Warmest	Warmest since: 1916	2016, 2017, 2018
	Ties: 1922, 1923
Jun 1914–May 1919 60-Month	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	9th Coolest	Coolest since: 1917	1913, 1917
	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	115th Warmest	Warmest since: 1918	2018
	Ties: 1923, 1949

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings