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 1911

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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 1911 1-Month	57.1°F (13.9°C)	60.7°F (15.9°C)	-3.6°F (-2.0°C)	12th Coolest	Coolest since: 1908	1977
	57.1°F (13.9°C)	60.7°F (15.9°C)	-3.6°F (-2.0°C)	117th Warmest	Warmest since: 1910	2001
	Ties: 1921
Apr–May 1911 2-Month	54.5°F (12.5°C)	57.4°F (14.1°C)	-2.9°F (-1.6°C)	9th Coolest	Coolest since: 1896	1967
Apr–May 1911 2-Month	54.5°F (12.5°C)	57.4°F (14.1°C)	-2.9°F (-1.6°C)	120th Warmest	Warmest since: 1910	1992
Mar–May 1911 3-Month	53.0°F (11.7°C)	54.5°F (12.5°C)	-1.5°F (-0.8°C)	24th Coolest	Coolest since: 1909	1917
	53.0°F (11.7°C)	54.5°F (12.5°C)	-1.5°F (-0.8°C)	105th Warmest	Warmest since: 1910	1934
	Ties: 1899, 1903, 1909
Feb–May 1911 4-Month	49.8°F (9.9°C)	52.2°F (11.2°C)	-2.4°F (-1.3°C)	7th Coolest	Coolest since: 1903	1917
	49.8°F (9.9°C)	52.2°F (11.2°C)	-2.4°F (-1.3°C)	122nd Warmest	Warmest since: 1910	1934
	Ties: 1955
Jan–May 1911 5-Month	48.4°F (9.1°C)	50.2°F (10.1°C)	-1.8°F (-1.0°C)	10th Coolest	Coolest since: 1903	1917
	48.4°F (9.1°C)	50.2°F (10.1°C)	-1.8°F (-1.0°C)	119th Warmest	Warmest since: 1910	2015
	Ties: 1929, 1948, 1964
Dec 1910–May 1911 6-Month	47.9°F (8.8°C)	49.1°F (9.5°C)	-1.2°F (-0.7°C)	19th Coolest	Coolest since: 1903	1917
	47.9°F (8.8°C)	49.1°F (9.5°C)	-1.2°F (-0.7°C)	109th Warmest	Warmest since: 1910	2015
	Ties: 1898, 1944
Nov 1910–May 1911 7-Month	48.1°F (8.9°C)	49.1°F (9.5°C)	-1.0°F (-0.6°C)	21st Coolest	Coolest since: 1903	1917
	48.1°F (8.9°C)	49.1°F (9.5°C)	-1.0°F (-0.6°C)	107th Warmest	Warmest since: 1910	2015
	Ties: 1921
Oct 1910–May 1911 8-Month	49.6°F (9.8°C)	50.4°F (10.2°C)	-0.8°F (-0.4°C)	27th Coolest	Coolest since: 1909	1917
Oct 1910–May 1911 8-Month	49.6°F (9.8°C)	50.4°F (10.2°C)	-0.8°F (-0.4°C)	101st Warmest	Warmest since: 1910	2015
Sep 1910–May 1911 9-Month	51.6°F (10.9°C)	52.4°F (11.3°C)	-0.8°F (-0.4°C)	23rd Coolest	Coolest since: 1909	1917
	51.6°F (10.9°C)	52.4°F (11.3°C)	-0.8°F (-0.4°C)	105th Warmest	Warmest since: 1910	2015
	Ties: 1899, 1919, 1975
Aug 1910–May 1911 10-Month	53.8°F (12.1°C)	54.6°F (12.6°C)	-0.8°F (-0.5°C)	27th Coolest	Coolest since: 1909	1917
	53.8°F (12.1°C)	54.6°F (12.6°C)	-0.8°F (-0.5°C)	101st Warmest	Warmest since: 1910	2015
	Ties: 1971, 1975
Jul 1910–May 1911 11-Month	55.7°F (13.2°C)	56.4°F (13.6°C)	-0.7°F (-0.4°C)	26th Coolest	Coolest since: 1909	1917
	55.7°F (13.2°C)	56.4°F (13.6°C)	-0.7°F (-0.4°C)	102nd Warmest	Warmest since: 1910	2015
	Ties: 1932, 1945, 1969, 1983
Jun 1910–May 1911 12-Month	56.6°F (13.7°C)	57.4°F (14.1°C)	-0.8°F (-0.4°C)	21st Coolest	Coolest since: 1909	1917
	56.6°F (13.7°C)	57.4°F (14.1°C)	-0.8°F (-0.4°C)	107th Warmest	Warmest since: 1910	2015
	Ties: 1901, 1944, 1952, 1973, 1983
Dec 1909–May 1911 18-Month	54.1°F (12.3°C)	54.6°F (12.6°C)	-0.5°F (-0.3°C)	29th Coolest	Coolest since: 1910	1917
	54.1°F (12.3°C)	54.6°F (12.6°C)	-0.5°F (-0.3°C)	98th Warmest	Warmest since: 1907	2015
	Ties: 1983
Jun 1909–May 1911 24-Month	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	19th Coolest	Coolest since: 1910	1913, 1917
	56.7°F (13.7°C)	57.4°F (14.1°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1908	2015
	Ties: 1908, 1916, 1923
Jun 1908–May 1911 36-Month	56.6°F (13.7°C)	57.4°F (14.1°C)	-0.8°F (-0.4°C)	15th Coolest	Coolest since: 1910	1913, 1917
	56.6°F (13.7°C)	57.4°F (14.1°C)	-0.8°F (-0.4°C)	111th Warmest	Warmest since: 1909	2016
	Ties: 1904, 1909
Jun 1907–May 1911 48-Month	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	10th Coolest	Coolest to Date	1913
	56.5°F (13.6°C)	57.4°F (14.1°C)	-0.9°F (-0.5°C)	115th Warmest	Warmest since: 1910	2016, 2017, 2018
	Ties: 1919, 1950
Jun 1906–May 1911 60-Month	56.6°F (13.7°C)	57.3°F (14.1°C)	-0.7°F (-0.4°C)	12th Coolest	Coolest since: 1910	1913, 1917
	56.6°F (13.7°C)	57.3°F (14.1°C)	-0.7°F (-0.4°C)	112th Warmest	Warmest since: 1910	2018
	Ties: 1910, 1918, 1924

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings