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.

Great Basin

Average Temperature Rankings, December 1909

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1909 1-Month	21.7°F (-5.7°C)	29.7°F (-1.3°C)	-8.0°F (-4.4°C)	1st Coolest	Coolest since: 1909	1909, 1932
	21.7°F (-5.7°C)	29.7°F (-1.3°C)	-8.0°F (-4.4°C)	128th Warmest	Warmest since: 1908	1917
	Ties: 1932
Nov–Dec 1909 2-Month	30.0°F (-1.1°C)	33.6°F (0.9°C)	-3.6°F (-2.0°C)	12th Coolest	Coolest since: 1905	1931
	30.0°F (-1.1°C)	33.6°F (0.9°C)	-3.6°F (-2.0°C)	117th Warmest	Warmest since: 1908	1917
	Ties: 1978, 1990
Oct–Dec 1909 3-Month	36.6°F (2.6°C)	39.0°F (3.9°C)	-2.4°F (-1.3°C)	17th Coolest	Coolest since: 1908	1919
Oct–Dec 1909 3-Month	36.6°F (2.6°C)	39.0°F (3.9°C)	-2.4°F (-1.3°C)	112th Warmest	Warmest since: 1907	1950
Sep–Dec 1909 4-Month	42.3°F (5.7°C)	44.4°F (6.9°C)	-2.1°F (-1.2°C)	16th Coolest	Coolest since: 1908	1971
Sep–Dec 1909 4-Month	42.3°F (5.7°C)	44.4°F (6.9°C)	-2.1°F (-1.2°C)	113th Warmest	Warmest since: 1907	2014
Aug–Dec 1909 5-Month	47.8°F (8.8°C)	49.4°F (9.7°C)	-1.6°F (-0.9°C)	15th Coolest	Coolest since: 1908	1916
Aug–Dec 1909 5-Month	47.8°F (8.8°C)	49.4°F (9.7°C)	-1.6°F (-0.9°C)	114th Warmest	Warmest since: 1907	2020
Jul–Dec 1909 6-Month	51.5°F (10.8°C)	53.1°F (11.7°C)	-1.6°F (-0.9°C)	12th Coolest	Coolest since: 1908	1916
Jul–Dec 1909 6-Month	51.5°F (10.8°C)	53.1°F (11.7°C)	-1.6°F (-0.9°C)	117th Warmest	Warmest since: 1907	2020
Jun–Dec 1909 7-Month	53.5°F (11.9°C)	54.6°F (12.6°C)	-1.1°F (-0.7°C)	22nd Coolest	Coolest since: 1908	1916
	53.5°F (11.9°C)	54.6°F (12.6°C)	-1.1°F (-0.7°C)	107th Warmest	Warmest since: 1906	2021
	Ties: 1897, 1899, 1914, 1951
May–Dec 1909 8-Month	53.2°F (11.8°C)	54.5°F (12.5°C)	-1.3°F (-0.7°C)	12th Coolest	Coolest since: 1908	1916
	53.2°F (11.8°C)	54.5°F (12.5°C)	-1.3°F (-0.7°C)	117th Warmest	Warmest since: 1906	2021
	Ties: 1923, 1948, 1965, 1978
Apr–Dec 1909 9-Month	52.3°F (11.3°C)	53.6°F (12.0°C)	-1.3°F (-0.7°C)	12th Coolest	Coolest since: 1908	1912
	52.3°F (11.3°C)	53.6°F (12.0°C)	-1.3°F (-0.7°C)	117th Warmest	Warmest since: 1907	2021
	Ties: 1895, 1899, 1920, 1930, 1948, 1965, 1978
Mar–Dec 1909 10-Month	50.7°F (10.4°C)	52.0°F (11.1°C)	-1.3°F (-0.7°C)	12th Coolest	Coolest since: 1908	1912
	50.7°F (10.4°C)	52.0°F (11.1°C)	-1.3°F (-0.7°C)	117th Warmest	Warmest since: 1907	1934, 2021
	Ties: 1895, 1920, 1945, 1965
Feb–Dec 1909 11-Month	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	17th Coolest	Coolest since: 1908	1911, 1912
	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	112th Warmest	Warmest since: 1907	1934
	Ties: 1899, 1955, 1965
Jan–Dec 1909 12-Month	47.9°F (8.8°C)	48.5°F (9.2°C)	-0.6°F (-0.4°C)	35th Coolest	Coolest since: 1908	1944
	47.9°F (8.8°C)	48.5°F (9.2°C)	-0.6°F (-0.4°C)	94th Warmest	Warmest since: 1907	1934
	Ties: 1902, 1929, 1933, 1942, 1951, 1957
Jul 1908–Dec 1909 18-Month	49.1°F (9.5°C)	50.0°F (10.0°C)	-0.9°F (-0.5°C)	18th Coolest	Coolest since: 1908	1912, 1913
	49.1°F (9.5°C)	50.0°F (10.0°C)	-0.9°F (-0.5°C)	110th Warmest	Warmest since: 1907	1934
	Ties: 1920, 1924, 1952, 1975
Jan 1908–Dec 1909 24-Month	47.5°F (8.6°C)	48.4°F (9.1°C)	-0.9°F (-0.5°C)	14th Coolest	Coolest since: 1903	1912, 1913
Jan 1908–Dec 1909 24-Month	47.5°F (8.6°C)	48.4°F (9.1°C)	-0.9°F (-0.5°C)	114th Warmest	Warmest since: 1908	2015
Jan 1907–Dec 1909 36-Month	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	18th Coolest	Coolest since: 1908	1913
	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	109th Warmest	Warmest since: 1907	2016
	Ties: 1907, 1925, 1932, 1945, 1965, 1985
Jan 1906–Dec 1909 48-Month	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	19th Coolest	Coolest since: 1908	1914
	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	107th Warmest	Warmest since: 1907	2017
	Ties: 1900, 1920, 1932, 1933, 1950
Jan 1905–Dec 1909 60-Month	47.7°F (8.7°C)	48.4°F (9.1°C)	-0.7°F (-0.4°C)	10th Coolest	Coolest since: 1907	1899, 1915, 1916
	47.7°F (8.7°C)	48.4°F (9.1°C)	-0.7°F (-0.4°C)	115th Warmest	Warmest since: 1908	2018
	Ties: 1906, 1907, 1914, 1952

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings