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, May 2009

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 2009 1-Month	59.3°F (15.2°C)	54.3°F (12.4°C)	5.0°F (2.8°C)	123rd Coolest	Coolest since: 2008	1953
May 2009 1-Month	59.3°F (15.2°C)	54.3°F (12.4°C)	5.0°F (2.8°C)	6th Warmest	Warmest since: 2001	1934
Apr–May 2009 2-Month	52.3°F (11.3°C)	50.0°F (10.0°C)	2.3°F (1.3°C)	102nd Coolest	Coolest since: 2008	1975
	52.3°F (11.3°C)	50.0°F (10.0°C)	2.3°F (1.3°C)	27th Warmest	Warmest since: 2007	1934
	Ties: 1994, 2021
Mar–May 2009 3-Month	47.9°F (8.8°C)	46.1°F (7.8°C)	1.8°F (1.0°C)	95th Coolest	Coolest since: 2008	1917
	47.9°F (8.8°C)	46.1°F (7.8°C)	1.8°F (1.0°C)	34th Warmest	Warmest since: 2007	1934
	Ties: 1954
Feb–May 2009 4-Month	44.5°F (6.9°C)	42.7°F (5.9°C)	1.8°F (1.0°C)	101st Coolest	Coolest since: 2008	1933
	44.5°F (6.9°C)	42.7°F (5.9°C)	1.8°F (1.0°C)	28th Warmest	Warmest since: 2007	1934
	Ties: 1931, 1936, 2018
Jan–May 2009 5-Month	42.1°F (5.6°C)	39.8°F (4.3°C)	2.3°F (1.3°C)	108th Coolest	Coolest since: 2008	1917
Jan–May 2009 5-Month	42.1°F (5.6°C)	39.8°F (4.3°C)	2.3°F (1.3°C)	21st Warmest	Warmest since: 2007	1934
Dec 2008–May 2009 6-Month	39.9°F (4.4°C)	38.1°F (3.4°C)	1.8°F (1.0°C)	101st Coolest	Coolest since: 2008	1917
	39.9°F (4.4°C)	38.1°F (3.4°C)	1.8°F (1.0°C)	27th Warmest	Warmest since: 2007	1934
	Ties: 1900, 2005, 2006, 2021, 2022
Nov 2008–May 2009 7-Month	40.3°F (4.6°C)	38.1°F (3.4°C)	2.2°F (1.2°C)	111th Coolest	Coolest since: 2008	1917
Nov 2008–May 2009 7-Month	40.3°F (4.6°C)	38.1°F (3.4°C)	2.2°F (1.2°C)	17th Warmest	Warmest since: 2003	1934
Oct 2008–May 2009 8-Month	41.7°F (5.4°C)	39.6°F (4.2°C)	2.1°F (1.2°C)	117th Coolest	Coolest since: 2008	1917
Oct 2008–May 2009 8-Month	41.7°F (5.4°C)	39.6°F (4.2°C)	2.1°F (1.2°C)	11th Warmest	Warmest since: 2000	1934
Sep 2008–May 2009 9-Month	44.0°F (6.7°C)	41.9°F (5.5°C)	2.1°F (1.2°C)	113th Coolest	Coolest since: 2008	1917
	44.0°F (6.7°C)	41.9°F (5.5°C)	2.1°F (1.2°C)	15th Warmest	Warmest since: 2004	1934
	Ties: 1978, 2004
Aug 2008–May 2009 10-Month	46.8°F (8.2°C)	44.6°F (7.0°C)	2.2°F (1.2°C)	117th Coolest	Coolest since: 2008	1917
	46.8°F (8.2°C)	44.6°F (7.0°C)	2.2°F (1.2°C)	11th Warmest	Warmest since: 2004	1934
	Ties: 2004, 2016, 2022
Jul 2008–May 2009 11-Month	49.3°F (9.6°C)	47.1°F (8.4°C)	2.2°F (1.2°C)	117th Coolest	Coolest since: 2008	1917
	49.3°F (9.6°C)	47.1°F (8.4°C)	2.2°F (1.2°C)	11th Warmest	Warmest since: 2004	1934
	Ties: 2017
Jun 2008–May 2009 12-Month	50.6°F (10.3°C)	48.5°F (9.2°C)	2.1°F (1.1°C)	115th Coolest	Coolest since: 2008	1917
	50.6°F (10.3°C)	48.5°F (9.2°C)	2.1°F (1.1°C)	13th Warmest	Warmest since: 2004	1934
	Ties: 2003
Dec 2007–May 2009 18-Month	46.0°F (7.8°C)	45.0°F (7.2°C)	1.0°F (0.6°C)	93rd Coolest	Coolest since: 1999	1917, 1933
	46.0°F (7.8°C)	45.0°F (7.2°C)	1.0°F (0.6°C)	34th Warmest	Warmest since: 2008	2015
	Ties: 1934, 1992, 2020
Jun 2007–May 2009 24-Month	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F (0.8°C)	106th Coolest	Coolest since: 2008	1917
	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F (0.8°C)	21st Warmest	Warmest since: 2007	2015, 2016
	Ties: 2020
Jun 2006–May 2009 36-Month	50.0°F (10.0°C)	48.5°F (9.2°C)	1.5°F (0.8°C)	111th Coolest	Coolest since: 2008	1917
	50.0°F (10.0°C)	48.5°F (9.2°C)	1.5°F (0.8°C)	15th Warmest	Warmest since: 2006	2017
	Ties: 1997, 2006
Jun 2005–May 2009 48-Month	49.9°F (9.9°C)	48.4°F (9.1°C)	1.5°F (0.8°C)	110th Coolest	Coolest since: 2008	1917
	49.9°F (9.9°C)	48.4°F (9.1°C)	1.5°F (0.8°C)	15th Warmest	Warmest since: 2007	2018
	Ties: 2002
Jun 2004–May 2009 60-Month	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F (0.8°C)	109th Coolest	Coolest since: 2002	1917
	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F (0.8°C)	15th Warmest	Warmest since: 2008	2018
	Ties: 2000

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