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, September 2015

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 2015 1-Month	65.2°F (18.4°C)	60.8°F (16.0°C)	4.4°F (2.4°C)	125th Coolest	Coolest since: 2014	1912
September 2015 1-Month	65.2°F (18.4°C)	60.8°F (16.0°C)	4.4°F (2.4°C)	4th Warmest	Warmest since: 2009	2022
Aug–Sep 2015 2-Month	68.4°F (20.2°C)	65.1°F (18.4°C)	3.3°F (1.8°C)	123rd Coolest	Coolest since: 2014	1900
Aug–Sep 2015 2-Month	68.4°F (20.2°C)	65.1°F (18.4°C)	3.3°F (1.8°C)	6th Warmest	Warmest since: 2012	2020
Jul–Sep 2015 3-Month	69.0°F (20.6°C)	67.2°F (19.6°C)	1.8°F (1.0°C)	106th Coolest	Coolest since: 2010	1912
	69.0°F (20.6°C)	67.2°F (19.6°C)	1.8°F (1.0°C)	23rd Warmest	Warmest since: 2014	2022
	Ties: 1933, 1960, 1990
Jun–Sep 2015 4-Month	69.3°F (20.7°C)	66.2°F (19.0°C)	3.1°F (1.7°C)	122nd Coolest	Coolest since: 2014	1907
	69.3°F (20.7°C)	66.2°F (19.0°C)	3.1°F (1.7°C)	7th Warmest	Warmest since: 2012	2021
	Ties: 2012
May–Sep 2015 5-Month	66.3°F (19.1°C)	63.8°F (17.7°C)	2.5°F (1.4°C)	117th Coolest	Coolest since: 2014	1907, 1965
	66.3°F (19.1°C)	63.8°F (17.7°C)	2.5°F (1.4°C)	12th Warmest	Warmest since: 2013	2021
	Ties: 2000, 2006, 2013
Apr–Sep 2015 6-Month	63.1°F (17.3°C)	60.8°F (16.0°C)	2.3°F (1.3°C)	114th Coolest	Coolest since: 2014	1912
	63.1°F (17.3°C)	60.8°F (16.0°C)	2.3°F (1.3°C)	15th Warmest	Warmest since: 2013	2021
	Ties: 2006, 2013, 2016, 2017
Mar–Sep 2015 7-Month	60.7°F (15.9°C)	57.6°F (14.2°C)	3.1°F (1.7°C)	122nd Coolest	Coolest since: 2014	1912
	60.7°F (15.9°C)	57.6°F (14.2°C)	3.1°F (1.7°C)	7th Warmest	Warmest since: 2012	1934, 2007, 2021
	Ties: 2001, 2022
Feb–Sep 2015 8-Month	58.3°F (14.6°C)	54.5°F (12.5°C)	3.8°F (2.1°C)	128th Coolest	Coolest since: 2014	1903
	58.3°F (14.6°C)	54.5°F (12.5°C)	3.8°F (2.1°C)	1st Warmest	Warmest since: 1934	1934, 2015
	Ties: 1934
Jan–Sep 2015 9-Month	55.8°F (13.2°C)	51.6°F (10.9°C)	4.2°F (2.3°C)	128th Coolest	Coolest since: 2014	1917
Jan–Sep 2015 9-Month	55.8°F (13.2°C)	51.6°F (10.9°C)	4.2°F (2.3°C)	1st Warmest	Warmest to Date	2015
Dec 2014–Sep 2015 10-Month	53.6°F (12.0°C)	49.4°F (9.7°C)	4.2°F (2.3°C)	127th Coolest	Coolest since: 2014	1917
Dec 2014–Sep 2015 10-Month	53.6°F (12.0°C)	49.4°F (9.7°C)	4.2°F (2.3°C)	1st Warmest	Warmest to Date	2015
Nov 2014–Sep 2015 11-Month	52.4°F (11.3°C)	48.4°F (9.1°C)	4.0°F (2.2°C)	127th Coolest	Coolest since: 2014	1917
Nov 2014–Sep 2015 11-Month	52.4°F (11.3°C)	48.4°F (9.1°C)	4.0°F (2.2°C)	1st Warmest	Warmest to Date	2015
Oct 2014–Sep 2015 12-Month	52.5°F (11.4°C)	48.4°F (9.1°C)	4.1°F (2.3°C)	127th Coolest	Coolest since: 2014	1917
Oct 2014–Sep 2015 12-Month	52.5°F (11.4°C)	48.4°F (9.1°C)	4.1°F (2.3°C)	1st Warmest	Warmest to Date	2015
Apr 2014–Sep 2015 18-Month	56.0°F (13.3°C)	52.5°F (11.4°C)	3.5°F (1.9°C)	127th Coolest	Coolest since: 2014	1917
Apr 2014–Sep 2015 18-Month	56.0°F (13.3°C)	52.5°F (11.4°C)	3.5°F (1.9°C)	1st Warmest	Warmest to Date	2015
Oct 2013–Sep 2015 24-Month	51.5°F (10.8°C)	48.4°F (9.1°C)	3.1°F (1.7°C)	125th Coolest	Coolest since: 2014	1913
Oct 2013–Sep 2015 24-Month	51.5°F (10.8°C)	48.4°F (9.1°C)	3.1°F (1.7°C)	2nd Warmest	Warmest to Date	2016
Oct 2012–Sep 2015 36-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	121st Coolest	Coolest since: 2014	1917
Oct 2012–Sep 2015 36-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	5th Warmest	Warmest to Date	2017
Oct 2011–Sep 2015 48-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	122nd Coolest	Coolest since: 2014	1915
Oct 2011–Sep 2015 48-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	3rd Warmest	Warmest to Date	2018
Oct 2010–Sep 2015 60-Month	50.6°F (10.3°C)	48.4°F (9.1°C)	2.2°F (1.2°C)	117th Coolest	Coolest since: 2014	1917
	50.6°F (10.3°C)	48.4°F (9.1°C)	2.2°F (1.2°C)	7th Warmest	Warmest to Date	2018
	Ties: 2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings