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 1999

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1999 1-Month	61.3°F (16.3°C)	60.8°F (16.0°C)	0.5°F (0.3°C)	68th Coolest	Coolest since: 1996	1912
	61.3°F (16.3°C)	60.8°F (16.0°C)	0.5°F (0.3°C)	61st Warmest	Warmest since: 1998	2022
	Ties: 1976, 1989
Aug–Sep 1999 2-Month	65.2°F (18.4°C)	65.2°F (18.4°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1993	1900
	65.2°F (18.4°C)	65.2°F (18.4°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1998	2020
	Ties: 1904, 1910, 1914, 1917, 1956
Jul–Sep 1999 3-Month	67.1°F (19.5°C)	67.2°F (19.6°C)	-0.1°F (-0.1°C)	54th Coolest	Coolest since: 1993	1912
	67.1°F (19.5°C)	67.2°F (19.6°C)	-0.1°F (-0.1°C)	75th Warmest	Warmest since: 1998	2022
	Ties: 1947, 1959, 1980
Jun–Sep 1999 4-Month	66.2°F (19.0°C)	66.3°F (19.1°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1995	1907
	66.2°F (19.0°C)	66.3°F (19.1°C)	-0.1°F (-0.1°C)	82nd Warmest	Warmest since: 1998	2021
	Ties: 1928, 1929, 1932, 1951, 1955, 1957, 1971, 1986
May–Sep 1999 5-Month	63.5°F (17.5°C)	63.8°F (17.7°C)	-0.3°F (-0.2°C)	44th Coolest	Coolest since: 1998	1907, 1965
	63.5°F (17.5°C)	63.8°F (17.7°C)	-0.3°F (-0.2°C)	85th Warmest	Warmest since: 1997	2021
	Ties: 1904
Apr–Sep 1999 6-Month	59.9°F (15.5°C)	60.9°F (16.1°C)	-1.0°F (-0.6°C)	28th Coolest	Coolest since: 1995	1912
	59.9°F (15.5°C)	60.9°F (16.1°C)	-1.0°F (-0.6°C)	101st Warmest	Warmest since: 1998	2021
	Ties: 1900, 1905, 1967, 1993
Mar–Sep 1999 7-Month	57.2°F (14.0°C)	57.7°F (14.3°C)	-0.5°F (-0.3°C)	48th Coolest	Coolest since: 1998	1912
	57.2°F (14.0°C)	57.7°F (14.3°C)	-0.5°F (-0.3°C)	81st Warmest	Warmest since: 1997	1934, 2007, 2021
	Ties: 1957, 1962
Feb–Sep 1999 8-Month	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	53rd Coolest	Coolest since: 1998	1903
	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1997	1934, 2015
	Ties: 1938, 1968, 1978, 2010
Jan–Sep 1999 9-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1998	1917
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1997	2015
	Ties: 1978, 2008
Dec 1998–Sep 1999 10-Month	49.7°F (9.8°C)	49.4°F (9.7°C)	0.3°F (0.1°C)	65th Coolest	Coolest since: 1998	1917
	49.7°F (9.8°C)	49.4°F (9.7°C)	0.3°F (0.1°C)	63rd Warmest	Warmest since: 1997	2015
	Ties: 1914
Nov 1998–Sep 1999 11-Month	48.7°F (9.3°C)	48.3°F (9.1°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1998	1917
	48.7°F (9.3°C)	48.3°F (9.1°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1997	2015
	Ties: 1919, 1927, 1969, 1977
Oct 1998–Sep 1999 12-Month	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	59th Coolest	Coolest since: 1998	1917
	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1998	2015
	Ties: 1914, 1946, 1947, 1967, 1998
Apr 1998–Sep 1999 18-Month	52.4°F (11.3°C)	52.5°F (11.4°C)	-0.1°F (-0.1°C)	50th Coolest	Coolest since: 1985	1917
	52.4°F (11.3°C)	52.5°F (11.4°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1998	2015
	Ties: 1900, 1914, 1921
Oct 1997–Sep 1999 24-Month	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	71st Coolest	Coolest since: 1986	1913
	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1998	2016
	Ties: 1901, 1947, 1969
Oct 1996–Sep 1999 36-Month	49.0°F (9.4°C)	48.5°F (9.2°C)	0.5°F (0.2°C)	85th Coolest	Coolest since: 1995	1917
	49.0°F (9.4°C)	48.5°F (9.2°C)	0.5°F (0.2°C)	41st Warmest	Warmest since: 1998	2017
	Ties: 1991
Oct 1995–Sep 1999 48-Month	49.5°F (9.7°C)	48.4°F (9.1°C)	1.1°F (0.6°C)	104th Coolest	Coolest since: 1998	1915
	49.5°F (9.7°C)	48.4°F (9.1°C)	1.1°F (0.6°C)	21st Warmest	Warmest since: 1997	2018
	Ties: 1937, 1990, 1992, 2012, 2013
Oct 1994–Sep 1999 60-Month	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	93rd Coolest	Coolest since: 1995	1917
	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	31st Warmest	Warmest since: 1998	2018
	Ties: 1981, 1991

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings