Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Maryland

Minimum 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	57.8°F (14.3°C)	56.3°F (13.5°C)	1.5°F (0.8°C)	80th Coolest	Coolest since: 1997	1914, 1918
	57.8°F (14.3°C)	56.3°F (13.5°C)	1.5°F (0.8°C)	49th Warmest	Warmest since: 1998	2018
	Ties: 1993, 2020
Aug–Sep 1999 2-Month	61.0°F (16.1°C)	59.6°F (15.3°C)	1.4°F (0.8°C)	87th Coolest	Coolest since: 1997	1963
	61.0°F (16.1°C)	59.6°F (15.3°C)	1.4°F (0.8°C)	42nd Warmest	Warmest since: 1998	2018
	Ties: 1971
Jul–Sep 1999 3-Month	63.2°F (17.3°C)	61.3°F (16.3°C)	1.9°F (1.0°C)	102nd Coolest	Coolest since: 1998	1963
	63.2°F (17.3°C)	61.3°F (16.3°C)	1.9°F (1.0°C)	27th Warmest	Warmest since: 1993	2018
	Ties: 1961, 2017
Jun–Sep 1999 4-Month	62.5°F (16.9°C)	60.9°F (16.1°C)	1.6°F (0.8°C)	103rd Coolest	Coolest since: 1998	1927
	62.5°F (16.9°C)	60.9°F (16.1°C)	1.6°F (0.8°C)	26th Warmest	Warmest since: 1995	2018
	Ties: 1921, 1959
May–Sep 1999 5-Month	60.2°F (15.7°C)	58.9°F (14.9°C)	1.3°F (0.8°C)	93rd Coolest	Coolest since: 1997	1963, 1967
	60.2°F (15.7°C)	58.9°F (14.9°C)	1.3°F (0.8°C)	36th Warmest	Warmest since: 1998	2018
	Ties: 1955
Apr–Sep 1999 6-Month	57.1°F (13.9°C)	55.9°F (13.3°C)	1.2°F (0.6°C)	97th Coolest	Coolest since: 1997	1907, 1927
	57.1°F (13.9°C)	55.9°F (13.3°C)	1.2°F (0.6°C)	32nd Warmest	Warmest since: 1998	2018
	Ties: 1898, 1980, 1989, 1993, 2007, 2008
Mar–Sep 1999 7-Month	53.3°F (11.8°C)	52.5°F (11.4°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1997	1967
	53.3°F (11.8°C)	52.5°F (11.4°C)	0.8°F (0.4°C)	41st Warmest	Warmest since: 1998	2010
	Ties: 1938, 1980, 1985, 1986, 1993
Feb–Sep 1999 8-Month	50.1°F (10.1°C)	49.0°F (9.4°C)	1.1°F (0.7°C)	92nd Coolest	Coolest since: 1997	1907, 1963
	50.1°F (10.1°C)	49.0°F (9.4°C)	1.1°F (0.7°C)	37th Warmest	Warmest since: 1998	2012
	Ties: 1939
Jan–Sep 1999 9-Month	47.4°F (8.6°C)	46.2°F (7.9°C)	1.2°F (0.7°C)	99th Coolest	Coolest since: 1997	1940
	47.4°F (8.6°C)	46.2°F (7.9°C)	1.2°F (0.7°C)	30th Warmest	Warmest since: 1998	2012
	Ties: 1906, 1938, 1939
Dec 1998–Sep 1999 10-Month	45.9°F (7.7°C)	44.2°F (6.8°C)	1.7°F (0.9°C)	106th Coolest	Coolest since: 1997	1904
	45.9°F (7.7°C)	44.2°F (6.8°C)	1.7°F (0.9°C)	22nd Warmest	Warmest since: 1998	2012
	Ties: 1953, 2005
Nov 1998–Sep 1999 11-Month	44.9°F (7.2°C)	43.4°F (6.3°C)	1.5°F (0.9°C)	101st Coolest	Coolest since: 1997	1904
	44.9°F (7.2°C)	43.4°F (6.3°C)	1.5°F (0.9°C)	27th Warmest	Warmest since: 1998	2012
	Ties: 1898
Oct 1998–Sep 1999 12-Month	45.0°F (7.2°C)	43.5°F (6.4°C)	1.5°F (0.8°C)	103rd Coolest	Coolest since: 1997	1918
	45.0°F (7.2°C)	43.5°F (6.4°C)	1.5°F (0.8°C)	25th Warmest	Warmest since: 1998	2012
	Ties: 1898, 1957
Apr 1998–Sep 1999 18-Month	49.4°F (9.7°C)	47.7°F (8.7°C)	1.7°F (1.0°C)	110th Coolest	Coolest since: 1998	1918
Apr 1998–Sep 1999 18-Month	49.4°F (9.7°C)	47.7°F (8.7°C)	1.7°F (1.0°C)	18th Warmest	Warmest since: 1991	2012
Oct 1997–Sep 1999 24-Month	45.7°F (7.6°C)	43.5°F (6.4°C)	2.2°F (1.2°C)	116th Coolest	Coolest since: 1998	1905
Oct 1997–Sep 1999 24-Month	45.7°F (7.6°C)	43.5°F (6.4°C)	2.2°F (1.2°C)	11th Warmest	Warmest to Date	2017
Oct 1996–Sep 1999 36-Month	45.0°F (7.2°C)	43.5°F (6.4°C)	1.5°F (0.8°C)	107th Coolest	Coolest since: 1998	1918
	45.0°F (7.2°C)	43.5°F (6.4°C)	1.5°F (0.8°C)	19th Warmest	Warmest since: 1991	2018, 2021
	Ties: 1991, 2016
Oct 1995–Sep 1999 48-Month	44.6°F (7.0°C)	43.5°F (6.4°C)	1.1°F (0.6°C)	99th Coolest	Coolest since: 1998	1905
	44.6°F (7.0°C)	43.5°F (6.4°C)	1.1°F (0.6°C)	26th Warmest	Warmest since: 1998	2019, 2020
	Ties: 1991, 1998
Oct 1994–Sep 1999 60-Month	44.7°F (7.1°C)	43.5°F (6.4°C)	1.2°F (0.7°C)	102nd Coolest	Coolest since: 1998	1967
	44.7°F (7.1°C)	43.5°F (6.4°C)	1.2°F (0.7°C)	22nd Warmest	Warmest since: 1993	2020
	Ties: 1993, 2000, 2001

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published February 2023, retrieved on February 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings