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

Average Temperature Rankings, September 1990

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1990 1-Month	65.8°F (18.8°C)	67.0°F (19.4°C)	-1.2°F (-0.6°C)	35th Coolest	Coolest since: 1988	1917
	65.8°F (18.8°C)	67.0°F (19.4°C)	-1.2°F (-0.6°C)	94th Warmest	Warmest since: 1989	2018
	Ties: 1913
Aug–Sep 1990 2-Month	69.5°F (20.8°C)	70.1°F (21.2°C)	-0.6°F (-0.4°C)	40th Coolest	Coolest since: 1984	1940, 1963
	69.5°F (20.8°C)	70.1°F (21.2°C)	-0.6°F (-0.4°C)	89th Warmest	Warmest since: 1989	2018
	Ties: 1929, 1948, 1974, 1997
Jul–Sep 1990 3-Month	71.7°F (22.1°C)	71.8°F (22.1°C)	-0.1°F (0.0°C)	53rd Coolest	Coolest since: 1984	1962
	71.7°F (22.1°C)	71.8°F (22.1°C)	-0.1°F (0.0°C)	76th Warmest	Warmest since: 1989	2016
	Ties: 1971
Jun–Sep 1990 4-Month	71.6°F (22.0°C)	71.5°F (21.9°C)	0.1°F (0.1°C)	54th Coolest	Coolest since: 1985	1927
	71.6°F (22.0°C)	71.5°F (21.9°C)	0.1°F (0.1°C)	75th Warmest	Warmest since: 1989	2010
	Ties: 1966, 2001
May–Sep 1990 5-Month	69.5°F (20.8°C)	69.7°F (20.9°C)	-0.2°F (-0.1°C)	45th Coolest	Coolest since: 1984	1907, 1967
	69.5°F (20.8°C)	69.7°F (20.9°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1989	2010
	Ties: 1905, 1914, 1919, 1945, 1951, 1964, 1968, 1978, 2000
Apr–Sep 1990 6-Month	66.8°F (19.3°C)	66.7°F (19.3°C)	0.1°F (0.0°C)	55th Coolest	Coolest since: 1984	1907
	66.8°F (19.3°C)	66.7°F (19.3°C)	0.1°F (0.0°C)	74th Warmest	Warmest since: 1989	2010
	Ties: 1947, 1965, 1968
Mar–Sep 1990 7-Month	63.9°F (17.7°C)	63.3°F (17.4°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1989	1924
	63.9°F (17.7°C)	63.3°F (17.4°C)	0.6°F (0.3°C)	48th Warmest	Warmest since: 1988	2010
	Ties: 1933, 1943, 1993
Feb–Sep 1990 8-Month	61.2°F (16.2°C)	59.6°F (15.3°C)	1.6°F (0.9°C)	110th Coolest	Coolest since: 1989	1907
	61.2°F (16.2°C)	59.6°F (15.3°C)	1.6°F (0.9°C)	19th Warmest	Warmest since: 1977	2012
	Ties: 1925, 1930, 1945, 1953, 2008
Jan–Sep 1990 9-Month	58.9°F (14.9°C)	56.6°F (13.7°C)	2.3°F (1.2°C)	115th Coolest	Coolest since: 1989	1940
Jan–Sep 1990 9-Month	58.9°F (14.9°C)	56.6°F (13.7°C)	2.3°F (1.2°C)	14th Warmest	Warmest since: 1921	2012
Dec 1989–Sep 1990 10-Month	55.5°F (13.1°C)	54.5°F (12.5°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1989	1904
	55.5°F (13.1°C)	54.5°F (12.5°C)	1.0°F (0.6°C)	39th Warmest	Warmest since: 1987	2012
	Ties: 1925, 1942
Nov 1989–Sep 1990 11-Month	54.5°F (12.5°C)	53.6°F (12.0°C)	0.9°F (0.5°C)	88th Coolest	Coolest since: 1989	1904
	54.5°F (12.5°C)	53.6°F (12.0°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1987	2012
	Ties: 1952, 1980, 1987
Oct 1989–Sep 1990 12-Month	54.7°F (12.6°C)	53.8°F (12.1°C)	0.9°F (0.5°C)	87th Coolest	Coolest since: 1989	1904
	54.7°F (12.6°C)	53.8°F (12.1°C)	0.9°F (0.5°C)	41st Warmest	Warmest since: 1987	2012
	Ties: 1974
Apr 1989–Sep 1990 18-Month	58.8°F (14.9°C)	58.1°F (14.5°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 1989	1904, 1918
	58.8°F (14.9°C)	58.1°F (14.5°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1988	2012
	Ties: 1933, 1976, 1985
Oct 1988–Sep 1990 24-Month	54.4°F (12.4°C)	53.8°F (12.1°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1989	1905
	54.4°F (12.4°C)	53.8°F (12.1°C)	0.6°F (0.3°C)	41st Warmest	Warmest since: 1988	2017
	Ties: 1942, 1952, 1988
Oct 1987–Sep 1990 36-Month	54.3°F (12.4°C)	53.8°F (12.1°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1989	1905, 1918
	54.3°F (12.4°C)	53.8°F (12.1°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1989	2018
	Ties: 1922, 1931, 1943, 1952, 1975, 1989
Oct 1986–Sep 1990 48-Month	54.4°F (12.4°C)	53.7°F (12.1°C)	0.7°F (0.3°C)	84th Coolest	Coolest since: 1985	1905
	54.4°F (12.4°C)	53.7°F (12.1°C)	0.7°F (0.3°C)	41st Warmest	Warmest since: 1989	2019
	Ties: 1934, 1957
Oct 1985–Sep 1990 60-Month	54.5°F (12.5°C)	53.7°F (12.1°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1988	1905, 1908
	54.5°F (12.5°C)	53.7°F (12.1°C)	0.8°F (0.4°C)	36th Warmest	Warmest since: 1989	2020
	Ties: 1932, 1934, 1957, 1976

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 10, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings