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 1940

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1940 1-Month	63.9°F (17.7°C)	67.0°F (19.4°C)	-3.1°F (-1.7°C)	9th Coolest	Coolest since: 1937	1917
	63.9°F (17.7°C)	67.0°F (19.4°C)	-3.1°F (-1.7°C)	120th Warmest	Warmest since: 1939	2018
	Ties: 1914
Aug–Sep 1940 2-Month	67.5°F (19.7°C)	70.1°F (21.2°C)	-2.6°F (-1.5°C)	1st Coolest	Coolest since: 1940	1940, 1963
	67.5°F (19.7°C)	70.1°F (21.2°C)	-2.6°F (-1.5°C)	128th Warmest	Warmest since: 1939	2018
	Ties: 1963
Jul–Sep 1940 3-Month	69.9°F (21.1°C)	71.8°F (22.1°C)	-1.9°F (-1.0°C)	8th Coolest	Coolest since: 1927	1962
Jul–Sep 1940 3-Month	69.9°F (21.1°C)	71.8°F (22.1°C)	-1.9°F (-1.0°C)	121st Warmest	Warmest since: 1939	2016
Jun–Sep 1940 4-Month	70.3°F (21.3°C)	71.5°F (21.9°C)	-1.2°F (-0.6°C)	19th Coolest	Coolest since: 1927	1927
Jun–Sep 1940 4-Month	70.3°F (21.3°C)	71.5°F (21.9°C)	-1.2°F (-0.6°C)	110th Warmest	Warmest since: 1939	2010
May–Sep 1940 5-Month	68.6°F (20.3°C)	69.7°F (20.9°C)	-1.1°F (-0.6°C)	18th Coolest	Coolest since: 1928	1907, 1967
	68.6°F (20.3°C)	69.7°F (20.9°C)	-1.1°F (-0.6°C)	111th Warmest	Warmest since: 1939	2010
	Ties: 1972, 1976, 1997
Apr–Sep 1940 6-Month	65.0°F (18.3°C)	66.7°F (19.3°C)	-1.7°F (-1.0°C)	7th Coolest	Coolest since: 1927	1907
Apr–Sep 1940 6-Month	65.0°F (18.3°C)	66.7°F (19.3°C)	-1.7°F (-1.0°C)	122nd Warmest	Warmest since: 1939	2010
Mar–Sep 1940 7-Month	61.1°F (16.2°C)	63.2°F (17.3°C)	-2.1°F (-1.1°C)	2nd Coolest	Coolest since: 1924	1924
	61.1°F (16.2°C)	63.2°F (17.3°C)	-2.1°F (-1.1°C)	127th Warmest	Warmest since: 1939	2010
	Ties: 1907
Feb–Sep 1940 8-Month	57.7°F (14.3°C)	59.6°F (15.3°C)	-1.9°F (-1.0°C)	6th Coolest	Coolest since: 1924	1907
Feb–Sep 1940 8-Month	57.7°F (14.3°C)	59.6°F (15.3°C)	-1.9°F (-1.0°C)	123rd Warmest	Warmest since: 1939	2012
Jan–Sep 1940 9-Month	53.6°F (12.0°C)	56.5°F (13.6°C)	-2.9°F (-1.6°C)	1st Coolest	Coolest since: 1940	1940
Jan–Sep 1940 9-Month	53.6°F (12.0°C)	56.5°F (13.6°C)	-2.9°F (-1.6°C)	128th Warmest	Warmest since: 1939	2012
Dec 1939–Sep 1940 10-Month	52.0°F (11.1°C)	54.5°F (12.5°C)	-2.5°F (-1.4°C)	2nd Coolest	Coolest since: 1920	1904
	52.0°F (11.1°C)	54.5°F (12.5°C)	-2.5°F (-1.4°C)	126th Warmest	Warmest since: 1939	2012
	Ties: 1920
Nov 1939–Sep 1940 11-Month	51.1°F (10.6°C)	53.6°F (12.0°C)	-2.5°F (-1.4°C)	2nd Coolest	Coolest since: 1904	1904
Nov 1939–Sep 1940 11-Month	51.1°F (10.6°C)	53.6°F (12.0°C)	-2.5°F (-1.4°C)	126th Warmest	Warmest since: 1939	2012
Oct 1939–Sep 1940 12-Month	51.5°F (10.8°C)	53.8°F (12.1°C)	-2.3°F (-1.3°C)	3rd Coolest	Coolest since: 1918	1904
	51.5°F (10.8°C)	53.8°F (12.1°C)	-2.3°F (-1.3°C)	125th Warmest	Warmest since: 1939	2012
	Ties: 1905
Apr 1939–Sep 1940 18-Month	56.8°F (13.8°C)	58.0°F (14.4°C)	-1.2°F (-0.6°C)	7th Coolest	Coolest since: 1918	1904, 1918
	56.8°F (13.8°C)	58.0°F (14.4°C)	-1.2°F (-0.6°C)	121st Warmest	Warmest since: 1939	2012
	Ties: 1902
Oct 1938–Sep 1940 24-Month	53.2°F (11.8°C)	53.7°F (12.1°C)	-0.5°F (-0.3°C)	28th Coolest	Coolest since: 1936	1905
	53.2°F (11.8°C)	53.7°F (12.1°C)	-0.5°F (-0.3°C)	99th Warmest	Warmest since: 1939	2017
	Ties: 1897, 1915, 1969, 1970
Oct 1937–Sep 1940 36-Month	53.5°F (11.9°C)	53.7°F (12.1°C)	-0.2°F (-0.2°C)	37th Coolest	Coolest since: 1937	1905, 1918
	53.5°F (11.9°C)	53.7°F (12.1°C)	-0.2°F (-0.2°C)	89th Warmest	Warmest since: 1939	2018
	Ties: 1899, 1911, 1914, 1924, 1929, 1937, 1972, 1981, 1983, 1984
Oct 1936–Sep 1940 48-Month	53.7°F (12.1°C)	53.7°F (12.1°C)	0.0°F (0.0°C)	48th Coolest	Coolest since: 1938	1905
	53.7°F (12.1°C)	53.7°F (12.1°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1939	2019
	Ties: 1900, 1925, 1938, 1958, 1959, 1973, 1983
Oct 1935–Sep 1940 60-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	43rd Coolest	Coolest since: 1938	1905, 1908
	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	81st Warmest	Warmest since: 1939	2020
	Ties: 1900, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings