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.

Delaware

Average Temperature Rankings, July 1989

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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
July 1989 1-Month	75.2°F (24.0°C)	75.5°F (24.2°C)	-0.3°F (-0.2°C)	50th Coolest	Coolest since: 1984	1895
	75.2°F (24.0°C)	75.5°F (24.2°C)	-0.3°F (-0.2°C)	79th Warmest	Warmest since: 1988	2012
	Ties: 1936, 1969, 1972
Jun–Jul 1989 2-Month	74.6°F (23.7°C)	73.1°F (22.8°C)	1.5°F (0.9°C)	94th Coolest	Coolest since: 1985	1907
	74.6°F (23.7°C)	73.1°F (22.8°C)	1.5°F (0.9°C)	35th Warmest	Warmest since: 1988	2010
	Ties: 1930
May–Jul 1989 3-Month	70.3°F (21.3°C)	69.5°F (20.8°C)	0.8°F (0.5°C)	87th Coolest	Coolest since: 1985	1907
	70.3°F (21.3°C)	69.5°F (20.8°C)	0.8°F (0.5°C)	42nd Warmest	Warmest since: 1988	2010
	Ties: 1939
Apr–Jul 1989 4-Month	65.6°F (18.7°C)	65.1°F (18.4°C)	0.5°F (0.3°C)	72nd Coolest	Coolest since: 1988	1907
	65.6°F (18.7°C)	65.1°F (18.4°C)	0.5°F (0.3°C)	57th Warmest	Warmest since: 1988	2010
	Ties: 1899, 1930, 1933, 1973, 1988
Mar–Jul 1989 5-Month	61.0°F (16.1°C)	60.6°F (15.9°C)	0.4°F (0.2°C)	69th Coolest	Coolest since: 1984	1907
	61.0°F (16.1°C)	60.6°F (15.9°C)	0.4°F (0.2°C)	60th Warmest	Warmest since: 1988	2010, 2012
	Ties: 1898, 1919, 1934, 1939, 1980
Feb–Jul 1989 6-Month	56.8°F (13.8°C)	56.3°F (13.5°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1984	1907
	56.8°F (13.8°C)	56.3°F (13.5°C)	0.5°F (0.3°C)	53rd Warmest	Warmest since: 1988	2012
	Ties: 1910, 1944
Jan–Jul 1989 7-Month	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	92nd Coolest	Coolest since: 1988	1940
	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	37th Warmest	Warmest since: 1986	2012
	Ties: 1930, 1955, 1959, 1973
Dec 1988–Jul 1989 8-Month	51.8°F (11.0°C)	50.9°F (10.5°C)	0.9°F (0.5°C)	83rd Coolest	Coolest since: 1988	1904
	51.8°F (11.0°C)	50.9°F (10.5°C)	0.9°F (0.5°C)	45th Warmest	Warmest since: 1985	2012
	Ties: 1993
Nov 1988–Jul 1989 9-Month	51.3°F (10.7°C)	50.3°F (10.2°C)	1.0°F (0.5°C)	88th Coolest	Coolest since: 1988	1904
	51.3°F (10.7°C)	50.3°F (10.2°C)	1.0°F (0.5°C)	40th Warmest	Warmest since: 1986	2012
	Ties: 1925, 1930, 1933, 2005
Oct 1988–Jul 1989 10-Month	51.3°F (10.7°C)	50.9°F (10.5°C)	0.4°F (0.2°C)	69th Coolest	Coolest since: 1988	1904
	51.3°F (10.7°C)	50.9°F (10.5°C)	0.4°F (0.2°C)	59th Warmest	Warmest since: 1987	2012
	Ties: 1903, 1947, 1951, 1980, 1994
Sep 1988–Jul 1989 11-Month	52.6°F (11.4°C)	52.4°F (11.3°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1984	1918
	52.6°F (11.4°C)	52.4°F (11.3°C)	0.2°F (0.1°C)	70th Warmest	Warmest since: 1988	2012
	Ties: 1909, 1929, 1945, 1962
Aug 1988–Jul 1989 12-Month	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1988	1904
	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	50th Warmest	Warmest since: 1987	2012
	Ties: 1901, 1973, 1987, 1994
Feb 1988–Jul 1989 18-Month	55.5°F (13.1°C)	54.9°F (12.7°C)	0.6°F (0.4°C)	81st Coolest	Coolest since: 1988	1905
	55.5°F (13.1°C)	54.9°F (12.7°C)	0.6°F (0.4°C)	47th Warmest	Warmest since: 1988	2012
	Ties: 1942, 1943, 1988
Aug 1987–Jul 1989 24-Month	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	82nd Coolest	Coolest since: 1988	1905
	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	45th Warmest	Warmest since: 1988	2017
	Ties: 1914, 1939, 1952, 1973, 1988, 2015
Aug 1986–Jul 1989 36-Month	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	74th Coolest	Coolest since: 1984	1906
	54.7°F (12.6°C)	54.2°F (12.3°C)	0.5°F (0.3°C)	52nd Warmest	Warmest since: 1988	2018, 2019, 2021
	Ties: 1944, 1957
Aug 1985–Jul 1989 48-Month	54.9°F (12.7°C)	54.2°F (12.3°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 1985	1907
	54.9°F (12.7°C)	54.2°F (12.3°C)	0.7°F (0.4°C)	38th Warmest	Warmest since: 1988	2019
	Ties: 1932, 1953, 1990, 1995
Aug 1984–Jul 1989 60-Month	55.0°F (12.8°C)	54.2°F (12.3°C)	0.8°F (0.5°C)	91st Coolest	Coolest since: 1988	1908
	55.0°F (12.8°C)	54.2°F (12.3°C)	0.8°F (0.5°C)	33rd Warmest	Warmest since: 1987	2020
	Ties: 1954, 1955, 1987, 1990

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings