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, September 1918

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1918 1-Month	63.2°F (17.3°C)	67.4°F (19.7°C)	-4.2°F (-2.4°C)	2nd Coolest	Coolest since: 1917	1917
September 1918 1-Month	63.2°F (17.3°C)	67.4°F (19.7°C)	-4.2°F (-2.4°C)	127th Warmest	Warmest since: 1916	2018
Aug–Sep 1918 2-Month	69.5°F (20.8°C)	70.6°F (21.4°C)	-1.1°F (-0.6°C)	23rd Coolest	Coolest since: 1917	1927, 1963
	69.5°F (20.8°C)	70.6°F (21.4°C)	-1.1°F (-0.6°C)	106th Warmest	Warmest since: 1916	2018
	Ties: 1958
Jul–Sep 1918 3-Month	70.7°F (21.5°C)	72.2°F (22.3°C)	-1.5°F (-0.8°C)	11th Coolest	Coolest since: 1917	1909
	70.7°F (21.5°C)	72.2°F (22.3°C)	-1.5°F (-0.8°C)	118th Warmest	Warmest since: 1916	2016
	Ties: 2000
Jun–Sep 1918 4-Month	70.0°F (21.1°C)	71.8°F (22.1°C)	-1.8°F (-1.0°C)	5th Coolest	Coolest since: 1909	1927
	70.0°F (21.1°C)	71.8°F (22.1°C)	-1.8°F (-1.0°C)	124th Warmest	Warmest since: 1917	2010
	Ties: 1909, 1946
May–Sep 1918 5-Month	69.4°F (20.8°C)	69.9°F (21.1°C)	-0.5°F (-0.3°C)	31st Coolest	Coolest since: 1917	1924, 1927
	69.4°F (20.8°C)	69.9°F (21.1°C)	-0.5°F (-0.3°C)	98th Warmest	Warmest since: 1914	2010
	Ties: 1912, 1919, 1923, 1976, 1979
Apr–Sep 1918 6-Month	66.4°F (19.1°C)	66.9°F (19.4°C)	-0.5°F (-0.3°C)	27th Coolest	Coolest since: 1917	1907
	66.4°F (19.1°C)	66.9°F (19.4°C)	-0.5°F (-0.3°C)	102nd Warmest	Warmest since: 1915	2010
	Ties: 1919, 1962, 1971, 1975, 1979
Mar–Sep 1918 7-Month	63.3°F (17.4°C)	63.5°F (17.5°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1917	1924
	63.3°F (17.4°C)	63.5°F (17.5°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1913	2010
	Ties: 1941, 1951, 1964
Feb–Sep 1918 8-Month	59.5°F (15.3°C)	59.8°F (15.4°C)	-0.3°F (-0.1°C)	42nd Coolest	Coolest since: 1917	1907
	59.5°F (15.3°C)	59.8°F (15.4°C)	-0.3°F (-0.1°C)	87th Warmest	Warmest since: 1913	2012
	Ties: 1964, 1996
Jan–Sep 1918 9-Month	55.3°F (12.9°C)	56.8°F (13.8°C)	-1.5°F (-0.9°C)	11th Coolest	Coolest since: 1917	1940
	55.3°F (12.9°C)	56.8°F (13.8°C)	-1.5°F (-0.9°C)	118th Warmest	Warmest since: 1916	2012
	Ties: 1958
Dec 1917–Sep 1918 10-Month	52.6°F (11.4°C)	54.8°F (12.7°C)	-2.2°F (-1.3°C)	5th Coolest	Coolest since: 1905	1904
Dec 1917–Sep 1918 10-Month	52.6°F (11.4°C)	54.8°F (12.7°C)	-2.2°F (-1.3°C)	123rd Warmest	Warmest since: 1917	2012
Nov 1917–Sep 1918 11-Month	51.5°F (10.8°C)	54.0°F (12.2°C)	-2.5°F (-1.4°C)	3rd Coolest	Coolest since: 1905	1904
	51.5°F (10.8°C)	54.0°F (12.2°C)	-2.5°F (-1.4°C)	125th Warmest	Warmest since: 1917	2012
	Ties: 1905
Oct 1917–Sep 1918 12-Month	51.5°F (10.8°C)	54.2°F (12.3°C)	-2.7°F (-1.5°C)	2nd Coolest	Coolest since: 1904	1904
	51.5°F (10.8°C)	54.2°F (12.3°C)	-2.7°F (-1.5°C)	126th Warmest	Warmest since: 1917	2012
	Ties: 1940
Apr 1917–Sep 1918 18-Month	56.0°F (13.3°C)	58.4°F (14.7°C)	-2.4°F (-1.4°C)	1st Coolest	Coolest since: 1904	1904, 1918
	56.0°F (13.3°C)	58.4°F (14.7°C)	-2.4°F (-1.4°C)	127th Warmest	Warmest since: 1917	2012
	Ties: 1904
Oct 1916–Sep 1918 24-Month	52.1°F (11.2°C)	54.2°F (12.3°C)	-2.1°F (-1.1°C)	2nd Coolest	Coolest since: 1905	1905
Oct 1916–Sep 1918 24-Month	52.1°F (11.2°C)	54.2°F (12.3°C)	-2.1°F (-1.1°C)	125th Warmest	Warmest since: 1917	2017
Oct 1915–Sep 1918 36-Month	52.4°F (11.3°C)	54.2°F (12.3°C)	-1.8°F (-1.0°C)	1st Coolest	Coolest since: 1905	1905, 1918
	52.4°F (11.3°C)	54.2°F (12.3°C)	-1.8°F (-1.0°C)	125th Warmest	Warmest since: 1917	2018
	Ties: 1905
Oct 1914–Sep 1918 48-Month	52.7°F (11.5°C)	54.1°F (12.3°C)	-1.4°F (-0.8°C)	3rd Coolest	Coolest since: 1907	1905
Oct 1914–Sep 1918 48-Month	52.7°F (11.5°C)	54.1°F (12.3°C)	-1.4°F (-0.8°C)	122nd Warmest	Warmest since: 1917	2019
Oct 1913–Sep 1918 60-Month	52.9°F (11.6°C)	54.1°F (12.3°C)	-1.2°F (-0.7°C)	5th Coolest	Coolest since: 1908	1908
	52.9°F (11.6°C)	54.1°F (12.3°C)	-1.2°F (-0.7°C)	119th Warmest	Warmest since: 1917	2020
	Ties: 1920

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings