Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of October 2021. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, September 1984

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 1984
1-Month
65.3°F
(18.5°C)
67.4°F
(19.7°C)
-2.1°F
(-1.2°C)
14th Coolest Coolest since: 1967 1917
114th Warmest Warmest since: 1983 2018
Ties: 1909
Aug–Sep 1984
2-Month
70.0°F
(21.1°C)
70.6°F
(21.4°C)
-0.6°F
(-0.3°C)
37th Coolest Coolest since: 1982 1927, 1963
91st Warmest Warmest since: 1983 2018
Ties: 1897, 1923, 1948, 1969, 2013
Jul–Sep 1984
3-Month
71.3°F
(21.8°C)
72.2°F
(22.3°C)
-0.9°F
(-0.5°C)
22nd Coolest Coolest since: 1982 1909
106th Warmest Warmest since: 1983 2016
Ties: 1922, 1929
Jun–Sep 1984
4-Month
71.6°F
(22.0°C)
71.8°F
(22.1°C)
-0.2°F
(-0.1°C)
45th Coolest Coolest since: 1982 1927
83rd Warmest Warmest since: 1983 2010
Ties: 1922, 1923, 1937, 1951, 1981
May–Sep 1984
5-Month
69.6°F
(20.9°C)
69.9°F
(21.1°C)
-0.3°F
(-0.2°C)
41st Coolest Coolest since: 1982 1924, 1927
87th Warmest Warmest since: 1983 2010
Ties: 1938, 1948, 1966, 1971, 1978
Apr–Sep 1984
6-Month
66.5°F
(19.2°C)
66.9°F
(19.4°C)
-0.4°F
(-0.2°C)
33rd Coolest Coolest since: 1982 1907
95th Warmest Warmest since: 1983 2010
Ties: 1905, 1932, 1958, 1964
Mar–Sep 1984
7-Month
62.4°F
(16.9°C)
63.4°F
(17.4°C)
-1.0°F
(-0.5°C)
17th Coolest Coolest since: 1972 1924
111th Warmest Warmest since: 1983 2010
Ties: 1914, 1915
Feb–Sep 1984
8-Month
59.7°F
(15.4°C)
59.9°F
(15.5°C)
-0.2°F
(-0.1°C)
49th Coolest Coolest since: 1982 1907
79th Warmest Warmest since: 1983 2012
Ties: 1903, 1969
Jan–Sep 1984
9-Month
56.2°F
(13.4°C)
56.9°F
(13.8°C)
-0.7°F
(-0.4°C)
34th Coolest Coolest since: 1982 1940
94th Warmest Warmest since: 1983 2012
Ties: 1923, 1936, 1948, 1965
Dec 1983–Sep 1984
10-Month
54.1°F
(12.3°C)
54.9°F
(12.7°C)
-0.8°F
(-0.4°C)
34th Coolest Coolest since: 1982 1904
93rd Warmest Warmest since: 1983 2012
Ties: 1928, 1966
Nov 1983–Sep 1984
11-Month
53.4°F
(11.9°C)
53.9°F
(12.2°C)
-0.5°F
(-0.3°C)
32nd Coolest Coolest since: 1982 1904
95th Warmest Warmest since: 1983 2012
Ties: 1897, 1914, 1923, 1966, 1971, 1979, 1981
Oct 1983–Sep 1984
12-Month
53.8°F
(12.1°C)
54.2°F
(12.3°C)
-0.4°F
(-0.2°C)
40th Coolest Coolest since: 1982 1904
87th Warmest Warmest since: 1983 2012
Ties: 1896, 1915, 1923, 1965
Apr 1983–Sep 1984
18-Month
58.3°F
(14.6°C)
58.4°F
(14.7°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1982 1904, 1918
80th Warmest Warmest since: 1983 2012
Ties: 1958
Oct 1982–Sep 1984
24-Month
54.7°F
(12.6°C)
54.2°F
(12.3°C)
0.5°F
(0.3°C)
76th Coolest Coolest since: 1983 1905
50th Warmest Warmest since: 1976 2017
Ties: 1993
Oct 1981–Sep 1984
36-Month
54.0°F
(12.2°C)
54.1°F
(12.3°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1983 1905, 1918
78th Warmest Warmest since: 1981 2018, 2021
Ties: 1901, 1914, 1958
Oct 1980–Sep 1984
48-Month
53.9°F
(12.2°C)
54.2°F
(12.3°C)
-0.3°F
(-0.1°C)
38th Coolest Coolest since: 1982 1905
86th Warmest Warmest since: 1983 2019
Ties: 1903, 1914, 1915, 1921, 1925, 1938, 1961, 1972
Oct 1979–Sep 1984
60-Month
54.1°F
(12.3°C)
54.1°F
(12.3°C)
0.0°F
(0.0°C)
48th Coolest Coolest since: 1983 1908
75th Warmest Warmest since: 1983 2020
Ties: 1901, 1931, 1942, 1943, 1973, 1980, 1983

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 4, 2021 from https://www.ncdc.noaa.gov/cag/