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 September 2021. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, April 1978

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
April 1978
1-Month
51.9°F
(11.1°C)
52.0°F
(11.1°C)
-0.1°F
(0.0°C)
58th Coolest Coolest since: 1975 1907
70th Warmest Warmest since: 1977 2017
Ties: 1909, 1917
Mar–Apr 1978
2-Month
45.7°F
(7.6°C)
47.4°F
(8.6°C)
-1.7°F
(-1.0°C)
29th Coolest Coolest since: 1975 1940
99th Warmest Warmest since: 1977 1921
Ties: 1896, 1930
Feb–Apr 1978
3-Month
38.5°F
(3.6°C)
43.0°F
(6.1°C)
-4.5°F
(-2.5°C)
4th Coolest Coolest since: 1934 1934
124th Warmest Warmest since: 1977 2012
Jan–Apr 1978
4-Month
36.3°F
(2.4°C)
40.6°F
(4.8°C)
-4.3°F
(-2.4°C)
3rd Coolest Coolest since: 1940 1940
125th Warmest Warmest since: 1977 2012
Dec 1977–Apr 1978
5-Month
36.2°F
(2.3°C)
39.8°F
(4.3°C)
-3.6°F
(-2.0°C)
5th Coolest Coolest since: 1940 1904
122nd Warmest Warmest since: 1977 2012
Nov 1977–Apr 1978
6-Month
38.2°F
(3.4°C)
40.7°F
(4.8°C)
-2.5°F
(-1.4°C)
10th Coolest Coolest since: 1970 1904
117th Warmest Warmest since: 1977 2012
Ties: 1912
Oct 1977–Apr 1978
7-Month
40.6°F
(4.8°C)
43.0°F
(6.1°C)
-2.4°F
(-1.3°C)
9th Coolest Coolest since: 1970 1904
118th Warmest Warmest since: 1977 2012
Sep 1977–Apr 1978
8-Month
44.2°F
(6.8°C)
46.0°F
(7.8°C)
-1.8°F
(-1.0°C)
11th Coolest Coolest since: 1977 1918
116th Warmest Warmest since: 1976 2012
Ties: 1912, 1982
Aug 1977–Apr 1978
9-Month
47.8°F
(8.8°C)
49.1°F
(9.5°C)
-1.3°F
(-0.7°C)
18th Coolest Coolest since: 1977 1918
109th Warmest Warmest since: 1976 2017
Jul 1977–Apr 1978
10-Month
50.7°F
(10.4°C)
51.8°F
(11.0°C)
-1.1°F
(-0.6°C)
20th Coolest Coolest since: 1977 1918
107th Warmest Warmest since: 1976 2012, 2017
Ties: 1910
Jun 1977–Apr 1978
11-Month
52.3°F
(11.3°C)
53.5°F
(11.9°C)
-1.2°F
(-0.6°C)
15th Coolest Coolest since: 1977 1904
112th Warmest Warmest since: 1976 2012
Ties: 1908, 1912, 1917, 1941
May 1977–Apr 1978
12-Month
53.3°F
(11.8°C)
54.2°F
(12.3°C)
-0.9°F
(-0.5°C)
20th Coolest Coolest since: 1977 1918
107th Warmest Warmest since: 1976 2012
Ties: 1910, 1917, 1927, 1964
Nov 1976–Apr 1978
18-Month
48.5°F
(9.2°C)
49.7°F
(9.8°C)
-1.2°F
(-0.6°C)
11th Coolest Coolest since: 1970 1905
115th Warmest Warmest since: 1977 2017
Ties: 1917, 1927, 1936, 1970, 1979
May 1976–Apr 1978
24-Month
53.0°F
(11.7°C)
54.2°F
(12.3°C)
-1.2°F
(-0.6°C)
8th Coolest Coolest since: 1964 1905
118th Warmest Warmest since: 1977 2017
Ties: 1912, 1964
May 1975–Apr 1978
36-Month
54.0°F
(12.2°C)
54.2°F
(12.3°C)
-0.2°F
(-0.1°C)
42nd Coolest Coolest since: 1971 1906
83rd Warmest Warmest since: 1977 2021
Ties: 1898, 1901, 1938, 1961, 1984
May 1974–Apr 1978
48-Month
54.0°F
(12.2°C)
54.2°F
(12.3°C)
-0.2°F
(-0.1°C)
43rd Coolest Coolest since: 1972 1905
81st Warmest Warmest since: 1977 2019, 2020
Ties: 1901, 1903, 1916, 1925, 1931, 1961, 1962, 1972
May 1973–Apr 1978
60-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1973 1908
57th Warmest Warmest since: 1977 2020
Ties: 1923, 1945, 1985

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 19, 2021 from https://www.ncdc.noaa.gov/cag/