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 December 2019. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, May 1978

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1978
1-Month
60.2°F
(15.7°C)
62.1°F
(16.7°C)
-1.9°F
(-1.0°C)
19th Coolest Coolest since: 1973 1967
107th Warmest Warmest since: 1977 2004
Ties: 1901
Apr–May 1978
2-Month
56.0°F
(13.3°C)
57.0°F
(13.9°C)
-1.0°F
(-0.6°C)
28th Coolest Coolest since: 1975 1907
98th Warmest Warmest since: 1977 2019
Ties: 1897, 1943
Mar–May 1978
3-Month
50.5°F
(10.3°C)
52.3°F
(11.3°C)
-1.8°F
(-1.0°C)
19th Coolest Coolest since: 1971 1940
107th Warmest Warmest since: 1977 2012
Ties: 1904
Feb–May 1978
4-Month
43.9°F
(6.6°C)
47.8°F
(8.8°C)
-3.9°F
(-2.2°C)
2nd Coolest Coolest since: 1934 1934
124th Warmest Warmest since: 1977 2012
Ties: 1895
Jan–May 1978
5-Month
41.1°F
(5.1°C)
45.0°F
(7.2°C)
-3.9°F
(-2.1°C)
3rd Coolest Coolest since: 1940 1940
123rd Warmest Warmest since: 1977 2012
Dec 1977–May 1978
6-Month
40.2°F
(4.6°C)
43.5°F
(6.4°C)
-3.3°F
(-1.8°C)
5th Coolest Coolest since: 1940 1904
120th Warmest Warmest since: 1977 2012
Nov 1977–May 1978
7-Month
41.3°F
(5.2°C)
43.7°F
(6.5°C)
-2.4°F
(-1.3°C)
6th Coolest Coolest since: 1940 1904
119th Warmest Warmest since: 1977 2012
Oct 1977–May 1978
8-Month
43.0°F
(6.1°C)
45.4°F
(7.4°C)
-2.4°F
(-1.3°C)
5th Coolest Coolest since: 1940 1904
120th Warmest Warmest since: 1977 2012
Sep 1977–May 1978
9-Month
46.0°F
(7.8°C)
47.8°F
(8.8°C)
-1.8°F
(-1.0°C)
8th Coolest Coolest since: 1970 1904, 1918
117th Warmest Warmest since: 1977 2012
Ties: 1968
Aug 1977–May 1978
10-Month
49.0°F
(9.4°C)
50.4°F
(10.2°C)
-1.4°F
(-0.8°C)
14th Coolest Coolest since: 1977 1904
111th Warmest Warmest since: 1976 2012
Ties: 1917, 1934
Jul 1977–May 1978
11-Month
51.5°F
(10.8°C)
52.7°F
(11.5°C)
-1.2°F
(-0.7°C)
16th Coolest Coolest since: 1977 1904
109th Warmest Warmest since: 1976 2012
Jun 1977–May 1978
12-Month
53.0°F
(11.7°C)
54.3°F
(12.4°C)
-1.3°F
(-0.7°C)
12th Coolest Coolest since: 1977 1904
113th Warmest Warmest since: 1976 2012
Ties: 1911, 1934, 1961
Dec 1976–May 1978
18-Month
49.6°F
(9.8°C)
50.6°F
(10.3°C)
-1.0°F
(-0.5°C)
15th Coolest Coolest since: 1970 1905
109th Warmest Warmest since: 1977 2017
Ties: 1912, 1964
Jun 1976–May 1978
24-Month
52.9°F
(11.6°C)
54.1°F
(12.3°C)
-1.2°F
(-0.7°C)
5th Coolest Coolest since: 1941 1905
119th Warmest Warmest since: 1977 2017
Ties: 1904, 1917
Jun 1975–May 1978
36-Month
53.9°F
(12.2°C)
54.2°F
(12.3°C)
-0.3°F
(-0.1°C)
38th Coolest Coolest since: 1971 1906
85th Warmest Warmest since: 1977 2018
Ties: 1913, 1937, 1940
Jun 1974–May 1978
48-Month
54.0°F
(12.2°C)
54.2°F
(12.3°C)
-0.2°F
(-0.1°C)
44th Coolest Coolest since: 1973 1907
78th Warmest Warmest since: 1977 2019
Ties: 1901, 1915, 1916, 1931, 1938, 1942, 1973, 1983
Jun 1973–May 1978
60-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1974 1908
53rd Warmest Warmest since: 1977 2019
Ties: 1947, 1974, 1985

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 22, 2020 from https://www.ncdc.noaa.gov/cag/