Climate at a Glance

City 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.


Washington (Dulles), District of Columbia

Average Temperature Rankings, May 1978

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1960-2019)
Warmest/Coolest
Since
Record
May 1978
1-Month
62.8°F
(17.1°C)
63.0°F
(17.2°C)
-0.2°F
(-0.1°C)
28th Coolest Coolest since: 1976 1967
31st Warmest Warmest since: 1977 2004
Apr–May 1978
2-Month
58.2°F
(14.6°C)
58.6°F
(14.8°C)
-0.4°F
(-0.2°C)
32nd Coolest Coolest since: 1976 1966
27th Warmest Warmest since: 1977 2019
Ties: 1976, 1993, 1999, 2014
Mar–May 1978
3-Month
52.1°F
(11.2°C)
53.7°F
(12.1°C)
-1.6°F
(-0.9°C)
16th Coolest Coolest since: 1975 1971
43rd Warmest Warmest since: 1977 2012
Ties: 1964, 1983
Feb–May 1978
4-Month
45.6°F
(7.6°C)
49.2°F
(9.6°C)
-3.6°F
(-2.0°C)
1st Coolest Coolest since: 1967 1967, 1978
58th Warmest Warmest since: 1977 2012
Ties: 1967
Jan–May 1978
5-Month
41.8°F
(5.4°C)
45.9°F
(7.7°C)
-4.1°F
(-2.3°C)
1st Coolest Coolest to Date 1978
58th Warmest Warmest since: 1977 2012
Dec 1977–May 1978
6-Month
40.2°F
(4.6°C)
44.3°F
(6.8°C)
-4.1°F
(-2.2°C)
1st Coolest Coolest since: 1970 1970, 1978
58th Warmest Warmest since: 1977 2012
Ties: 1970
Nov 1977–May 1978
7-Month
41.2°F
(5.1°C)
44.5°F
(6.9°C)
-3.3°F
(-1.8°C)
2nd Coolest Coolest since: 1970 1970
54th Warmest Warmest since: 1977 2012
Oct 1977–May 1978
8-Month
42.7°F
(5.9°C)
45.9°F
(7.7°C)
-3.2°F
(-1.8°C)
2nd Coolest Coolest since: 1970 1970
54th Warmest Warmest since: 1977 2012
Sep 1977–May 1978
9-Month
45.7°F
(7.6°C)
48.3°F
(9.1°C)
-2.6°F
(-1.5°C)
4th Coolest Coolest since: 1977 1970
52nd Warmest Warmest since: 1976 2017
Aug 1977–May 1978
10-Month
48.7°F
(9.3°C)
51.0°F
(10.6°C)
-2.3°F
(-1.3°C)
6th Coolest Coolest since: 1977 1970
50th Warmest Warmest since: 1976 2017
Jul 1977–May 1978
11-Month
51.2°F
(10.7°C)
53.3°F
(11.8°C)
-2.1°F
(-1.1°C)
6th Coolest Coolest since: 1977 1970
50th Warmest Warmest since: 1976 2017
Jun 1977–May 1978
12-Month
52.7°F
(11.5°C)
54.9°F
(12.7°C)
-2.2°F
(-1.2°C)
5th Coolest Coolest since: 1977 1970
51st Warmest Warmest since: 1976 2017
Dec 1976–May 1978
18-Month
49.2°F
(9.6°C)
51.3°F
(10.7°C)
-2.1°F
(-1.1°C)
7th Coolest Coolest since: 1971 1970
49th Warmest Warmest since: 1977 2017
Ties: 1967
Jun 1976–May 1978
24-Month
52.4°F
(11.3°C)
54.7°F
(12.6°C)
-2.3°F
(-1.3°C)
1st Coolest Coolest to Date 1978
53rd Warmest Warmest since: 1977 2017
Jun 1975–May 1978
36-Month
53.3°F
(11.8°C)
54.7°F
(12.6°C)
-1.4°F
(-0.8°C)
11th Coolest Coolest since: 1972 1970
41st Warmest Warmest since: 1977 2018
Ties: 1983, 1984
Jun 1974–May 1978
48-Month
53.4°F
(11.9°C)
54.7°F
(12.6°C)
-1.3°F
(-0.7°C)
13th Coolest Coolest since: 1973 1970, 1971
37th Warmest Warmest since: 1977 2019
Ties: 1983
Jun 1973–May 1978
60-Month
53.8°F
(12.1°C)
54.6°F
(12.6°C)
-0.8°F
(-0.5°C)
15th Coolest Coolest since: 1974 1971
33rd Warmest Warmest since: 1977 2012

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published January 2020, retrieved on January 28, 2020 from https://www.ncdc.noaa.gov/cag/