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 2021. For more information, please see Climatological Rankings.


Washington (Dulles), District of Columbia

Average Temperature Rankings, December 1991

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1991
1-Month
38.1°F
(3.4°C)
36.1°F
(2.3°C)
2.0°F
(1.1°C)
37th Coolest Coolest since: 1989 1989
25th Warmest Warmest since: 1990 2015
Nov–Dec 1991
2-Month
41.7°F
(5.4°C)
41.0°F
(5.0°C)
0.7°F
(0.4°C)
36th Coolest Coolest since: 1989 1989
23rd Warmest Warmest since: 1990 2015
Ties: 1965
Oct–Dec 1991
3-Month
46.5°F
(8.1°C)
45.8°F
(7.7°C)
0.7°F
(0.4°C)
33rd Coolest Coolest since: 1989 1976
26th Warmest Warmest since: 1990 2015
Sep–Dec 1991
4-Month
51.7°F
(10.9°C)
51.2°F
(10.7°C)
0.5°F
(0.2°C)
33rd Coolest Coolest since: 1989 1976
26th Warmest Warmest since: 1990 2015
Ties: 1979
Aug–Dec 1991
5-Month
56.7°F
(13.7°C)
56.0°F
(13.3°C)
0.7°F
(0.4°C)
37th Coolest Coolest since: 1989 1976
22nd Warmest Warmest since: 1990 2021
Jul–Dec 1991
6-Month
60.2°F
(15.7°C)
59.4°F
(15.2°C)
0.8°F
(0.5°C)
42nd Coolest Coolest since: 1989 1976
17th Warmest Warmest since: 1990 2021
Ties: 1985, 2009, 2010
Jun–Dec 1991
7-Month
61.8°F
(16.6°C)
61.1°F
(16.2°C)
0.7°F
(0.4°C)
40th Coolest Coolest since: 1989 1976
19th Warmest Warmest since: 1990 2021
Ties: 1971, 2013
May–Dec 1991
8-Month
62.7°F
(17.1°C)
61.3°F
(16.3°C)
1.4°F
(0.8°C)
48th Coolest Coolest since: 1990 1976
11th Warmest Warmest to Date 2015
Apr–Dec 1991
9-Month
61.9°F
(16.6°C)
60.5°F
(15.8°C)
1.4°F
(0.8°C)
46th Coolest Coolest since: 1990 1976
13th Warmest Warmest to Date 2015
Ties: 2006
Mar–Dec 1991
10-Month
60.3°F
(15.7°C)
58.8°F
(14.9°C)
1.5°F
(0.8°C)
49th Coolest Coolest since: 1990 1967
10th Warmest Warmest to Date 2021
Ties: 2006
Feb–Dec 1991
11-Month
58.4°F
(14.7°C)
56.7°F
(13.7°C)
1.7°F
(1.0°C)
51st Coolest Coolest since: 1990 1967
8th Warmest Warmest to Date 2012
Ties: 2010, 2018
Jan–Dec 1991
12-Month
56.3°F
(13.5°C)
54.7°F
(12.6°C)
1.6°F
(0.9°C)
48th Coolest Coolest since: 1989 1966
11th Warmest Warmest since: 1990 2012
Ties: 2010
Jul 1990–Dec 1991
18-Month
57.7°F
(14.3°C)
56.2°F
(13.4°C)
1.5°F
(0.9°C)
47th Coolest Coolest since: 1990 1967
10th Warmest Warmest to Date 2021
Jan 1990–Dec 1991
24-Month
56.5°F
(13.6°C)
54.7°F
(12.6°C)
1.8°F
(1.0°C)
47th Coolest Coolest since: 1990 1967
10th Warmest Warmest to Date 2021
Jan 1989–Dec 1991
36-Month
55.5°F
(13.1°C)
54.7°F
(12.6°C)
0.8°F
(0.5°C)
41st Coolest Coolest since: 1990 1968
14th Warmest Warmest to Date 2021
Jan 1988–Dec 1991
48-Month
55.0°F
(12.8°C)
54.6°F
(12.6°C)
0.4°F
(0.2°C)
32nd Coolest Coolest since: 1990 1969
21st Warmest Warmest to Date 2021
Jan 1987–Dec 1991
60-Month
54.9°F
(12.7°C)
54.6°F
(12.6°C)
0.3°F
(0.1°C)
31st Coolest Coolest since: 1990 1969, 1970
20th Warmest Warmest to Date 2021
Ties: 2004

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published January 2022, retrieved on January 27, 2022 from https://www.ncdc.noaa.gov/cag/