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


Philadelphia, Pennsylvania

Average Temperature Rankings, December 1998

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1998
1-Month
41.9°F
(5.5°C)
37.1°F
(2.8°C)
4.8°F
(2.7°C)
76th Coolest Coolest since: 1997 1989
6th Warmest Warmest since: 1984 2015
Ties: 1984
Nov–Dec 1998
2-Month
45.0°F
(7.2°C)
42.2°F
(5.7°C)
2.8°F
(1.5°C)
72nd Coolest Coolest since: 1997 1976, 1989
9th Warmest Warmest since: 1994 2015
Oct–Dec 1998
3-Month
49.4°F
(9.7°C)
47.2°F
(8.4°C)
2.2°F
(1.3°C)
72nd Coolest Coolest since: 1997 1976
9th Warmest Warmest since: 1990 2015
Ties: 2007
Sep–Dec 1998
4-Month
54.9°F
(12.7°C)
52.5°F
(11.4°C)
2.4°F
(1.3°C)
74th Coolest Coolest since: 1997 1976
7th Warmest Warmest since: 1971 2015
Ties: 1971
Aug–Dec 1998
5-Month
59.5°F
(15.3°C)
57.2°F
(14.0°C)
2.3°F
(1.3°C)
75th Coolest Coolest since: 1997 1976
6th Warmest Warmest to Date 2015
Jul–Dec 1998
6-Month
62.5°F
(16.9°C)
60.6°F
(15.9°C)
1.9°F
(1.0°C)
73rd Coolest Coolest since: 1997 1962
8th Warmest Warmest to Date 2015
Ties: 2005
Jun–Dec 1998
7-Month
63.8°F
(17.7°C)
62.4°F
(16.9°C)
1.4°F
(0.8°C)
67th Coolest Coolest since: 1997 1962
13th Warmest Warmest to Date 2015
May–Dec 1998
8-Month
64.1°F
(17.8°C)
62.5°F
(16.9°C)
1.6°F
(0.9°C)
69th Coolest Coolest since: 1997 1962, 1967
11th Warmest Warmest to Date 2015
Ties: 2006
Apr–Dec 1998
9-Month
63.1°F
(17.3°C)
61.5°F
(16.4°C)
1.6°F
(0.9°C)
71st Coolest Coolest since: 1997 1967
9th Warmest Warmest to Date 2015
Ties: 2020
Mar–Dec 1998
10-Month
61.3°F
(16.3°C)
59.7°F
(15.4°C)
1.6°F
(0.9°C)
70th Coolest Coolest since: 1997 1950, 1967
9th Warmest Warmest to Date 2015
Feb–Dec 1998
11-Month
59.5°F
(15.3°C)
57.4°F
(14.1°C)
2.1°F
(1.2°C)
73rd Coolest Coolest since: 1997 1967
6th Warmest Warmest to Date 2012
Ties: 2015
Jan–Dec 1998
12-Month
58.0°F
(14.4°C)
55.4°F
(13.0°C)
2.6°F
(1.4°C)
76th Coolest Coolest since: 1997 1958
3rd Warmest Warmest to Date 2012
Jul 1997–Dec 1998
18-Month
58.5°F
(14.7°C)
57.1°F
(13.9°C)
1.4°F
(0.8°C)
68th Coolest Coolest since: 1997 1963
10th Warmest Warmest since: 1991 2016
Ties: 1991, 2010
Jan 1997–Dec 1998
24-Month
56.3°F
(13.5°C)
55.3°F
(12.9°C)
1.0°F
(0.6°C)
60th Coolest Coolest since: 1997 1963
16th Warmest Warmest since: 1991 2012
Jan 1996–Dec 1998
36-Month
55.4°F
(13.0°C)
55.3°F
(12.9°C)
0.1°F
(0.1°C)
49th Coolest Coolest since: 1997 1963
24th Warmest Warmest since: 1992 2012
Jan 1995–Dec 1998
48-Month
55.3°F
(12.9°C)
55.3°F
(12.9°C)
0.0°F
(0.0°C)
45th Coolest Coolest since: 1997 1963
25th Warmest Warmest since: 1993 2013
Ties: 1992
Jan 1994–Dec 1998
60-Month
55.2°F
(12.9°C)
55.2°F
(12.9°C)
0.0°F
(0.0°C)
41st Coolest Coolest since: 1997 1966
26th Warmest Warmest since: 1994 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published September 2021, retrieved on September 16, 2021 from https://www.ncdc.noaa.gov/cag/