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


Allentown, Pennsylvania

Average Temperature Rankings, December 2009

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 2009
1-Month
31.7°F
(-0.2°C)
32.5°F
(0.3°C)
-0.8°F
(-0.5°C)
48th Coolest Coolest since: 2005 1989
51st Warmest Warmest since: 2008 2015
Ties: 1964, 2017
Nov–Dec 2009
2-Month
39.4°F
(4.1°C)
37.8°F
(3.2°C)
1.6°F
(0.9°C)
80th Coolest Coolest since: 2008 1989
17th Warmest Warmest since: 2006 2015
Oct–Dec 2009
3-Month
43.5°F
(6.4°C)
42.8°F
(6.0°C)
0.7°F
(0.4°C)
68th Coolest Coolest since: 2008 1976
28th Warmest Warmest since: 2007 2015
Ties: 2004
Sep–Dec 2009
4-Month
48.4°F
(9.1°C)
48.1°F
(8.9°C)
0.3°F
(0.2°C)
64th Coolest Coolest since: 2008 1976
32nd Warmest Warmest since: 2007 2015
Aug–Dec 2009
5-Month
53.4°F
(11.9°C)
52.9°F
(11.6°C)
0.5°F
(0.3°C)
71st Coolest Coolest since: 2008 1976
25th Warmest Warmest since: 2007 2015
Ties: 1975, 1991
Jul–Dec 2009
6-Month
56.2°F
(13.4°C)
56.3°F
(13.5°C)
-0.1°F
(-0.1°C)
61st Coolest Coolest since: 2008 1976
35th Warmest Warmest since: 2007 2015
Ties: 1953, 1982
Jun–Dec 2009
7-Month
57.9°F
(14.4°C)
58.2°F
(14.6°C)
-0.3°F
(-0.2°C)
61st Coolest Coolest since: 2000 1924
35th Warmest Warmest since: 2008 2015
Ties: 1957, 1993
May–Dec 2009
8-Month
58.3°F
(14.6°C)
58.5°F
(14.7°C)
-0.2°F
(-0.1°C)
64th Coolest Coolest since: 2008 1924
32nd Warmest Warmest since: 2007 2015
Ties: 1980
Apr–Dec 2009
9-Month
57.5°F
(14.2°C)
57.5°F
(14.2°C)
0.0°F
(0.0°C)
67th Coolest Coolest since: 2008 1924
29th Warmest Warmest since: 2008 2015
Ties: 2008
Mar–Dec 2009
10-Month
55.8°F
(13.2°C)
55.7°F
(13.2°C)
0.1°F
(0.0°C)
70th Coolest Coolest since: 2008 1940
26th Warmest Warmest since: 2008 2015
Ties: 2008
Feb–Dec 2009
11-Month
53.7°F
(12.1°C)
53.5°F
(11.9°C)
0.2°F
(0.2°C)
74th Coolest Coolest since: 2008 1924
22nd Warmest Warmest since: 2007 2012
Ties: 1931, 1949, 1994
Jan–Dec 2009
12-Month
51.2°F
(10.7°C)
51.4°F
(10.8°C)
-0.2°F
(-0.1°C)
68th Coolest Coolest since: 2003 1940
26th Warmest Warmest since: 2008 2012
Jul 2008–Dec 2009
18-Month
52.8°F
(11.6°C)
53.0°F
(11.7°C)
-0.2°F
(-0.1°C)
63rd Coolest Coolest since: 2001 1940
29th Warmest Warmest since: 2008 2012, 2016
Ties: 1973, 1983
Jan 2008–Dec 2009
24-Month
51.5°F
(10.8°C)
51.3°F
(10.7°C)
0.2°F
(0.1°C)
69th Coolest Coolest since: 2004 1940
21st Warmest Warmest since: 2008 2020
Ties: 2004, 2014
Jan 2007–Dec 2009
36-Month
51.8°F
(11.0°C)
51.3°F
(10.7°C)
0.5°F
(0.3°C)
68th Coolest Coolest since: 2005 1935
19th Warmest Warmest since: 2008 2020
Ties: 1992, 2002, 2005
Jan 2006–Dec 2009
48-Month
52.3°F
(11.3°C)
51.3°F
(10.7°C)
1.0°F
(0.6°C)
70th Coolest Coolest since: 2006 1943
14th Warmest Warmest since: 2008 2020
Ties: 2006
Jan 2005–Dec 2009
60-Month
52.3°F
(11.3°C)
51.2°F
(10.7°C)
1.1°F
(0.6°C)
66th Coolest Coolest since: 2007 1943, 1944
15th Warmest Warmest since: 2008 2020
Ties: 2007

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published March 2021, retrieved on March 8, 2021 from https://www.ncdc.noaa.gov/cag/