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 October 2020. For more information, please see Climatological Rankings.


Allentown, Pennsylvania

Average Temperature Rankings, December 1999

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
December 1999
1-Month
35.5°F
(1.9°C)
33.0°F
(0.6°C)
2.5°F
(1.3°C)
79th Coolest Coolest since: 1997 1989
19th Warmest Warmest since: 1998 2015
Nov–Dec 1999
2-Month
41.2°F
(5.1°C)
38.2°F
(3.4°C)
3.0°F
(1.7°C)
88th Coolest Coolest since: 1998 1976, 1989
8th Warmest Warmest since: 1994 2015
Oct–Dec 1999
3-Month
44.6°F
(7.0°C)
43.3°F
(6.3°C)
1.3°F
(0.7°C)
75th Coolest Coolest since: 1997 1976
20th Warmest Warmest since: 1998 2015
Ties: 1973
Sep–Dec 1999
4-Month
49.9°F
(9.9°C)
48.6°F
(9.2°C)
1.3°F
(0.7°C)
75th Coolest Coolest since: 1997 1976
20th Warmest Warmest since: 1998 2015
Ties: 1961, 2014
Aug–Dec 1999
5-Month
54.5°F
(12.5°C)
53.4°F
(11.9°C)
1.1°F
(0.6°C)
77th Coolest Coolest since: 1997 1976
18th Warmest Warmest since: 1998 2015
Ties: 1994, 2012
Jul–Dec 1999
6-Month
58.5°F
(14.7°C)
56.8°F
(13.8°C)
1.7°F
(0.9°C)
86th Coolest Coolest since: 1998 1976
9th Warmest Warmest since: 1931 2015
Ties: 2007
Jun–Dec 1999
7-Month
60.2°F
(15.7°C)
58.7°F
(14.8°C)
1.5°F
(0.9°C)
84th Coolest Coolest since: 1998 1976
11th Warmest Warmest since: 1994 2015
May–Dec 1999
8-Month
60.2°F
(15.7°C)
58.9°F
(14.9°C)
1.3°F
(0.8°C)
82nd Coolest Coolest since: 1997 1924, 1976
13th Warmest Warmest since: 1998 2015
Ties: 1994, 2010
Apr–Dec 1999
9-Month
59.0°F
(15.0°C)
58.0°F
(14.4°C)
1.0°F
(0.6°C)
79th Coolest Coolest since: 1997 1924
16th Warmest Warmest since: 1998 2015
Mar–Dec 1999
10-Month
57.0°F
(13.9°C)
56.2°F
(13.4°C)
0.8°F
(0.5°C)
79th Coolest Coolest since: 1997 1940
16th Warmest Warmest since: 1998 2015
Feb–Dec 1999
11-Month
54.9°F
(12.7°C)
53.9°F
(12.2°C)
1.0°F
(0.5°C)
81st Coolest Coolest since: 1997 1924
14th Warmest Warmest since: 1998 2012
Jan–Dec 1999
12-Month
52.9°F
(11.6°C)
51.8°F
(11.0°C)
1.1°F
(0.6°C)
80th Coolest Coolest since: 1997 1940
13th Warmest Warmest since: 1998 2012
Ties: 1949, 2015
Jul 1998–Dec 1999
18-Month
54.7°F
(12.6°C)
53.5°F
(11.9°C)
1.2°F
(0.7°C)
81st Coolest Coolest since: 1997 1940
10th Warmest Warmest since: 1998 2012, 2016
Ties: 2002, 2007
Jan 1998–Dec 1999
24-Month
53.8°F
(12.1°C)
51.8°F
(11.0°C)
2.0°F
(1.1°C)
84th Coolest Coolest since: 1998 1940
5th Warmest Warmest to Date 2012
Jan 1997–Dec 1999
36-Month
52.8°F
(11.6°C)
51.8°F
(11.0°C)
1.0°F
(0.6°C)
76th Coolest Coolest since: 1998 1935, 1940, 1941, 1942
10th Warmest Warmest to Date 2019
Ties: 2000
Jan 1996–Dec 1999
48-Month
52.1°F
(11.2°C)
51.7°F
(10.9°C)
0.4°F
(0.3°C)
62nd Coolest Coolest since: 1998 1943
21st Warmest Warmest since: 1993 2019
Jan 1995–Dec 1999
60-Month
52.0°F
(11.1°C)
51.7°F
(10.9°C)
0.3°F
(0.2°C)
60th Coolest Coolest since: 1998 1943, 1944
20th Warmest Warmest since: 1994 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published November 2020, retrieved on November 26, 2020 from https://www.ncdc.noaa.gov/cag/