Climate at a Glance

Statewide 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.


Pennsylvania

Average Temperature Rankings, December 2018

View Period (Months):All1234567891011121824364860
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 2018
1-Month
33.5°F
(0.8°C)
28.9°F
(-1.7°C)
4.6°F
(2.5°C)
108th Coolest Coolest since: 2017 1989
20th Warmest Warmest since: 2015 2015
Nov–Dec 2018
2-Month
35.1°F
(1.7°C)
34.1°F
(1.2°C)
1.0°F
(0.5°C)
76th Coolest Coolest since: 2017 1917
52nd Warmest Warmest since: 2016 2015
Oct–Dec 2018
3-Month
40.8°F
(4.9°C)
39.6°F
(4.2°C)
1.2°F
(0.7°C)
85th Coolest Coolest since: 2013 1917
43rd Warmest Warmest since: 2017 2015
Ties: 2009
Sep–Dec 2018
4-Month
47.3°F
(8.5°C)
45.1°F
(7.3°C)
2.2°F
(1.2°C)
110th Coolest Coolest since: 2017 1917
18th Warmest Warmest since: 2016 2015
Ties: 1984, 1999
Aug–Dec 2018
5-Month
52.3°F
(11.3°C)
49.8°F
(9.9°C)
2.5°F
(1.4°C)
116th Coolest Coolest since: 2017 1917
12th Warmest Warmest since: 2016 2015
Jul–Dec 2018
6-Month
55.5°F
(13.1°C)
53.2°F
(11.8°C)
2.3°F
(1.3°C)
117th Coolest Coolest since: 2017 1976
11th Warmest Warmest since: 2016 1931, 2015
Jun–Dec 2018
7-Month
57.1°F
(13.9°C)
55.1°F
(12.8°C)
2.0°F
(1.1°C)
117th Coolest Coolest since: 2017 1917
11th Warmest Warmest since: 2016 2015
Ties: 1998
May–Dec 2018
8-Month
57.9°F
(14.4°C)
55.3°F
(12.9°C)
2.6°F
(1.5°C)
122nd Coolest Coolest since: 2017 1917
6th Warmest Warmest since: 2016 2015
Ties: 1900
Apr–Dec 2018
9-Month
56.3°F
(13.5°C)
54.4°F
(12.4°C)
1.9°F
(1.1°C)
114th Coolest Coolest since: 2017 1917
14th Warmest Warmest since: 2016 2015
Ties: 1959, 1999, 2006
Mar–Dec 2018
10-Month
54.0°F
(12.2°C)
52.6°F
(11.4°C)
1.4°F
(0.8°C)
108th Coolest Coolest since: 2017 1917
20th Warmest Warmest since: 2016 2021
Ties: 1900, 1990
Feb–Dec 2018
11-Month
52.2°F
(11.2°C)
50.2°F
(10.1°C)
2.0°F
(1.1°C)
116th Coolest Coolest since: 2015 1917
12th Warmest Warmest since: 2017 2012
Ties: 1990, 2006
Jan–Dec 2018
12-Month
49.8°F
(9.9°C)
48.2°F
(9.0°C)
1.6°F
(0.9°C)
108th Coolest Coolest since: 2015 1917
20th Warmest Warmest since: 2017 1998, 2012
Jul 2017–Dec 2018
18-Month
51.3°F
(10.7°C)
49.9°F
(9.9°C)
1.4°F
(0.8°C)
109th Coolest Coolest since: 2015 1904
18th Warmest Warmest since: 2017 2012
Ties: 1953
Jan 2017–Dec 2018
24-Month
50.2°F
(10.1°C)
48.1°F
(8.9°C)
2.1°F
(1.2°C)
118th Coolest Coolest since: 2016 1905
9th Warmest Warmest since: 2017 2021
Ties: 2016
Jan 2016–Dec 2018
36-Month
50.4°F
(10.2°C)
48.1°F
(8.9°C)
2.3°F
(1.3°C)
123rd Coolest Coolest since: 2017 1905, 1926
3rd Warmest Warmest since: 2013 2012
Ties: 2013
Jan 2015–Dec 2018
48-Month
50.2°F
(10.1°C)
48.1°F
(8.9°C)
2.1°F
(1.2°C)
120th Coolest Coolest since: 2017 1907
5th Warmest Warmest since: 2013 2021
Ties: 2012
Jan 2014–Dec 2018
60-Month
49.6°F
(9.8°C)
48.1°F
(8.9°C)
1.5°F
(0.9°C)
115th Coolest Coolest since: 2017 1905, 1907
9th Warmest Warmest since: 2016 2020, 2021
Ties: 2001, 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 23, 2022 from https://www.ncdc.noaa.gov/cag/