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


Pennsylvania

Average Temperature Rankings, December 2020

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
(1895-2020)
Warmest/Coolest
Since
Record
December 2020
1-Month
32.1°F
(0.1°C)
28.9°F
(-1.7°C)
3.2°F
(1.8°C)
96th Coolest Coolest since: 2017 1989
31st Warmest Warmest since: 2019 2015
Ties: 1997
Nov–Dec 2020
2-Month
38.4°F
(3.6°C)
34.1°F
(1.2°C)
4.3°F
(2.4°C)
116th Coolest Coolest since: 2019 1917
11th Warmest Warmest since: 2015 2015
Oct–Dec 2020
3-Month
43.1°F
(6.2°C)
39.7°F
(4.3°C)
3.4°F
(1.9°C)
117th Coolest Coolest since: 2019 1917
10th Warmest Warmest since: 2015 2015
Ties: 1998
Sep–Dec 2020
4-Month
47.8°F
(8.8°C)
45.1°F
(7.3°C)
2.7°F
(1.5°C)
113th Coolest Coolest since: 2019 1917
14th Warmest Warmest since: 2016 2015
Aug–Dec 2020
5-Month
52.6°F
(11.4°C)
49.8°F
(9.9°C)
2.8°F
(1.5°C)
118th Coolest Coolest since: 2019 1917
9th Warmest Warmest since: 2016 2015
Jul–Dec 2020
6-Month
56.3°F
(13.5°C)
53.2°F
(11.8°C)
3.1°F
(1.7°C)
122nd Coolest Coolest since: 2019 1976
5th Warmest Warmest since: 2016 1931, 2015
Jun–Dec 2020
7-Month
57.9°F
(14.4°C)
55.1°F
(12.8°C)
2.8°F
(1.6°C)
122nd Coolest Coolest since: 2019 1917
5th Warmest Warmest since: 2016 2015
May–Dec 2020
8-Month
57.6°F
(14.2°C)
55.3°F
(12.9°C)
2.3°F
(1.3°C)
118th Coolest Coolest since: 2019 1917
9th Warmest Warmest since: 2018 2015
Ties: 2007
Apr–Dec 2020
9-Month
56.2°F
(13.4°C)
54.4°F
(12.4°C)
1.8°F
(1.0°C)
110th Coolest Coolest since: 2017 1917
17th Warmest Warmest since: 2019 2015
Mar–Dec 2020
10-Month
54.9°F
(12.7°C)
52.6°F
(11.4°C)
2.3°F
(1.3°C)
118th Coolest Coolest since: 2019 1917
9th Warmest Warmest since: 2016 2012
Ties: 1931
Feb–Dec 2020
11-Month
52.9°F
(11.6°C)
50.2°F
(10.1°C)
2.7°F
(1.5°C)
122nd Coolest Coolest since: 2019 1917
5th Warmest Warmest since: 2016 2012
Ties: 1991
Jan–Dec 2020
12-Month
51.2°F
(10.7°C)
48.1°F
(8.9°C)
3.1°F
(1.8°C)
124th Coolest Coolest since: 2019 1917
3rd Warmest Warmest since: 2012 1998, 2012
Jul 2019–Dec 2020
18-Month
52.5°F
(11.4°C)
49.8°F
(9.9°C)
2.7°F
(1.5°C)
122nd Coolest Coolest since: 2019 1904
4th Warmest Warmest since: 2017 2012
Jan 2019–Dec 2020
24-Month
50.5°F
(10.3°C)
48.1°F
(8.9°C)
2.4°F
(1.4°C)
121st Coolest Coolest since: 2019 1905
5th Warmest Warmest since: 2017 2012
Jan 2018–Dec 2020
36-Month
50.3°F
(10.2°C)
48.1°F
(8.9°C)
2.2°F
(1.3°C)
121st Coolest Coolest since: 2019 1905, 1926
4th Warmest Warmest since: 2018 2012
Ties: 2017
Jan 2017–Dec 2020
48-Month
50.4°F
(10.2°C)
48.2°F
(9.0°C)
2.2°F
(1.2°C)
123rd Coolest Coolest since: 2019 1907
1st Warmest Warmest to Date 2020
Jan 2016–Dec 2020
60-Month
50.5°F
(10.3°C)
48.1°F
(8.9°C)
2.4°F
(1.4°C)
122nd Coolest Coolest since: 2019 1905, 1907
1st Warmest Warmest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 19, 2021 from https://www.ncdc.noaa.gov/cag/