Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Pennsylvania

Average Temperature Rankings, December 2018

View Period (Months):
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  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • 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:
1989
20th Warmest
Warmest since:
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:
1917
52nd Warmest
Warmest since:
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:
1917
43rd Warmest
Warmest since:
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:
1917
18th Warmest
Warmest since:
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:
1917
12th Warmest
Warmest since:
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:
1976
11th Warmest
Warmest since:
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:
1917
11th Warmest
Warmest since:
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:
1917
6th Warmest
Warmest since:
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:
1917
14th Warmest
Warmest since:
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:
1917
20th Warmest
Warmest since:
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:
1917
12th Warmest
Warmest since:
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:
1917
20th Warmest
Warmest since:
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:
1904
18th Warmest
Warmest since:
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:
1905
9th Warmest
Warmest since:
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:
1905, 1926
3rd Warmest
Warmest since:
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:
1907
5th Warmest
Warmest since:
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:
1905, 1907
9th Warmest
Warmest since:
2020, 2021
Ties: 2001, 2015

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