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 2015

View Period (Months):
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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
(1895-2022)
Warmest/Coolest
Since
Record
December 2015
1-Month
42.3°F
(5.7°C)
28.9°F
(-1.7°C)
13.4°F
(7.4°C)
128th Coolest
Coolest since:
1989
1st Warmest
Warmest to Date
2015
Nov–Dec 2015
2-Month
43.9°F
(6.6°C)
34.1°F
(1.2°C)
9.8°F
(5.4°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Oct–Dec 2015
3-Month
46.2°F
(7.9°C)
39.7°F
(4.3°C)
6.5°F
(3.6°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Sep–Dec 2015
4-Month
51.3°F
(10.7°C)
45.2°F
(7.3°C)
6.1°F
(3.4°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Aug–Dec 2015
5-Month
54.8°F
(12.7°C)
49.8°F
(9.9°C)
5.0°F
(2.8°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Jul–Dec 2015
6-Month
57.4°F
(14.1°C)
53.2°F
(11.8°C)
4.2°F
(2.3°C)
128th Coolest
Coolest since:
1976
1st Warmest
Warmest since:
1931, 2015
Ties: 1931
Jun–Dec 2015
7-Month
58.8°F
(14.9°C)
55.1°F
(12.8°C)
3.7°F
(2.1°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
May–Dec 2015
8-Month
59.4°F
(15.2°C)
55.4°F
(13.0°C)
4.0°F
(2.2°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Apr–Dec 2015
9-Month
58.1°F
(14.5°C)
54.4°F
(12.4°C)
3.7°F
(2.1°C)
128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2015
Mar–Dec 2015
10-Month
55.5°F
(13.1°C)
52.6°F
(11.4°C)
2.9°F
(1.7°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2021
Ties: 2016
Feb–Dec 2015
11-Month
51.9°F
(11.1°C)
50.2°F
(10.1°C)
1.7°F
(1.0°C)
109th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2012
Ties: 2002
Jan–Dec 2015
12-Month
49.5°F
(9.7°C)
48.2°F
(9.0°C)
1.3°F
(0.7°C)
105th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
1998, 2012
Ties: 1946, 2005, 2007
Jul 2014–Dec 2015
18-Month
50.9°F
(10.5°C)
49.9°F
(9.9°C)
1.0°F
(0.6°C)
102nd Coolest
Coolest since:
1904
26th Warmest
Warmest since:
2012
Ties: 1990
Jan 2014–Dec 2015
24-Month
48.4°F
(9.1°C)
48.1°F
(8.9°C)
0.3°F
(0.2°C)
74th Coolest
Coolest since:
1905
54th Warmest
Warmest since:
2021
Ties: 1911, 1923, 1956, 1973, 1985
Jan 2013–Dec 2015
36-Month
48.6°F
(9.2°C)
48.1°F
(8.9°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1905, 1926
48th Warmest
Warmest since:
2012
Ties: 1913, 1947, 1948
Jan 2012–Dec 2015
48-Month
49.4°F
(9.7°C)
48.1°F
(8.9°C)
1.3°F
(0.8°C)
111th Coolest
Coolest since:
1907
15th Warmest
Warmest since:
2021, 2022
Ties: 1933, 2009, 2011
Jan 2011–Dec 2015
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
10th Warmest
Warmest since:
2020, 2021
Ties: 2001, 2018

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