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


Pennsylvania

Average Temperature Rankings, December 1978

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1978
1-Month
30.3°F
(-0.9°C)
28.9°F
(-1.7°C)
1.4°F
(0.8°C)
67th Coolest Coolest since: 1977 1989
60th Warmest Warmest since: 1974 2015
Ties: 1992
Nov–Dec 1978
2-Month
35.6°F
(2.0°C)
34.1°F
(1.2°C)
1.5°F
(0.8°C)
84th Coolest Coolest since: 1977 1917
43rd Warmest Warmest since: 1975 2015
Ties: 1902
Oct–Dec 1978
3-Month
39.9°F
(4.4°C)
39.7°F
(4.3°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1977 1917
61st Warmest Warmest since: 1975 2015
Ties: 1908, 1911, 1963, 1996
Sep–Dec 1978
4-Month
45.5°F
(7.5°C)
45.2°F
(7.3°C)
0.3°F
(0.2°C)
61st Coolest Coolest since: 1977 1917
66th Warmest Warmest since: 1975 2015
Ties: 1906, 2008
Aug–Dec 1978
5-Month
50.5°F
(10.3°C)
49.8°F
(9.9°C)
0.7°F
(0.4°C)
75th Coolest Coolest since: 1977 1917
52nd Warmest Warmest since: 1975 2015
Ties: 1922
Jul–Dec 1978
6-Month
53.5°F
(11.9°C)
53.3°F
(11.8°C)
0.2°F
(0.1°C)
58th Coolest Coolest since: 1977 1976
69th Warmest Warmest since: 1977 1931, 2015
Ties: 1897, 1899, 1956, 1977
Jun–Dec 1978
7-Month
55.1°F
(12.8°C)
55.0°F
(12.8°C)
0.1°F
(0.0°C)
50th Coolest Coolest since: 1977 1917
77th Warmest Warmest since: 1975 2015
Ties: 1955, 1986, 1993, 2009
May–Dec 1978
8-Month
55.3°F
(12.9°C)
55.4°F
(13.0°C)
-0.1°F
(-0.1°C)
44th Coolest Coolest since: 1976 1917
83rd Warmest Warmest since: 1977 2015
Ties: 1902, 1956, 2008
Apr–Dec 1978
9-Month
54.2°F
(12.3°C)
54.4°F
(12.4°C)
-0.2°F
(-0.1°C)
42nd Coolest Coolest since: 1976 1917
85th Warmest Warmest since: 1977 2015
Ties: 1915, 1995
Mar–Dec 1978
10-Month
52.0°F
(11.1°C)
52.6°F
(11.4°C)
-0.6°F
(-0.3°C)
28th Coolest Coolest since: 1976 1917
99th Warmest Warmest since: 1977 2012
Ties: 1932, 1935, 1956, 1969, 1981
Feb–Dec 1978
11-Month
48.8°F
(9.3°C)
50.2°F
(10.1°C)
-1.4°F
(-0.8°C)
10th Coolest Coolest since: 1967 1917
117th Warmest Warmest since: 1977 2012
Ties: 1914
Jan–Dec 1978
12-Month
46.4°F
(8.0°C)
48.1°F
(8.9°C)
-1.7°F
(-0.9°C)
8th Coolest Coolest since: 1958 1917
119th Warmest Warmest since: 1977 1998, 2012
Jul 1977–Dec 1978
18-Month
48.8°F
(9.3°C)
49.9°F
(9.9°C)
-1.1°F
(-0.6°C)
12th Coolest Coolest since: 1977 1904
114th Warmest Warmest since: 1976 2012
Jan 1977–Dec 1978
24-Month
47.2°F
(8.4°C)
48.2°F
(9.0°C)
-1.0°F
(-0.6°C)
11th Coolest Coolest since: 1967 1905
115th Warmest Warmest since: 1977 2012
Ties: 1927
Jan 1976–Dec 1978
36-Month
47.1°F
(8.4°C)
48.2°F
(9.0°C)
-1.1°F
(-0.6°C)
7th Coolest Coolest since: 1963 1905, 1926
118th Warmest Warmest since: 1977 2012
Ties: 1963, 1980
Jan 1975–Dec 1978
48-Month
47.5°F
(8.6°C)
48.1°F
(8.9°C)
-0.6°F
(-0.3°C)
20th Coolest Coolest since: 1969 1907
104th Warmest Warmest since: 1977 2013, 2019, 2020
Ties: 1910, 1928, 1967
Jan 1974–Dec 1978
60-Month
47.6°F
(8.7°C)
48.1°F
(8.9°C)
-0.5°F
(-0.2°C)
25th Coolest Coolest since: 1970 1905, 1907
98th Warmest Warmest since: 1977 2020
Ties: 1909, 1929, 1963

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 1, 2021 from https://www.ncdc.noaa.gov/cag/