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 1909

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1909
1-Month
24.4°F
(-4.2°C)
28.9°F
(-1.7°C)
-4.5°F
(-2.5°C)
15th Coolest Coolest since: 1904 1989
112th Warmest Warmest since: 1908 2015
Ties: 1926
Nov–Dec 1909
2-Month
34.0°F
(1.1°C)
34.1°F
(1.2°C)
-0.1°F
(-0.1°C)
50th Coolest Coolest since: 1908 1917
77th Warmest Warmest since: 1902 2015
Ties: 1929, 1939
Oct–Dec 1909
3-Month
38.0°F
(3.3°C)
39.6°F
(4.2°C)
-1.6°F
(-0.9°C)
23rd Coolest Coolest since: 1907 1917
104th Warmest Warmest since: 1908 2015
Sep–Dec 1909
4-Month
43.6°F
(6.4°C)
45.1°F
(7.3°C)
-1.5°F
(-0.9°C)
18th Coolest Coolest since: 1904 1917
109th Warmest Warmest since: 1908 2015
Ties: 1967, 1981
Aug–Dec 1909
5-Month
48.4°F
(9.1°C)
49.8°F
(9.9°C)
-1.4°F
(-0.8°C)
15th Coolest Coolest since: 1907 1917
112th Warmest Warmest since: 1908 2015
Ties: 1981
Jul–Dec 1909
6-Month
51.6°F
(10.9°C)
53.2°F
(11.8°C)
-1.6°F
(-0.9°C)
10th Coolest Coolest since: 1904 1976
117th Warmest Warmest since: 1908 1931, 2015
Ties: 1967
Jun–Dec 1909
7-Month
53.8°F
(12.1°C)
55.0°F
(12.8°C)
-1.2°F
(-0.7°C)
15th Coolest Coolest since: 1907 1917
112th Warmest Warmest since: 1908 2015
May–Dec 1909
8-Month
54.3°F
(12.4°C)
55.4°F
(13.0°C)
-1.1°F
(-0.6°C)
17th Coolest Coolest since: 1907 1917
110th Warmest Warmest since: 1908 2015
Ties: 1963, 2000
Apr–Dec 1909
9-Month
53.4°F
(11.9°C)
54.4°F
(12.4°C)
-1.0°F
(-0.5°C)
15th Coolest Coolest since: 1907 1917
112th Warmest Warmest since: 1908 2015
Ties: 1910, 1925, 1935, 1940
Mar–Dec 1909
10-Month
51.4°F
(10.8°C)
52.6°F
(11.4°C)
-1.2°F
(-0.6°C)
14th Coolest Coolest since: 1907 1917
113th Warmest Warmest since: 1908 2012
Ties: 1962
Feb–Dec 1909
11-Month
49.7°F
(9.8°C)
50.2°F
(10.1°C)
-0.5°F
(-0.3°C)
28th Coolest Coolest since: 1907 1917
99th Warmest Warmest since: 1908 2012
Ties: 1903, 1910, 1935, 1947, 1969, 1979
Jan–Dec 1909
12-Month
47.9°F
(8.8°C)
48.1°F
(8.9°C)
-0.2°F
(-0.1°C)
43rd Coolest Coolest since: 1907 1917
84th Warmest Warmest since: 1908 1998, 2012
Ties: 1897, 1899, 1928, 1929, 1956, 1977, 1982
Jul 1908–Dec 1909
18-Month
49.8°F
(9.9°C)
49.8°F
(9.9°C)
0.0°F
(0.0°C)
52nd Coolest Coolest since: 1908 1904
74th Warmest Warmest since: 1906 2012
Ties: 1923, 1928, 1950, 1956, 1960, 1972, 1994
Jan 1908–Dec 1909
24-Month
48.2°F
(9.0°C)
48.2°F
(9.0°C)
0.0°F
(0.0°C)
57th Coolest Coolest since: 1908 1905
69th Warmest Warmest since: 1901 2012
Ties: 1901, 1948, 1960, 1995, 2014
Jan 1907–Dec 1909
36-Month
47.5°F
(8.6°C)
48.1°F
(8.9°C)
-0.6°F
(-0.3°C)
23rd Coolest Coolest since: 1907 1905, 1926
102nd Warmest Warmest since: 1908 2012
Ties: 1897, 1903, 1928
Jan 1906–Dec 1909
48-Month
47.8°F
(8.8°C)
48.1°F
(8.9°C)
-0.3°F
(-0.1°C)
32nd Coolest Coolest since: 1908 1907
92nd Warmest Warmest since: 1903 2020
Ties: 1915, 1962
Jan 1905–Dec 1909
60-Month
47.6°F
(8.7°C)
48.1°F
(8.9°C)
-0.5°F
(-0.2°C)
25th Coolest Coolest since: 1908 1905, 1907
98th Warmest Warmest since: 1903 2020
Ties: 1929, 1963, 1978

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 28, 2021 from https://www.ncdc.noaa.gov/cag/