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 December 2019. For more information, please see Climatological Rankings.


Pennsylvania

Average Temperature Rankings, September 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1899
1-Month
59.9°F
(15.5°C)
61.7°F
(16.5°C)
-1.8°F
(-1.0°C)
23rd Coolest Coolest to Date 1918
103rd Warmest Warmest since: 1898 1961
Aug–Sep 1899
2-Month
64.7°F
(18.2°C)
65.0°F
(18.3°C)
-0.3°F
(-0.1°C)
48th Coolest Coolest since: 1897 1963
78th Warmest Warmest since: 1898 2016
Ties: 1979, 2014
Jul–Sep 1899
3-Month
66.7°F
(19.3°C)
66.9°F
(19.4°C)
-0.2°F
(-0.1°C)
53rd Coolest Coolest since: 1897 1924, 1962, 1963, 1976
73rd Warmest Warmest since: 1898 2016
Ties: 1905, 1943, 1969, 1985, 1989
Jun–Sep 1899
4-Month
67.1°F
(19.5°C)
66.6°F
(19.2°C)
0.5°F
(0.3°C)
73rd Coolest Coolest since: 1897 1924
53rd Warmest Warmest since: 1898 2005, 2016
Ties: 1922, 1932, 1941, 1953
May–Sep 1899
5-Month
65.6°F
(18.7°C)
64.9°F
(18.3°C)
0.7°F
(0.4°C)
84th Coolest Coolest since: 1897 1924
42nd Warmest Warmest since: 1898 2018
Apr–Sep 1899
6-Month
62.7°F
(17.1°C)
61.8°F
(16.6°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 1897 1907, 1924
39th Warmest Warmest since: 1898 2010
Ties: 1908, 1952, 1980, 2013
Mar–Sep 1899
7-Month
58.6°F
(14.8°C)
58.1°F
(14.5°C)
0.5°F
(0.3°C)
73rd Coolest Coolest since: 1897 1924
53rd Warmest Warmest since: 1898 2010
Ties: 1918, 1925, 1929, 1946, 1968, 1983, 2013
Feb–Sep 1899
8-Month
53.8°F
(12.1°C)
54.2°F
(12.3°C)
-0.4°F
(-0.2°C)
43rd Coolest Coolest since: 1897 1924
83rd Warmest Warmest since: 1898 2012
Ties: 1915, 1997
Jan–Sep 1899
9-Month
50.5°F
(10.3°C)
51.0°F
(10.6°C)
-0.5°F
(-0.3°C)
40th Coolest Coolest since: 1897 1940
86th Warmest Warmest since: 1898 2012
Ties: 1960, 1992
Dec 1898–Sep 1899
10-Month
48.2°F
(9.0°C)
48.8°F
(9.3°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 1897 1904
86th Warmest Warmest since: 1898 2012
Ties: 1981
Nov 1898–Sep 1899
11-Month
47.2°F
(8.4°C)
47.9°F
(8.8°C)
-0.7°F
(-0.4°C)
29th Coolest Coolest to Date 1904
96th Warmest Warmest since: 1898 2012
Ties: 1914, 1916, 1923, 1968, 2003
Oct 1898–Sep 1899
12-Month
47.6°F
(8.7°C)
48.2°F
(9.0°C)
-0.6°F
(-0.3°C)
31st Coolest Coolest since: 1897 1904
94th Warmest Warmest since: 1898 2012
Ties: 1897, 1916, 1934, 1965, 1966
Apr 1898–Sep 1899
18-Month
52.7°F
(11.5°C)
52.7°F
(11.5°C)
0.0°F
(0.0°C)
50th Coolest Coolest since: 1896 1918
75th Warmest Warmest since: 1898 2012
Ties: 1896, 1923, 1969, 1980
Oct 1897–Sep 1899
24-Month
48.6°F
(9.2°C)
48.1°F
(8.9°C)
0.5°F
(0.3°C)
82nd Coolest Coolest since: 1898 1905
42nd Warmest Warmest since: 1898 2017
Ties: 1898, 1914, 1934, 1952, 1973, 1976
Oct 1896–Sep 1899
36-Month
48.3°F
(9.1°C)
48.1°F
(8.9°C)
0.2°F
(0.2°C)
61st Coolest Coolest to Date 1979
62nd Warmest Warmest since: 1898 2018
Ties: 1901, 1915, 1938, 1948, 1973, 1995, 2015
Oct 1895–Sep 1899
48-Month
48.2°F
(9.0°C)
48.2°F
(9.0°C)
0.0°F
(0.0°C)
54th Coolest Coolest to Date 1907
68th Warmest Warmest to Date 2019
Ties: 1903, 1936, 1938, 1940, 1942, 1960, 1985

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 27, 2020 from https://www.ncdc.noaa.gov/cag/