The Pennsylvania State Climatologist is a service to the Commonwealth by the College of Earth and Mineral Sciences and Penn State.

Division Mean Temperature and Departures from Normal

Temperature data is reported in degrees Farenheit *Values since January 2011 are provisional

Year	January	February	March	April	May	June	July	August	September	October	November	December
Mean	26.4	29.0	37.5	48.2	58.1	66.4	70.6	69.0	62.0	50.8	40.9	31.1
2024	-11.5	6.0	4.6
2023								-0.4	-0.0	2.6	-1.3	6.5
2023	8.4	7.5	2.1	0.8	-4.4	-3.4	0.7	-0.4	-0.0	2.6	-1.3	6.5
2022	-2.8	2.5	1.0	-1.2	1.4	1.1	1.9	1.6	2.7	-1.5	3.5	-0.0
2021	3.9	-2.5	5.0	0.7	-1.4	1.9	0.7	4.0	2.4	5.6	-1.7	6.2
2020	6.0	6.1	5.2	-2.4	-4.2	1.7	4.0	3.2	1.4	1.6	3.2	1.4
2019	-2.9	-1.3	-3.9	2.5	4.0	1.0	3.1	1.8	4.2	2.2	-2.2	-0.5
2018	-3.3	5.7	-5.9	-4.9	6.5	-0.3	1.2	3.3	6.3	5.6	-3.9	1.9
2017	4.8	7.3	-2.0	6.3	-1.4	1.8	1.6	-3.0	1.5	6.1	-0.3	-0.6
2016	-1.5	1.5	6.0	-0.5	-1.9	0.9	3.0	4.8	3.1	3.2	3.5	0.7
2015	-3.0	-10.8	-4.4	0.9	4.5	0.9	-0.1	0.1	4.4	0.0	5.6	9.8
2014	-8.4	-5.7	-6.5	-0.4	0.4	1.1	-2.4	-2.1	1.2	3.0	-4.5	3.0
2013	3.4	-2.2	-5.2	2.2	-0.6	0.9	1.4	-1.5	-1.1	2.2	-5.0	0.1
2012	4.6	5.7	11.0	0.2	5.7	-0.9	2.4	0.6	0.8	1.4	-3.7	3.1
2011	-3.8	0.7	-0.7	1.5	3.4	1.9	3.8	0.3	0.6	-1.3	3.9	4.5
2010	-0.7	-4.4	4.1	4.3	1.8	3.1	2.4	0.8	0.9	1.2	-0.2	-6.8
2009	-5.3	0.9	0.4	0.0	-0.5	-1.5	-3.7	1.7	-0.3	-2.3	3.7	-2.8
2008	2.4	-2.0	-2.4	3.1	-4.0	2.5	0.5	-1.7	1.2	-2.2	-2.1	-0.3
2007	5.4	-8.9	0.3	-3.3	2.3	0.9	-2.3	1.5	1.8	6.2	-1.9	1.0
2006	8.9	0.7	-0.3	3.2	-1.4	-1.0	1.6	1.8	-2.0	-1.8	2.9	6.3
2005	1.1	0.8	-5.4	1.4	-5.3	2.6	1.8	2.5	3.0	1.5	1.6	-4.7
2004	-5.9	-3.4	1.4	0.1	4.5	-1.9	-1.4	-1.2	1.2	-0.4	3.1	-0.2
2003	-4.8	-5.3	0.4	0.6	-1.7	-2.0	-0.5	2.3	-0.9	-3.1	3.6	-1.0
2002	7.9	4.7	0.7	2.2	-2.0	2.1	2.4	3.2	3.1	-1.2	-1.0	-3.2
2001	-0.2	3.6	-4.5	1.9	0.1	0.0	-2.9	2.6	-1.4	0.6	5.2	5.8
2000	0.7	4.0	4.9	-1.0	2.7	1.6	-4.1	-1.6	-1.0	1.6	-3.5	-9.4
1999	1.6	3.0	-3.4	0.5	0.8	0.1	3.1	-0.3	0.1	-1.3	4.8	1.7
1998	9.6	5.9	2.7	2.2	4.5	-0.7	-1.2	1.1	4.2	1.6	1.8	6.3
1997	-0.9	4.4	0.7	-3.5	-5.2	-1.1	-1.0	-2.1	-1.7	-0.4	-3.8	1.5
1996	-1.7	-1.6	-5.5	-0.1	-2.1	1.8	-2.2	-0.5	-0.1	-0.2	-5.7	2.2
1995	2.1	-5.5	2.0	-3.4	-1.3	1.4	1.3	3.8	-1.3	3.1	-5.8	-4.8
1994	-8.4	-3.5	-3.8	3.2	-4.9	2.6	1.0	-2.9	-1.9	-2.1	3.6	3.4
1993	4.5	-3.8	-4.0	-0.5	1.6	-0.2	2.0	1.3	-1.0	-2.3	-1.1	-2.2
1992	2.4	2.9	-1.7	0.4	-2.1	-3.2	0.1	-3.1	-1.2	-2.9	-0.3	-1.2
1991	1.5	4.5	3.2	2.9	7.6	2.9	2.8	2.6	0.4	2.1	-0.7	3.0
1990	9.2	6.8	3.6	1.1	-2.3	0.6	-0.7	-0.7	-0.6	3.1	3.1	3.5
1989	5.9	-0.3	-0.6	-2.8	-2.2	1.1	0.7	-0.5	-0.2	1.0	-2.3	-13.0
1988	-4.0	-1.5	-0.2	-1.3	0.4	-0.9	3.0	2.7	-2.8	-4.9	0.4	-1.3
1987	-0.9	-0.4	1.9	0.0	1.6	2.6	2.4	-0.4	-0.3	-4.8	1.3	1.9
1986	0.1	-0.9	0.6	1.5	1.1	-0.1	0.6	-2.3	1.1	1.5	-2.2	0.4
1985	-4.8	-1.2	1.5	3.7	1.4	-2.9	-1.0	-0.5	1.6	1.7	4.5	-4.5
1984	-3.3	5.1	-6.8	-1.1	-2.5	1.4	-2.0	1.1	-2.4	6.2	-2.1	6.9
1983	2.0	1.5	1.1	-2.8	-3.6	-0.4	1.3	2.7	0.2	0.9	1.0	-5.1
1982	-6.6	-0.4	-0.8	-3.1	3.6	-2.6	0.1	-3.2	-0.9	0.5	2.3	6.7
1981	-4.5	3.0	-2.3	3.4	-0.1	0.5	-1.3	-1.1	-0.2	-2.6	-0.7	-2.3
1980	0.1	-4.5	-3.4	-0.5	1.4	-3.0	0.4	2.2	2.3	-3.4	-3.1	-2.7
1979	-3.7	-11.1	3.0	-0.6	-0.9	-1.4	-1.7	-0.1	0.0	0.1	3.6	2.8
1978	-5.8	-10.5	-3.7	-0.9	-1.0	-0.5	-1.3	2.2	2.6	-1.9	1.6	1.0
1977	-12.3	-0.9	5.6	3.1	4.5	-2.1	1.6	0.1	2.1	-2.1	1.9	-3.4
1976	-2.6	7.6	5.5	3.1	-2.3	2.9	-2.5	-2.2	-2.0	-4.5	-5.8	-5.6
1975	4.8	0.9	-2.7	-5.1	3.8	0.6	0.4	2.4	-2.9	4.2	5.7	0.7
1974	7.6	0.2	1.3	1.5	-1.2	-2.8	-0.5	0.7	-1.6	-1.7	1.5	1.0
1973	4.6	-1.2	7.2	0.0	-3.7	2.2	-0.5	1.6	1.9	3.2	2.1	0.9
1972	5.4	-3.6	-1.8	-0.5	1.6	-3.4	0.8	-0.3	1.8	-3.6	-2.9	4.8
1971	-2.6	0.8	-2.9	-0.8	-1.5	3.5	-1.1	-2.2	4.3	6.4	0.0	6.3
1970	-4.8	-1.1	-3.8	1.9	4.0	0.1	0.3	1.5	4.2	4.0	1.7	0.9
1969	-0.9	-0.3	-3.3	3.1	2.6	2.1	0.8	0.4	0.4	-0.9	-1.5	-4.9
1968	-3.4	-4.1	3.7	3.0	-3.4	0.0	1.3	3.0	1.3	1.8	1.1	-3.9
1967	7.1	-3.7	-0.3	2.8	-5.5	2.5	-1.0	-1.0	-2.5	-0.8	-3.6	1.8
1966	-2.6	0.0	2.6	-3.3	-2.4	0.5	2.5	1.0	-2.0	-2.0	1.0	-1.4
1965	-0.5	-0.1	-3.8	-1.3	4.8	-0.6	-0.7	0.0	3.3	-1.3	0.8	5.0
1964	2.6	-3.3	1.2	-0.6	2.9	1.0	1.0	-2.9	-0.1	-2.4	3.0	0.9
1963	-2.3	-7.4	2.5	1.2	-1.4	0.2	-0.4	-2.3	-1.9	5.8	3.0	-7.3
1962	0.1	-1.3	-2.0	0.1	5.5	1.0	-1.7	0.0	-3.2	1.9	-2.8	-5.9
1961	-3.6	2.1	1.5	-5.1	-3.6	-0.7	0.2	1.4	5.6	2.1	0.9	-1.2
1960	4.1	0.3	-11.2	5.0	-1.6	-0.2	-2.9	2.1	2.3	-0.6	1.4	-8.3
1959	-1.0	1.0	-1.7	2.6	4.7	1.5	1.3	4.3	3.8	2.8	-3.0	2.9
1958	-0.7	-6.8	-3.2	1.4	-0.9	-3.5	1.3	-1.0	0.1	-0.3	1.9	-8.1
1957	-1.6	4.7	0.1	2.4	1.3	2.7	-0.8	-1.5	1.5	-2.6	0.3	3.2
1956	0.2	3.3	-1.4	-2.3	-1.7	0.5	-1.7	-0.8	-2.8	2.1	-1.1	6.5
1955	0.0	-0.1	2.1	4.3	3.3	-3.0	4.9	4.5	0.5	1.7	-4.1	-4.3
1954	0.6	6.5	-0.7	4.9	-2.4	1.2	-0.3	-1.2	1.9	3.4	-1.7	-1.4
1953	6.2	4.2	1.4	-1.4	4.2	1.7	0.9	0.4	0.5	3.6	1.2	3.6
1952	5.7	3.8	-1.4	1.3	-1.7	3.7	3.3	0.9	-0.4	-3.2	1.2	0.9
1951	3.5	1.9	0.0	-0.9	0.8	0.6	0.2	-0.3	0.4	3.3	-5.9	0.0
1950	11.2	0.0	-5.8	-5.1	0.8	-0.6	-3.0	-1.7	-3.1	2.4	-2.6	-5.3
1949	8.2	5.8	0.6	-0.9	0.7	2.6	3.5	1.1	-3.8	5.1	-1.0	0.6
1948	-5.9	-0.4	3.3	2.3	-0.2	0.5	0.4	0.1	0.9	-1.6	2.4	0.7
1947	7.3	-6.3	-6.5	1.3	-0.1	-0.3	-1.9	4.7	1.5	6.8	-3.9	-2.1
1946	1.9	0.3	8.3	-0.8	0.1	-1.6	-0.4	-3.7	0.9	4.7	2.5	2.4
1945	-5.8	-0.3	10.5	3.2	-2.5	-0.3	-0.2	-0.2	2.9	-0.3	-0.4	-6.2
1944	2.6	0.2	-4.2	-3.6	7.0	2.1	0.1	1.1	0.4	-0.7	-0.8	-5.7
1943	1.3	-0.3	-1.6	-6.7	2.0	5.8	0.4	0.3	-2.4	-2.2	-4.4	-3.5
1942	0.5	-3.7	1.5	3.9	3.5	2.2	1.2	-0.8	0.3	2.2	-1.1	-5.2
1941	-0.9	-5.2	-6.9	5.3	0.8	0.6	0.8	-2.2	2.2	4.3	1.2	2.8
1940	-10.2	-0.9	-6.8	-4.8	-1.4	-0.3	-0.5	-2.2	-3.0	-2.0	-2.2	3.8
1939	3.5	3.5	0.8	-3.2	3.1	2.2	-1.1	2.8	2.7	2.3	-2.4	2.1
1938	1.4	5.0	4.5	0.9	-0.3	-1.0	1.2	3.3	-1.2	2.6	1.1	-0.9
1937	8.7	0.4	-3.3	-2.5	1.0	2.5	0.9	4.0	-1.4	-2.1	-1.9	-3.0
1936	-4.4	-7.7	4.4	-3.8	3.8	1.1	1.5	3.5	3.1	2.3	-2.7	1.0
1935	1.1	-0.3	5.8	-2.1	-2.6	0.0	3.6	1.3	-0.4	1.1	2.1	-5.9
1934	5.4	-10.0	-2.0	0.5	3.8	5.9	4.4	-0.7	3.2	0.8	2.7	-0.8
1933	9.8	1.8	-2.0	1.9	3.4	4.1	1.3	1.2	3.9	0.2	-3.6	1.3
1932	13.2	7.1	-4.9	-1.5	1.7	1.9	0.9	2.0	2.5	1.4	-3.2	1.7
1931	4.4	2.8	-3.0	-1.0	1.0	1.9	4.7	1.4	6.5	4.1	8.1	6.9
1930	1.6	5.6	-0.4	-0.7	2.4	1.5	2.1	0.4	5.1	-0.3	-1.2	-3.6
1929	-0.1	-2.4	5.3	2.6	-0.4	0.2	0.4	-2.2	2.4	-1.2	-1.5	0.4
1928	2.3	0.8	-0.6	-3.3	-0.8	-1.5	1.4	3.3	-3.3	3.6	1.5	1.5
1927	0.6	5.6	4.4	-1.7	-0.1	-3.3	0.4	-4.8	1.6	4.2	4.1	0.2
1926	0.1	0.2	-4.8	-3.9	0.4	-2.7	0.7	2.1	1.7	0.6	-2.4	-4.4
1925	-1.4	6.1	2.1	2.6	-3.7	4.9	-0.3	-0.5	5.0	-5.7	-3.4	-1.8
1924	0.6	-2.3	-2.1	-2.7	-4.1	-1.1	-1.6	0.2	-3.9	1.5	-2.1	-2.4
1923	3.2	-4.0	0.3	-0.7	-0.5	4.2	0.0	-0.6	2.0	-0.7	-1.9	8.1
1922	-2.3	3.4	1.9	1.2	3.5	2.5	0.7	-1.0	3.0	3.7	1.0	0.0
1921	3.6	3.3	10.8	5.7	0.8	3.7	3.8	-1.9	5.8	1.1	0.3	0.2
1920	-5.2	-3.6	0.7	-3.5	-2.3	0.0	-1.7	0.0	1.2	6.0	-1.9	0.3
1919	4.4	1.6	3.3	-0.5	0.4	3.4	1.2	-1.7	1.1	5.9	-0.9	-8.1
1918	-11.9	-0.6	4.0	-1.7	6.4	-0.6	-1.8	3.8	-3.7	4.5	-0.2	4.6
1917	0.3	-3.7	-0.9	-0.1	-4.9	0.0	0.4	1.1	-4.5	-4.9	-4.2	-11.3
1916	6.7	-3.2	-6.8	-1.2	2.5	-3.2	2.4	1.8	-1.3	-0.1	-0.6	-2.8
1915	0.0	2.9	-6.3	4.5	-2.2	-1.6	-0.5	-1.8	2.9	2.3	-0.9	-3.8
1914	4.0	-7.3	-4.2	-1.4	2.6	2.2	0.3	1.6	-2.3	4.8	-1.9	-6.1
1913	9.0	-1.6	4.6	0.8	-0.1	1.5	0.6	0.4	-1.0	3.0	1.4	1.7
1912	-9.1	-6.2	-3.8	2.2	2.3	-1.1	-0.4	-2.6	2.7	2.2	0.6	1.6
1911	4.7	2.1	-3.4	-3.3	6.2	1.7	2.4	1.5	3.0	0.6	-4.9	3.7
1910	-0.4	-2.8	7.1	3.0	-2.6	-1.8	1.4	-0.2	3.7	4.0	-6.1	-8.7
1909	3.0	6.5	-2.9	-0.6	0.3	1.9	-1.4	-0.7	-0.2	-3.6	4.7	-6.0
1908	0.3	-5.2	2.9	1.3	2.2	1.4	2.5	-0.6	1.2	2.5	-1.4	-0.6
1907	3.1	-5.8	4.4	-5.7	-3.8	-4.3	0.1	-2.0	1.9	-3.5	-3.3	-0.7
1906	7.3	-1.9	-6.0	1.3	1.3	2.0	-0.2	3.2	3.7	-0.4	-0.3	-1.6
1905	-3.5	-9.0	2.2	-0.4	2.4	1.2	1.2	0.1	0.8	1.6	-3.3	0.2
1904	-7.5	-7.8	-1.6	-4.5	2.3	0.6	-0.7	-1.9	1.5	-0.8	-2.9	-6.5
1903	-1.5	0.3	8.2	-0.3	3.0	-3.4	0.4	-2.4	-0.6	1.8	-5.4	-7.0
1902	-2.5	-7.1	2.3	-1.7	1.7	-0.3	1.0	-2.1	-0.6	1.4	5.0	-4.5
1901	1.2	-8.1	-0.3	-3.0	0.1	1.6	4.9	2.1	0.1	0.3	-6.6	-4.5
1900	1.3	-3.6	-6.9	-0.3	1.8	2.5	2.9	5.6	6.5	6.7	0.9	-1.8
1899	-1.1	-8.1	-1.5	1.2	2.5	2.6	0.8	1.1	-1.4	2.5	-0.8	-1.9

Mailing Address:

Pennsylvania State Climatologist
503 Walker Building
University Park, PA 16802

Online:

Data Request Form

E-mail:

psc@meteo.psu.edu

Phone:

814-865-8732