Mailing Address:
Pennsylvania State Climatologist503 Walker Building
University Park, PA 16802
| Year | January | February | March | April | May | June | July | August | September | October | November | December | Yearly |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | 5.9 | 9.1 | 6.3 | 0.3 | 21.55 | ||||||||
| 2012 | 5.1 | 4.6 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 10.8 | 23.75 |
| 2011 | 18.4 | 15.9 | 13.1 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 51.2 |
| 2010 | 6.0 | 34.6 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 5.4 | 47.8 |
| 2009 | 14.8 | 4.7 | 2.8 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.6 | 0.0 | 13.7 | 37.7 |
| 2008 | 8.1 | 15.6 | 3.8 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 0.8 | 13.1 | 43.6 |
| 2007 | 2.6 | 14.6 | 15.8 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.4 | 21.2 | 60.8 |
| 2006 | 12.1 | 5.2 | 3.3 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 22.6 |
| 2005 | 27.8 | 13.1 | 22.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.6 | 13.8 | 77.6 |
| 2004 | 19.7 | 7.6 | 9.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 | 4.9 | 42.7 |
| 2003 | 15.3 | 30.2 | 8.9 | 4.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 14.8 | 75.2 |
| 2002 | 18.6 | 0.7 | 2.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 3.8 | 24.0 | 50.3 |
| 2001 | 13.0 | 15.5 | 12.7 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 43.4 |
| 2000 | 24.0 | 7.5 | 0.3 | 3.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.7 | 17.2 | 53.2 |
| 1999 | 8.0 | 5.2 | 8.1 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.5 | 22.3 |
| 1998 | 7.2 | 5.3 | 6.1 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 22.5 |
| 1997 | 8.9 | 7.8 | 8.1 | 11.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.2 | 16.0 | 55.1 |
| 1996 | 36.7 | 7.8 | 14.8 | 3.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 6.8 | 70.2 |
| 1995 | 3.4 | 10.7 | 3.5 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 18.0 | 19.7 | 56.6 |
| 1994 | 42.7 | 19.0 | 21.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 0.6 | 84.8 |
| 1993 | 4.7 | 12.0 | 25.9 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 2.2 | 8.0 | 55 |
| 1992 | 6.1 | 4.1 | 12.7 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 14.4 | 37.9 |
| 1991 | 9.8 | 7.2 | 7.9 | 1.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 4.2 | 31 |
| 1990 | 12.2 | 5.7 | 6.4 | 2.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 10.4 | 37.8 |
| 1989 | 3.6 | 4.2 | 3.8 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 8.5 | 23.2 |
| 1988 | 16.2 | 16.2 | 2.2 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 1.8 | 38.5 |
| 1987 | 37.8 | 6.4 | 2.5 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.2 | 5.5 | 59 |
| 1986 | 12.9 | 11.6 | 2.1 | 8.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 10.3 | 8.7 | 53.9 |
| 1985 | 10.8 | 14.3 | 0.7 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.4 | 14.7 | 43.8 |
| 1984 | 14.4 | 5.0 | 18.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.9 | 10.6 | 52.3 |
| 1983 | 9.4 | 16.8 | 2.7 | 22.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 2.9 | 57.3 |
| 1982 | 14.1 | 10.5 | 8.1 | 11.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 6.5 | 50.7 |
| 1981 | 9.7 | 6.6 | 5.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.7 | 17.3 | 41 |
| 1980 | 1.5 | 10.8 | 14.4 | 2.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.1 | 8.3 | 45.1 |
| 1979 | 12.2 | 12.5 | 0.7 | 2.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.5 | 5.6 | 34.4 |
| 1978 | 32.6 | 25.6 | 8.1 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.7 | 10.2 | 81.8 |
| 1977 | 17.1 | 13.2 | 14.5 | 0.9 | 3.2 | 0.0 | 0.0 | 0.0 | 0.0 | 3.9 | 4.6 | 12.7 | 70.1 |
| 1976 | 16.8 | 7.4 | 10.8 | 0.5 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.4 | 8.5 | 49.7 |
| 1975 | 15.0 | 14.0 | 4.9 | 1.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.6 | 6.0 | 44 |
| 1974 | 12.6 | 5.8 | 10.7 | 3.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 3.1 | 6.1 | 41.5 |
| 1973 | 7.3 | 5.0 | 2.1 | 0.0 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 12.1 | 27.7 |
| 1972 | 6.0 | 22.7 | 8.0 | 2.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 3.1 | 8.8 | 52.1 |
| 1971 | 15.1 | 14.2 | 17.4 | 1.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 25.6 | 3.3 | 77.5 |
| 1970 | 8.6 | 8.8 | 19.8 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 16.6 | 55.3 |
| 1969 | 3.9 | 16.2 | 6.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 4.8 | 37.0 | 68.6 |
| 1968 | 8.1 | 2.2 | 5.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 12.0 | 6.0 | 33.4 |
| 1967 | 5.2 | 21.3 | 35.3 | 4.4 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.8 | 14.3 | 88.9 |
| 1966 | 22.2 | 17.5 | 2.7 | 0.7 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 28.2 | 71.4 |
| 1965 | 16.0 | 3.2 | 11.3 | 4.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.6 | 1.4 | 36.9 |
| 1964 | 25.8 | 25.5 | 8.9 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.3 | 64.8 |
| 1963 | 13.9 | 20.0 | 10.7 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.4 | 16.2 | 63.3 |
| 1962 | 2.5 | 17.7 | 4.9 | 2.6 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 2.2 | 7.0 | 19.2 | 56.2 |
| 1961 | 21.7 | 18.1 | 12.3 | 11.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.6 | 12.1 | 79.2 |
| 1960 | 8.1 | 17.1 | 22.2 | 3.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 0.1 | 21.3 | 72.4 |
| 1959 | 11.0 | 3.9 | 18.6 | 1.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 12.1 | 48.3 |
| 1958 | 11.3 | 37.0 | 35.9 | 1.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 3.0 | 6.6 | 95.9 |
| 1957 | 13.8 | 7.8 | 7.9 | 9.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 7.3 | 46.7 |
| 1956 | 8.2 | 13.9 | 21.9 | 15.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 6.5 | 69.4 |
| 1955 | 5.2 | 8.3 | 5.6 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 7.5 | 10.4 | 37.9 |
| 1954 | 14.7 | 5.0 | 2.8 | 1.4 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 6.9 | 3.7 | 35.9 |
| 1953 | 10.6 | 5.9 | 3.1 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 10.9 | 1.7 | 34 |
| 1952 | 5.8 | 7.7 | 11.7 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.3 | 1.2 | 7.6 | 37.5 |
| 1951 | 8.2 | 5.7 | 8.3 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 14.6 | 15.6 | 52.9 |
| 1950 | 1.9 | 10.8 | 13.4 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.3 | 14.2 | 50.6 |