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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 3.3 | 24.3 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 2.9 | 33.9 |
| 2009 | 12.8 | 2.3 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.0 | 9.4 | 25.1 |
| 2008 | 2.3 | 14.5 | 2.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 2.8 | 6.0 | 28.4 |
| 2007 | 2.9 | 13.2 | 10.6 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.6 | 8.7 | 39.8 |
| 2006 | 2.8 | 2.5 | 0.8 | 2.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.1 |
| 2005 | 12.3 | 11.7 | 10.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 13.7 | 49 |
| 2004 | 15.0 | 10.7 | 11.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 37.7 |
| 2003 | 12.3 | 20.4 | 6.5 | 3.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 13.6 | 56.5 |
| 2002 | 14.9 | 0.3 | 1.4 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.4 | 2.3 | 15.3 | 37.5 |
| 2001 | 7.8 | 4.7 | 10.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 24.9 |
| 2000 | 14.6 | 5.2 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 8.8 | 30.6 |
| 1999 | 10.2 | 2.4 | 11.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 24.2 |
| 1998 | 5.0 | 2.8 | 2.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 10.8 |
| 1997 | 8.0 | 6.9 | 3.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.4 | 11.2 | 31.3 |
| 1996 | 38.2 | 4.3 | 5.9 | 3.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 2.1 | 54.7 |
| 1995 | 0.3 | 7.5 | 1.9 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.9 | 25.0 | 44.7 |
| 1994 | 34.5 | 20.7 | 19.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.1 | 75.1 |
| 1993 | 1.5 | 19.4 | 20.8 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.0 | 3.7 | 46 |
| 1992 | 3.1 | 3.3 | 9.2 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.9 | 22.8 |
| 1991 | 5.1 | 1.3 | 5.6 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 12.3 |
| 1990 | 5.7 | 1.2 | 3.6 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.1 | 20.1 |
| 1989 | 4.3 | 0.9 | 5.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.7 | 6.4 | 18.4 |
| 1988 | 7.0 | 4.9 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 13.7 |
| 1987 | 29.3 | 5.4 | 1.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.4 | 3.6 | 47.1 |
| 1986 | 7.0 | 13.9 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.6 | 0.0 | 23.8 |
| 1985 | 9.3 | 7.7 | 0.2 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.3 | 22.6 |
| 1984 | 11.0 | 1.8 | 19.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 5.2 | 37.1 |
| 1983 | 5.1 | 11.2 | 0.6 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 22.6 |
| 1982 | 14.9 | 9.1 | 8.0 | 8.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 42.5 |
| 1981 | 7.9 | 4.7 | 5.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.5 | 27.5 |
| 1980 | 1.6 | 3.3 | 6.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.5 | 5.1 | 24.4 |
| 1979 | 8.1 | 17.0 | 0.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.9 | 28.3 |
| 1978 | 34.4 | 16.3 | 7.4 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 2.4 | 64.4 |
| 1977 | 12.6 | 8.9 | 6.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 4.2 | 10.0 | 43.6 |
| 1976 | 8.8 | 5.1 | 7.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 5.2 | 29.9 |
| 1975 | 10.7 | 12.2 | 4.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 3.2 | 30.5 |
| 1974 | 8.5 | 3.4 | 5.0 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 20.5 |
| 1973 | 1.6 | 2.8 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 14.0 | 19.4 |
| 1972 | 4.2 | 25.7 | 3.3 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.6 | 5.1 | 46 |
| 1971 | 16.3 | 12.3 | 15.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.9 | 0.4 | 53.9 |
| 1970 | 6.4 | 9.6 | 18.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 7.1 | 41.8 |
| 1969 | 2.1 | 7.6 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 28.7 | 39.7 |
| 1968 | 3.8 | 1.0 | 3.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.3 | 1.5 | 16.2 |
| 1967 | 1.7 | 13.3 | 24.5 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.6 | 10.1 | 55.1 |
| 1966 | 23.6 | 11.3 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 13.4 | 49.2 |
| 1965 | 9.3 | 1.2 | 7.1 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 19.5 |
| 1964 | 23.1 | 18.7 | 2.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 44.7 |
| 1963 | 9.3 | 12.2 | 6.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 12.3 | 41.6 |
| 1962 | 3.0 | 11.9 | 6.9 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 2.5 | 16.4 | 41.7 |
| 1961 | 19.1 | 15.7 | 7.0 | 4.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 13.5 | 61.4 |
| 1960 | 1.4 | 10.8 | 16.3 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 16.0 | 44.9 |
| 1959 | 6.6 | 1.9 | 12.3 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.1 | 30 |
| 1958 | 8.0 | 14.3 | 12.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.6 | 3.8 | 41.4 |
| 1957 | 6.4 | 7.7 | 5.8 | 4.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.4 | 29.3 |
| 1956 | 4.6 | 7.2 | 9.1 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.4 | 1.8 | 25.6 |
| 1955 | 4.0 | 7.8 | 2.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.2 | 4.5 | 23.4 |
| 1954 | 9.9 | 1.9 | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.4 | 2.3 | 16.9 |
| 1953 | 6.2 | 3.0 | 3.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 15.7 | 0.3 | 28.5 |
| 1952 | 4.9 | 5.5 | 7.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.4 | 4.7 | 23.6 |
| 1951 | 10.3 | 3.0 | 2.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 20.6 | 38.4 |
| 1950 | 1.3 | 7.3 | 11.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.0 | 13.5 | 39.4 |