WILLIAMSPORT, MARYLAND

Monthly Total Precipitation (inches)

(189570)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201205
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1938 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.67 3.73 6.40
1939 3.07 3.66 3.21 4.10 1.98 7.52 3.48 1.09 1.54 5.54 2.29 2.14 39.62
1940 1.47 2.69 4.38 4.41 4.70 3.26 2.74 6.16 3.76 2.93 5.57 3.01 45.08
1941 2.89 0.22 2.27 2.39 3.24 4.34 3.03 4.06 2.68 0.96 3.17 3.92 33.17
1942 1.68 2.44 5.01 1.20 4.96 5.49 4.99 4.94 2.19 7.81 r 2.64 4.52 40.06
1943 3.16 1.12 3.32 3.36 4.56 j 4.33 1.93 2.06 0.28 4.21 2.00 1.19 26.96
1944 2.88 1.98 q 5.47 3.71 3.39 1.79 1.44 2.86 t 3.43 4.30 1.70 4.07 s 28.11
1945 3.46 2.05 n 2.52 4.82 3.77 2.60 3.56 4.05 7.06 o 0.73 4.75 4.20 p 30.26
1946 1.31 2.09 2.13 0.81 4.85 5.36 3.23 t 4.16 4.28 0.00 z 0.64 0.00 z 25.63
1947 3.30 1.62 1.58 1.69 n 6.02 5.03 6.31 n 7.23 0.60 1.68 3.77 0.78 31.61
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.43 2.07 3.77 a 4.92 4.96 20.15
1949 4.45 a 2.22 0.70 3.47 3.88 1.27 7.48 4.13 2.56 3.66 1.24 3.22 38.28
1950 1.30 3.52 3.77 1.67 a 5.45 2.04 3.14 3.85 7.65 3.02 4.34 3.10 42.85
1951 2.49 3.85 3.57 4.03 2.65 8.24 1.80 1.18 1.86 1.03 4.68 4.80 40.18
1952 3.52 1.79 4.23 7.28 6.48 3.25 3.04 2.83 6.73 1.18 6.17 2.40 48.90
1953 4.64 2.10 4.55 2.86 6.15 1.59 4.82 2.09 2.71 1.08 1.31 3.23 37.13
1954 1.29 1.64 3.73 1.89 2.17 3.37 2.59 6.25 2.20 4.97 1.53 3.14 34.77
1955 0.29 2.36 5.89 2.40 1.70 4.99 1.66 10.03 1.07 3.88 1.73 0.20 36.20
1956 2.15 3.88 3.31 3.03 2.11 2.01 7.00 3.68 4.51 4.62 2.46 3.44 42.20
1957 2.26 2.86 1.66 4.05 a 1.13 3.08 1.65 1.20 3.21 2.74 2.12 3.27 29.23
1958 3.91 2.52 4.26 3.48 4.64 4.42 3.08 3.93 4.67 1.62 2.24 0.78 39.55
1959 2.34 1.56 2.59 3.85 3.85 2.99 4.37 2.55 0.75 4.87 1.71 2.46 33.89
1960 2.52 3.36 3.63 2.04 8.56 4.66 2.83 5.87 3.79 1.69 1.55 1.95 42.45
1961 2.87 4.35 3.80 5.22 2.40 3.66 4.95 2.14 1.69 1.63 3.85 3.22 39.78
1962 1.82 3.89 3.95 2.59 3.13 2.01 2.12 1.18 2.20 0.00 z 3.84 2.57 29.30
1963 1.82 1.66 4.56 1.61 1.68 5.81 2.64 2.52 1.89 0.36 5.73 1.80 32.08
1964 3.97 4.07 2.92 5.40 0.92 1.69 3.38 1.54 2.57 0.79 2.04 2.52 31.81
1965 2.60 3.74 4.78 2.13 1.30 4.86 1.76 4.49 1.83 3.37 0.77 0.42 32.05
1966 3.29 3.72 1.38 4.38 1.85 0.90 0.95 1.66 7.86 2.11 2.51 2.92 33.53
1967 1.66 1.10 4.59 2.02 4.61 2.98 7.53 4.19 3.52 3.94 1.56 4.65 42.35
1968 2.34 0.11 4.07 1.42 7.10 2.72 0.03 0.00 z 0.00 z 0.00 z 3.57 1.60 22.96
1969 0.87 0.90 1.52 2.04 1.68 2.21 5.92 5.15 1.87 1.84 2.53 4.90 31.43
1970 0.62 1.83 3.83 5.44 0.00 z 9.33 8.57 3.10 2.56 3.63 4.78 3.66 47.35
1971 3.58 3.76 2.03 1.24 6.42 4.15 1.91 5.74 5.46 4.12 3.04 1.19 42.64
1972 2.74 5.35 2.03 0.00 z 7.36 9.36 3.15 4.65 1.04 0.00 z 6.31 0.00 z 41.99
1973 2.67 2.74 2.15 7.30 5.04 4.35 1.26 4.98 3.53 3.72 1.01 4.85 43.60
1974 3.29 0.85 3.68 3.72 3.30 4.81 1.61 1.53 4.21 1.39 2.31 5.18 35.88
1975 0.00 z 2.61 5.03 3.66 3.25 9.86 1.42 4.46 9.12 3.97 2.76 2.06 48.20
1976 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1977 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1978 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1979 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1980 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1981 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1982 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1983 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1984 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1985 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1987 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1988 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1989 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1990 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1991 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1992 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1993 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1994 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1995 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1996 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1997 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1998 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1999 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2000 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2001 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2002 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2003 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2004 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2005 2.87 1.19 6.03 2.08 a 2.68 0.73 a 5.17 2.34 0.03 a 6.06 a 0.00 z 2.10 31.28
2006 3.85 a 1.35 0.22 2.46 2.10 9.29 4.93 1.32 5.94 4.16 3.43 2.50 41.55
2007 1.28 a 0.69 b 1.19 t 3.77 0.00 z 3.38 1.24 b 3.85 2.32 4.03 2.14 3.18 e 25.88
2008 1.96 2.78 a 2.12 b 5.62 4.85 3.15 3.75 a 1.41 e 3.12 a 1.09 1.87 5.44 37.16
2009 2.15 a 0.41 b 1.51 a 3.11 4.67 a 4.93 3.86 2.62 1.60 3.99 1.77 a 6.06 36.68
2010 2.62 2.23 a 4.16 1.34 3.59 1.54 0.93 1.41 3.00 1.85 a 3.27 3.07 29.01
2011 1.33 3.32 5.67 8.77 5.74 2.64 a 2.39 d 3.87 a 7.39 a 4.98 4.05 b 3.53 d 53.68
2012 1.68 c 1.26 a 2.71 a 2.34 b 0.85 w 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.99
Period of Record Statistics
MEAN 2.47 2.37 3.36 3.39 3.88 4.09 3.27 3.57 3.22 2.96 2.92 3.02 38.22
S.D. 1.02 1.25 1.42 1.77 1.91 2.38 1.98 1.93 2.14 1.55 1.48 1.42 5.76
SKEW 0.02 0.16 -0.13 1.02 0.43 0.98 0.91 0.92 1.02 0.00 0.67 0.04 0.53
MAX 4.64 5.35 6.03 8.77 8.56 9.86 8.57 10.03 9.12 6.06 6.31 6.06 53.68
MIN 0.29 0.11 0.22 0.81 0.92 0.73 0.03 1.09 0.03 0.36 0.64 0.20 29.01
NO YRS 43 42 43 42 40 43 41 42 42 39 44 41 30