TOWSON, MARYLAND

Monthly Total Precipitation (inches)

(188877)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 199609
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
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.57 q 4.02 7.71 1.63 4.80 a 0.00 z 18.16
1908 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 3.21 1.04 3.06 7.31
1909 3.12 3.75 4.58 2.44 4.56 5.94 1.17 1.09 4.24 1.29 1.10 4.65 37.93
1910 5.63 2.25 0.81 7.62 2.49 5.62 1.54 1.14 1.17 2.21 1.88 2.24 34.60
1911 2.00 1.49 1.74 2.88 0.99 3.94 4.61 13.23 a 1.99 3.41 4.20 3.94 44.42
1912 2.27 a 2.44 a 6.37 a 1.91 e 3.96 3.19 4.08 7.53 0.00 z 1.11 i 1.83 v 4.98 d 36.73
1913 2.29 1.25 a 3.39 a 5.06 2.99 0.78 3.18 3.97 2.10 4.74 3.37 2.61 35.73
1914 4.84 2.02 1.56 5.42 1.74 1.45 2.15 6.71 1.06 1.70 2.53 3.84 35.02
1915 7.40 5.52 b 1.32 1.74 3.53 5.91 3.05 10.50 1.18 3.46 2.80 2.91 49.32
1916 1.61 2.95 3.51 3.29 4.85 5.61 6.59 1.03 2.26 1.81 2.33 4.01 39.85
1917 3.33 1.69 4.30 2.41 2.71 4.03 5.00 3.16 2.31 5.36 0.70 1.94 36.94
1918 4.91 1.23 3.92 6.20 4.15 1.64 3.09 2.28 4.60 1.05 1.69 5.23 39.99
1919 3.63 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 3.63
1920 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
1921 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
1922 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
1923 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
1924 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.01 0.00 a 1.58 2.53 11.12
1925 4.90 1.27 2.09 2.59 1.37 1.50 6.67 2.57 0.95 5.97 3.55 1.62 35.05
1926 3.03 4.17 1.89 2.03 0.00 z 0.00 z 5.03 6.05 4.29 4.22 5.99 3.14 39.84
1927 1.71 a 4.62 1.68 6.03 2.15 n 3.44 q 2.63 4.52 1.11 6.79 2.59 3.30 34.98
1928 3.32 3.26 2.79 5.52 4.08 5.65 5.86 a 11.34 0.00 z 0.60 1.63 1.72 u 44.05
1929 3.62 3.71 a 3.31 5.78 a 2.15 5.95 0.81 2.44 p 3.65 5.62 2.88 0.00 z 37.48
1930 2.89 2.24 0.00 z 0.00 z 2.08 3.35 0.44 0.27 1.44 0.49 1.40 2.55 17.15
1931 2.08 1.57 5.09 3.14 4.04 3.48 t 4.30 6.94 1.08 1.60 0.94 2.22 33.00
1932 5.00 o 2.23 6.12 1.82 5.18 4.63 2.59 s 3.44 0.61 7.08 6.45 3.09 40.65
1933 3.61 2.97 4.69 7.47 4.68 2.22 5.04 13.97 3.90 2.05 0.87 2.58 54.05
1934 2.43 0.00 z 5.25 2.65 4.31 4.72 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.32 22.68
1935 5.23 2.90 2.99 4.67 4.20 5.90 0.00 z 0.00 z 6.14 2.80 5.38 c 2.62 42.83
1936 0.00 z 0.00 z 7.12 2.64 2.44 1.83 3.43 2.51 1.81 2.56 0.89 7.87 33.10
1937 6.94 3.80 1.97 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 8.63 4.97 1.40 27.71
1938 2.77 q 3.10 2.82 2.32 3.94 3.14 5.92 1.71 6.28 2.73 2.52 3.24 q 34.48
1939 4.34 5.76 4.65 4.92 1.43 4.38 2.21 3.78 2.66 4.90 0.87 2.42 42.32
1940 2.36 3.53 4.05 7.08 j 4.19 1.76 1.68 5.14 5.61 2.04 6.13 2.92 39.41
1941 3.42 1.29 2.26 3.31 2.62 4.52 3.57 2.12 0.30 1.30 1.67 3.63 30.01
1942 1.51 3.00 q 6.83 0.88 3.61 3.57 4.50 6.00 3.19 8.57 2.35 3.75 44.76
1943 3.56 a 1.83 4.20 2.87 4.88 2.28 3.22 1.52 0.84 5.48 3.96 1.54 36.18
1944 3.77 2.16 5.41 q 3.88 1.56 2.35 1.99 3.27 5.36 3.61 3.82 4.07 35.84
1945 4.19 l 2.82 2.27 3.12 4.72 3.12 10.92 5.41 4.63 0.95 4.95 6.09 49.00
1946 1.91 3.38 2.41 1.50 5.64 3.95 4.54 6.04 4.65 2.67 1.22 2.19 40.10
1947 3.60 1.37 1.55 2.11 6.45 5.06 2.23 1.01 y 2.29 0.00 z 0.00 z 0.00 z 24.66
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.58 2.10 5.34 5.95 5.25 23.22
1949 7.07 3.36 2.77 4.49 5.23 1.54 5.92 3.11 2.47 5.00 2.17 3.41 46.54
1950 2.19 3.89 5.27 1.06 6.92 4.19 2.86 4.16 7.98 3.17 2.51 4.58 48.78
1951 2.99 3.93 3.36 4.76 3.51 7.01 2.48 1.82 3.28 2.44 6.03 5.30 46.91
1952 4.40 2.09 5.20 8.85 8.11 3.84 4.82 2.59 5.07 1.42 7.94 4.14 58.47
1953 5.00 3.03 6.81 3.87 4.84 1.78 4.25 3.01 4.39 2.49 1.56 3.90 44.93
1954 1.79 1.62 3.96 3.70 2.29 0.60 2.48 4.42 1.95 3.22 2.63 3.17 31.83
1955 0.29 3.03 4.81 3.21 2.22 7.15 0.60 17.38 1.15 7.55 1.52 0.17 49.08
1956 2.26 4.03 4.73 2.66 2.08 3.85 8.72 2.60 3.18 3.63 3.51 3.45 44.70
1957 2.17 3.22 2.54 4.04 2.41 2.98 2.86 1.54 4.65 2.46 3.83 7.35 40.05
1958 4.06 3.27 5.31 a 4.94 3.80 3.19 b 8.58 4.16 3.50 2.17 2.84 1.24 47.06
1959 2.56 2.59 3.09 3.15 2.18 2.79 5.23 3.89 2.39 5.33 2.69 3.92 39.81
1960 2.45 4.53 1.66 3.62 7.66 1.62 5.88 3.29 9.40 1.16 2.70 2.18 46.15
1961 3.42 4.64 3.41 6.47 2.32 5.56 2.72 9.50 0.83 3.07 3.26 2.66 47.86
1962 1.87 4.14 4.46 4.44 2.26 3.03 3.56 0.81 2.36 2.99 6.39 2.95 39.26
1963 1.84 1.80 4.72 1.60 2.12 8.15 0.98 4.41 3.90 0.29 6.45 1.96 38.22
1964 4.00 4.11 2.76 5.26 1.48 1.58 2.48 0.82 2.78 0.99 2.73 4.91 33.90
1965 3.30 3.67 3.50 1.88 1.74 2.08 3.45 5.83 1.41 2.76 1.14 0.48 a 31.24
1966 3.70 2.67 j 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 3.70
1967 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
1968 0.00 z 0.00 z 0.00 z 0.00 z 5.85 4.38 2.59 2.18 4.90 4.26 4.10 3.66 31.92
1969 1.26 1.39 2.15 2.77 1.62 2.11 4.46 3.00 6.09 1.86 2.85 7.98 37.54
1970 0.87 3.65 4.11 4.93 1.83 4.49 5.35 1.47 0.90 3.45 5.15 3.32 39.52
1971 3.30 7.10 2.95 2.40 8.31 2.87 4.78 19.99 8.48 8.32 6.79 1.23 76.52
1972 3.44 6.31 3.44 5.97 5.09 14.37 5.14 1.94 2.52 3.71 9.99 6.70 68.62
1973 3.91 3.94 4.27 7.83 6.02 4.87 1.93 2.15 3.60 3.01 1.13 8.24 50.90
1974 3.39 1.07 5.14 3.95 5.73 3.65 1.69 4.66 7.52 1.06 2.50 6.76 47.12
1975 4.43 2.60 5.44 2.93 5.62 8.22 8.86 3.49 9.49 2.60 2.57 2.97 59.22
1976 7.38 1.57 2.05 2.68 5.17 1.82 3.75 5.10 8.56 8.32 0.79 2.04 49.23
1977 1.58 1.32 5.27 5.21 1.54 5.98 4.18 3.55 3.95 5.32 6.99 7.99 52.88
1978 8.35 2.33 5.57 1.79 7.19 4.43 6.02 5.86 2.05 2.50 3.94 4.73 54.76
1979 8.37 6.05 a 3.96 4.11 4.52 3.40 5.00 b 10.17 7.23 6.89 3.88 1.97 65.55
1980 2.77 0.37 e 3.72 g 2.98 o 4.94 2.65 3.72 0.78 1.47 3.91 3.66 0.79 25.06
1981 0.60 5.75 1.08 2.23 0.00 z 2.34 r 4.82 2.04 2.85 2.95 0.63 4.06 27.01
1982 3.51 a 3.67 2.34 4.51 4.01 4.84 1.85 2.87 3.76 2.29 3.34 1.76 38.75
1983 3.22 4.47 7.49 7.91 7.41 4.41 1.02 0.95 1.91 6.48 7.07 7.78 60.12
1984 2.47 4.56 7.80 3.86 10.45 2.15 4.95 3.12 1.53 0.00 z 2.66 0.64 44.19
1985 0.00 z 3.37 2.19 c 0.25 5.95 0.64 a 3.12 3.55 5.72 a 3.32 5.14 1.35 34.60
1986 3.91 3.54 1.66 4.22 1.04 1.58 3.38 6.81 0.94 2.12 7.60 7.21 44.01
1987 0.00 z 2.25 2.79 0.00 z 5.07 2.68 3.66 0.96 6.76 3.80 5.06 b 3.18 36.21
1988 2.27 5.32 3.45 2.43 8.24 0.22 9.11 4.26 2.92 2.21 5.46 1.20 47.09
1989 3.75 a 4.28 4.71 3.24 14.64 8.70 a 8.68 4.23 5.67 6.19 4.40 2.15 b 70.64
1990 6.05 2.13 4.81 a 7.31 8.12 5.36 7.03 9.61 2.47 6.09 2.25 o 8.05 67.03
1991 0.00 z 0.00 z 6.36 3.30 i 3.34 3.12 4.08 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 16.90
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 3.56 5.27 4.76 a 2.06 r 1.55 j 13.59
1994 2.05 i 3.50 a 5.62 c 2.84 b 5.35 a 1.11 a 4.76 9.14 4.93 0.00 z 3.30 3.12 43.67
1995 3.05 a 1.30 a 3.88 b 1.61 4.64 2.01 2.82 c 1.80 a 4.35 a 11.22 f 5.21 h 1.26 f 25.46
1996 0.35 z 0.02 z 0.48 r 0.01 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.01
Period of Record Statistics
MEAN 3.46 3.12 3.81 3.73 4.28 3.79 4.08 4.61 3.67 3.53 3.49 3.59 45.60
S.D. 1.73 1.42 1.66 1.92 2.42 2.30 2.19 3.79 2.32 2.13 2.07 2.02 10.55
SKEW 0.99 0.49 0.34 0.61 1.38 1.57 0.82 1.92 0.71 0.69 0.74 0.80 1.01
MAX 8.37 7.10 7.80 8.85 14.64 14.37 10.92 19.99 9.49 8.63 9.99 8.24 76.52
MIN 0.29 0.37 0.81 0.01 0.99 0.22 0.44 0.27 0.30 0.00 0.63 0.17 30.01
NO YRS 69 71 72 70 72 71 72 73 75 74 74 73 48