COLLEGE PARK, MARYLAND

Monthly Total Precipitation (inches)

(181995)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 199603
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
1894 2.06 3.86 1.27 3.15 u 3.90 1.81 2.86 3.56 1.65 3.41 1.60 3.86 29.84
1895 3.79 0.70 2.73 5.84 3.16 5.50 2.27 2.57 1.81 1.89 1.96 2.32 34.54
1896 1.81 5.51 4.61 1.29 2.54 2.00 3.19 s 1.91 4.15 0.44 2.50 0.28 27.04
1897 1.76 v 5.51 s 2.91 s 3.35 7.45 3.49 5.29 3.02 1.78 4.00 3.98 3.30 35.66
1898 3.87 1.36 2.23 2.24 3.38 0.35 2.11 6.08 0.56 3.33 4.18 5.41 w 29.69
1899 3.57 8.00 5.90 1.71 4.22 2.50 5.90 5.51 t 5.45 1.35 2.95 1.85 x 41.55
1900 1.71 5.69 1.57 1.82 3.39 7.15 2.38 v 2.09 5.59 1.62 2.42 2.40 35.45
1901 1.75 0.90 3.53 6.40 4.17 6.72 5.74 4.93 3.69 1.47 2.78 6.70 48.78
1902 4.32 v 4.45 3.54 2.25 2.70 4.10 6.21 3.48 7.39 5.78 3.95 5.21 49.06
1903 3.75 4.34 5.54 4.37 3.10 5.27 6.55 3.51 0.61 4.04 0.80 z 1.65 z 41.08
1904 1.85 y 0.82 x 2.32 2.20 w 1.79 6.28 4.07 3.02 1.76 z 2.27 2.23 z 1.63 z 19.75
1905 2.81 0.43 w 2.97 2.75 3.14 3.77 6.97 7.86 2.25 2.01 0.08 w 2.74 w 34.53
1906 3.21 2.11 4.35 m 3.44 1.73 7.56 6.81 9.34 0.50 4.04 1.55 3.38 43.67
1907 2.19 1.76 2.20 2.25 3.44 5.58 2.84 2.84 8.06 2.02 4.64 3.73 41.55
1908 2.88 5.08 2.94 1.96 4.27 1.41 1.42 5.32 5.14 1.76 0.88 2.83 35.89
1909 1.98 3.03 3.79 2.56 2.91 4.75 1.89 2.10 0.00 z 0.00 z 0.78 2.90 26.69
1910 0.00 z 1.23 1.17 6.31 3.94 4.42 1.62 1.59 0.92 4.23 2.34 1.86 29.63
1911 3.54 1.93 2.24 3.06 0.73 3.09 0.90 7.38 1.95 3.45 4.59 3.92 36.78
1912 2.77 2.41 6.92 3.28 6.92 6.48 5.13 1.15 4.53 0.75 a 1.32 3.80 45.46
1913 2.72 1.60 4.49 5.95 4.82 1.92 1.44 5.92 2.23 3.11 1.78 2.31 38.29
1914 3.65 1.50 w 1.15 2.30 1.54 3.06 1.74 7.48 0.76 1.72 2.14 4.27 29.81
1915 4.81 b 3.83 1.03 0.71 3.14 v 5.76 3.36 3.42 q 1.72 1.90 s 0.98 r 1.40 x 21.22
1916 0.88 w 1.70 z 0.00 z 0.00 z 0.00 z 3.38 w 5.53 3.21 2.04 1.84 y 2.33 4.29 17.40
1917 2.99 1.85 6.02 1.93 3.38 s 4.47 7.74 2.93 1.88 5.62 0.76 1.29 37.48
1918 4.18 0.81 t 6.01 6.27 3.88 2.36 3.44 1.61 3.52 0.93 1.48 4.60 38.28
1919 3.93 2.46 4.07 3.50 5.82 2.48 7.32 3.69 2.68 2.75 2.58 4.36 p 41.28
1920 2.48 3.43 3.29 5.00 1.90 5.10 6.06 4.65 4.38 0.28 3.15 4.32 44.04
1921 2.17 2.57 2.64 2.94 6.29 2.21 3.68 1.60 1.70 1.15 5.27 1.90 34.12
1922 4.91 3.23 4.43 2.01 4.45 3.50 7.51 2.77 4.24 1.31 0.66 3.77 42.79
1923 3.92 2.30 4.31 3.56 1.87 2.70 4.29 2.46 3.39 2.15 2.52 3.81 37.28
1924 3.73 3.56 5.78 5.56 6.95 4.14 1.50 4.82 7.88 0.42 1.47 2.76 48.57
1925 4.30 r 1.09 1.95 2.71 1.85 t 1.61 5.05 2.73 2.03 5.33 3.43 1.52 27.45
1926 3.30 4.36 2.18 s 1.73 2.47 2.14 4.01 5.17 5.12 4.25 5.36 3.11 41.02
1927 1.47 2.94 1.90 6.05 2.55 3.47 1.88 4.21 1.85 5.80 2.64 3.31 38.07
1928 2.99 2.70 2.76 4.76 3.58 2.73 1.66 12.60 3.63 1.18 1.97 1.34 41.90
1929 2.84 3.25 2.96 6.48 2.92 7.09 1.06 1.65 2.33 4.43 1.93 2.70 39.64
1930 3.24 1.80 2.03 3.33 1.95 2.27 0.71 0.71 0.91 0.19 0.77 1.99 19.90
1931 1.49 1.52 3.92 2.55 4.44 4.01 3.33 7.87 0.94 1.17 1.55 2.19 34.98
1932 5.33 2.57 6.18 3.05 r 5.62 p 3.82 2.52 1.95 t 4.32 6.13 6.18 3.35 o 37.05
1933 3.09 2.88 4.16 5.94 5.92 4.01 p 6.62 s 9.60 2.78 2.23 1.00 2.70 40.30
1934 2.37 3.07 5.18 j 2.27 4.61 1.97 1.46 6.39 11.77 0.65 3.51 3.02 41.09
1935 5.75 2.75 3.41 4.59 4.13 3.04 2.63 3.31 8.49 2.31 4.74 1.94 k 45.15
1936 5.67 3.78 4.87 2.27 4.71 1.99 4.03 5.03 1.36 3.01 0.59 r 5.77 42.49
1937 7.67 3.38 1.75 7.03 l 3.75 3.82 4.83 7.59 1.59 8.70 4.32 0.87 48.27
1938 2.70 3.28 2.32 1.59 3.80 1.77 4.63 4.34 5.44 1.51 1.58 2.30 35.26
1939 3.49 5.61 3.09 4.75 0.82 4.45 2.04 2.31 4.59 5.03 1.03 2.22 39.43
1940 2.04 3.03 n 3.57 5.82 4.01 0.31 3.33 3.51 3.65 1.53 5.47 2.55 q 33.24
1941 3.13 0.81 2.07 2.70 u 1.48 6.39 6.82 2.75 q 0.24 1.47 1.01 3.30 26.72
1942 2.16 1.96 7.65 0.62 4.07 5.45 5.16 9.15 2.63 9.45 2.16 4.17 54.63
1943 3.00 1.96 3.45 o 3.18 4.86 2.51 1.05 1.30 3.36 4.56 4.02 1.48 31.28
1944 3.03 2.40 5.26 3.48 1.46 3.27 2.02 5.03 5.98 3.21 3.59 3.31 42.04
1945 3.16 3.05 1.03 2.90 3.83 4.38 14.80 3.77 5.47 1.14 v 4.30 6.70 53.39
1946 1.68 3.20 2.04 1.80 7.20 2.54 2.54 3.69 3.89 2.81 1.30 2.05 34.74
1947 3.76 1.27 1.38 2.31 7.70 6.67 4.41 4.71 3.90 1.72 5.84 1.50 45.17
1948 4.81 1.60 5.11 2.85 8.04 6.56 3.44 8.81 2.87 3.41 6.01 5.27 58.78
1949 5.33 3.52 3.27 2.37 5.79 3.56 2.79 b 4.96 3.25 2.90 0.81 2.13 40.68
1950 1.83 2.95 3.02 1.25 5.32 3.83 4.56 5.75 8.85 3.52 3.05 2.83 46.76
1951 2.36 2.78 2.39 3.36 2.60 10.57 1.56 3.16 2.55 1.63 5.41 4.46 42.83
1952 4.28 1.99 3.94 6.51 a 5.80 3.49 4.32 5.72 5.77 0.72 0.00 z 0.00 z 42.54
1953 0.00 z 2.45 7.09 0.00 z 0.00 z 2.35 0.00 z 0.00 z 3.85 0.00 z 0.00 z 0.00 z 15.74
1954 0.00 z 0.92 e 3.66 4.10 2.77 2.49 2.33 4.25 0.72 3.43 2.31 2.90 29.88
1955 0.29 3.14 3.73 2.68 2.18 5.72 2.02 a 14.73 0.78 5.79 1.49 0.17 a 42.72
1956 2.19 3.13 4.33 a 1.99 1.85 2.51 5.56 1.53 3.19 3.20 2.89 3.11 35.48
1957 2.68 a 2.53 2.79 2.99 1.73 4.82 1.90 2.90 3.18 a 2.58 3.09 5.57 36.76
1958 2.67 3.52 6.39 5.08 1.98 4.12 10.00 6.69 1.58 2.18 2.36 1.38 47.95
1959 2.31 2.08 2.47 4.33 3.12 3.03 4.48 4.57 0.74 3.62 2.65 3.37 36.77
1960 2.84 3.86 2.44 3.24 5.49 0.92 5.29 5.82 6.39 1.61 1.42 2.82 42.14
1961 2.53 4.93 3.65 4.50 3.06 2.87 3.25 7.38 0.51 3.25 2.10 3.39 41.42
1962 1.90 4.04 3.95 3.71 2.72 3.27 1.79 0.22 2.99 2.78 5.86 3.26 36.49
1963 1.68 2.05 5.33 1.23 1.66 5.31 1.35 8.23 3.66 0.00 7.18 2.04 39.72
1964 4.41 3.40 2.36 4.65 1.59 2.53 1.16 2.33 5.07 1.53 1.85 3.81 34.69
1965 2.98 2.26 5.03 1.81 2.19 1.31 3.57 4.57 2.33 2.13 0.81 0.64 29.63
1966 3.80 3.52 1.45 4.48 3.97 1.78 0.82 1.05 8.59 4.62 1.77 3.35 39.20
1967 1.24 1.86 3.93 1.26 4.53 1.33 5.64 11.00 0.88 1.94 2.37 5.77 41.75
1968 2.31 0.54 4.39 1.59 5.13 6.35 2.28 3.83 4.77 2.89 4.23 2.26 40.57
1969 1.61 2.01 1.42 1.93 2.45 5.66 6.34 8.12 2.60 1.29 2.55 7.10 43.08
1970 1.09 2.72 2.89 5.17 4.62 3.86 6.73 1.38 1.05 3.16 5.93 1.49 c 40.09
1971 3.28 6.50 2.23 2.46 7.54 1.40 4.91 8.74 4.21 7.39 3.55 2.07 54.28
1972 2.89 6.83 2.86 4.64 5.26 11.78 2.78 1.74 1.44 3.94 6.57 5.31 56.04
1973 2.78 3.02 3.68 7.21 4.59 5.34 3.13 3.32 3.13 3.12 0.98 5.80 46.10
1974 3.58 1.10 4.41 2.55 3.75 4.67 1.48 6.62 4.57 1.01 1.45 4.64 39.83
1975 3.04 2.31 5.24 2.14 3.52 a 2.81 10.81 5.60 13.82 2.64 2.04 4.13 58.10
1976 3.98 2.13 1.79 2.40 6.05 2.11 4.14 4.01 6.49 7.97 0.83 2.13 44.03
1977 1.53 0.57 3.22 2.75 2.03 3.05 4.56 2.29 0.41 5.35 3.94 6.58 36.28
1978 7.98 0.53 4.20 1.14 7.70 2.45 4.95 8.50 0.69 0.90 2.76 4.12 45.92
1979 8.34 5.99 2.59 2.74 3.46 4.36 5.04 6.59 9.47 6.51 3.11 1.02 59.22
1980 2.72 1.12 5.52 3.98 4.35 3.31 6.60 2.04 1.49 2.89 2.92 0.79 37.73
1981 0.62 3.56 1.20 2.86 5.21 5.75 4.46 3.79 2.36 3.00 0.51 2.49 35.81
1982 3.16 3.80 2.56 4.34 2.30 5.97 4.35 1.52 2.38 2.02 3.12 1.91 37.43
1983 1.45 2.77 5.63 7.46 4.78 7.34 0.76 4.51 2.28 5.54 5.19 6.70 54.41
1984 1.52 3.67 5.41 3.23 6.68 1.13 4.93 2.18 1.93 3.06 4.14 1.47 39.35
1985 2.40 3.68 1.94 0.89 4.78 2.01 4.50 2.69 5.75 2.57 4.84 0.94 36.99
1986 2.69 3.77 a 0.75 2.95 1.06 1.98 4.03 6.02 0.67 2.04 5.87 5.19 37.02
1987 5.15 1.46 1.66 3.49 3.53 4.22 1.88 1.58 7.33 2.88 4.87 a 2.37 40.42
1988 3.00 2.83 2.72 1.96 6.70 0.58 3.41 5.60 1.97 1.80 5.06 1.18 36.81
1989 2.99 3.24 4.80 a 3.23 9.08 4.77 5.24 1.06 5.29 5.21 2.75 0.98 48.64
1990 4.14 1.32 2.95 5.09 5.73 1.75 5.25 6.83 0.98 3.51 1.98 4.38 43.91
1991 3.20 0.91 5.11 1.27 2.37 3.79 7.35 3.40 2.84 3.07 1.43 5.25 39.99
1992 1.90 2.47 4.19 2.88 4.45 1.14 6.19 c 3.42 6.08 0.00 z 4.08 3.84 40.64
1993 3.13 2.57 7.90 a 5.20 3.57 2.06 1.06 a 5.87 5.62 2.90 a 5.50 5.31 b 50.69
1994 4.42 a 3.15 a 7.94 1.80 b 2.55 4.07 6.15 4.72 3.08 1.58 2.28 b 1.94 43.68
1995 3.56 o 1.54 2.48 1.44 5.91 3.28 3.16 1.51 0.00 z 7.57 d 5.62 m 2.01 n 26.89
1996 0.00 z 1.68 d 2.39 b 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 4.07
Period of Record Statistics
MEAN 3.11 2.82 3.54 3.31 3.96 3.75 4.03 4.52 3.53 3.03 2.98 3.18 41.73
S.D. 1.42 1.43 1.68 1.62 1.83 2.04 2.38 2.73 2.57 1.93 1.66 1.63 7.10
SKEW 1.30 0.96 0.61 0.63 0.53 1.06 1.27 1.05 1.32 1.06 0.54 0.45 0.43
MAX 8.34 8.00 7.94 7.46 9.08 11.78 14.80 14.73 13.82 9.45 7.18 7.10 59.22
MIN 0.29 0.53 0.75 0.62 0.73 0.31 0.71 0.22 0.24 0.00 0.51 0.17 19.90
NO YRS 93 96 97 95 96 100 98 97 99 96 94 89 66