GLENN DALE BELL STN, MARYLAND

Monthly Total Precipitation (inches)

(183675)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 200705
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
1921 2.56 2.88 r 2.15 2.63 s 7.95 1.94 8.08 1.59 2.22 0.94 a 6.59 2.13 36.15
1922 4.91 3.26 5.44 1.84 3.13 6.67 7.62 4.91 2.60 1.73 0.71 3.82 46.64
1923 3.71 2.85 4.70 6.82 2.56 4.23 4.50 2.68 4.24 2.62 2.47 3.49 44.87
1924 3.64 3.61 3.77 v 5.87 6.25 4.16 2.35 4.67 7.62 0.43 1.55 y 2.13 40.73
1925 5.06 q 1.07 1.89 2.46 2.10 2.54 4.42 2.18 3.49 6.27 3.63 1.80 31.85
1926 2.57 4.08 2.04 1.02 2.12 2.02 3.95 5.42 4.83 2.84 5.32 3.28 39.49
1927 1.37 0.00 z 1.65 6.01 2.19 3.85 1.90 5.37 0.68 6.89 2.72 3.34 35.97
1928 2.70 2.67 2.72 5.11 2.94 2.46 2.07 11.54 4.05 0.71 1.65 0.97 39.59
1929 2.78 3.26 2.62 6.45 3.95 4.36 0.72 1.80 2.90 4.60 2.08 1.89 a 37.41
1930 3.14 1.70 2.29 2.96 1.32 1.69 1.17 0.33 0.35 0.38 0.94 1.71 17.98
1931 1.95 1.48 4.17 2.56 4.55 4.08 3.60 9.36 2.38 1.00 0.88 2.13 38.14
1932 5.87 2.67 6.19 2.54 4.72 4.37 3.23 1.92 4.10 7.20 6.35 3.46 52.62
1933 3.45 2.54 3.29 5.68 5.26 4.44 7.21 12.22 3.83 2.03 1.01 2.56 53.52
1934 2.19 3.01 4.83 2.38 4.24 2.98 1.87 3.68 12.57 0.70 3.13 2.26 43.84
1935 5.43 2.99 3.29 5.37 4.05 3.07 2.93 2.99 8.87 2.30 5.07 2.10 48.46
1936 5.90 3.89 4.35 a 2.02 4.14 1.57 4.34 4.47 1.29 2.46 0.80 5.12 40.35
1937 7.76 3.59 1.54 9.09 2.84 4.45 3.08 8.15 1.17 8.29 4.80 0.95 55.71
1938 2.64 3.27 2.14 1.44 3.77 2.41 4.31 1.89 6.94 1.93 2.57 2.56 35.87
1939 3.46 6.11 4.25 5.02 0.51 6.13 5.71 3.11 4.25 5.77 1.37 2.01 47.70
1940 2.53 2.87 3.95 5.55 5.88 0.41 4.57 4.71 3.17 2.26 6.10 2.17 44.17
1941 3.15 0.97 2.32 3.09 1.42 6.55 8.16 2.93 0.21 1.18 1.08 3.33 34.39
1942 2.69 2.23 7.04 0.48 6.43 3.96 5.70 8.51 2.76 9.85 2.07 4.36 56.08
1943 2.88 2.36 4.37 2.70 4.03 3.41 2.33 0.74 2.61 5.25 2.83 1.53 35.04
1944 3.58 2.52 5.87 3.32 1.19 2.19 3.25 6.65 5.54 3.20 3.94 3.26 44.51
1945 3.21 3.31 1.14 3.51 4.30 6.27 12.26 1.87 4.84 1.24 4.54 6.00 52.49
1946 1.84 2.94 1.66 1.87 6.97 1.82 3.41 3.40 4.59 3.20 1.24 1.94 34.88
1947 3.83 1.68 1.42 2.55 6.02 6.60 4.18 3.32 3.52 1.07 5.73 1.60 41.52
1948 5.59 2.05 4.04 3.05 6.73 7.06 3.15 10.01 2.85 4.32 5.74 5.85 60.44
1949 5.50 3.47 3.31 2.40 7.96 3.04 2.76 2.41 3.71 3.28 1.02 1.94 40.80
1950 1.91 2.88 4.00 1.97 4.36 3.75 a 7.43 4.75 6.67 3.24 1.31 3.19 45.46
1951 2.02 2.98 3.03 4.00 2.47 8.22 a 4.00 2.74 1.67 2.23 6.54 4.84 44.74
1952 4.09 a 2.06 4.57 6.76 5.35 3.41 2.80 a 4.15 6.44 0.75 8.16 3.18 51.72
1953 4.30 2.46 7.82 4.17 7.24 3.71 4.05 3.83 4.97 3.07 1.77 3.13 50.52
1954 2.44 1.06 4.15 3.57 4.06 1.50 1.69 3.74 0.78 3.56 2.35 2.71 31.61
1955 0.27 3.12 3.73 2.49 3.24 4.40 1.43 15.96 0.93 5.56 1.45 0.22 42.80
1956 2.39 3.19 4.22 2.21 2.03 3.44 8.34 1.98 2.78 3.65 3.55 3.49 41.27
1957 3.11 a 2.61 2.21 a 2.78 1.34 6.01 1.77 2.63 a 3.11 2.72 3.22 5.54 37.05
1958 2.86 4.67 6.02 4.74 3.31 3.77 8.73 7.12 2.56 3.22 2.65 1.43 51.08
1959 2.30 1.85 2.72 4.56 2.34 4.66 8.42 4.19 1.64 4.03 2.73 3.64 43.08
1960 2.74 3.80 2.61 3.42 6.18 0.72 5.94 8.10 5.94 2.37 1.61 2.48 45.91
1961 2.45 4.52 3.10 4.67 3.65 3.98 2.81 3.72 1.03 3.38 1.96 3.55 38.82
1962 1.67 3.76 3.41 4.62 2.27 2.34 1.95 0.59 3.12 2.25 6.29 3.04 35.31
1963 1.65 1.97 5.86 1.24 1.49 8.25 0.74 7.16 3.72 0.00 7.51 1.95 41.54
1964 4.40 3.28 2.57 4.31 1.20 1.96 2.42 2.84 5.30 1.92 2.29 3.47 35.96
1965 2.59 2.54 4.56 1.92 2.25 1.38 5.24 5.73 2.05 2.00 0.64 0.53 31.43
1966 3.51 3.17 1.42 4.18 4.47 2.25 0.73 1.36 8.35 4.97 1.95 3.13 39.49
1967 1.03 1.71 4.31 1.47 4.30 1.62 4.12 9.88 0.19 2.08 2.56 5.87 39.14
1968 2.64 0.46 4.43 1.34 5.69 6.46 3.92 4.39 4.38 3.71 3.89 2.21 43.52
1969 1.61 2.08 1.40 2.42 2.07 6.16 6.95 8.13 1.65 1.24 2.12 7.20 43.03
1970 1.28 2.87 3.28 5.79 4.47 2.27 6.23 2.34 1.78 2.59 5.46 2.90 41.26
1971 2.49 5.82 1.92 3.00 6.25 1.92 6.84 12.12 4.62 7.08 4.35 2.22 58.63
1972 3.30 5.87 2.46 5.21 5.01 9.13 3.62 1.86 2.09 3.78 7.18 5.40 54.91
1973 2.07 3.00 3.32 6.18 4.02 4.40 4.51 2.00 2.82 3.64 1.67 5.86 43.49
1974 3.85 1.25 4.66 2.74 3.61 5.11 0.71 4.75 5.65 1.43 1.66 5.08 40.50
1975 3.31 2.11 5.92 2.64 4.41 2.98 7.36 4.89 11.00 3.05 2.39 3.15 53.21
1976 5.92 2.13 1.95 1.83 5.09 1.66 4.98 3.02 5.25 7.18 0.87 2.29 42.17
1977 1.55 0.71 2.62 2.77 3.01 2.82 2.91 4.33 2.53 6.24 5.42 6.36 41.27
1978 7.83 0.61 4.38 1.77 8.23 2.67 4.97 4.22 2.04 1.58 2.68 4.74 45.72
1979 8.39 5.72 2.53 3.64 3.35 5.43 a 5.65 6.98 8.50 6.12 2.80 1.10 60.21
1980 2.91 1.04 4.86 5.02 5.57 2.62 5.54 2.15 2.90 3.69 2.48 1.02 39.80
1981 0.57 3.78 1.66 3.38 4.27 4.20 5.09 5.35 2.81 3.41 0.35 2.63 37.50
1982 2.54 3.35 2.80 4.38 4.08 5.48 2.73 1.41 3.08 2.77 3.33 2.09 38.04
1983 1.82 3.47 6.07 7.64 5.77 11.27 1.61 3.30 2.22 5.51 4.92 6.67 60.27
1984 1.89 3.83 5.88 3.51 6.41 2.01 6.40 2.48 2.20 3.15 3.63 1.43 42.82
1985 2.36 3.33 1.90 0.31 5.12 2.39 3.76 3.48 5.63 3.54 4.80 0.95 37.57
1986 2.21 3.66 0.94 2.70 0.97 1.89 3.55 7.73 1.23 2.12 6.28 4.12 37.40
1987 3.95 b 0.98 a 1.92 3.07 3.29 3.58 0.76 2.00 5.20 2.95 4.77 a 2.86 35.33
1988 3.17 3.11 2.81 2.11 6.32 0.55 7.18 4.86 0.00 z 1.94 6.14 0.00 z 38.19
1989 2.70 3.31 4.12 4.13 10.28 6.19 5.47 0.70 4.18 5.32 2.38 1.01 49.79
1990 4.76 0.64 3.55 4.79 6.55 2.95 6.01 5.91 1.09 4.38 2.09 4.47 47.19
1991 3.45 1.02 5.92 1.86 2.07 1.89 2.91 2.71 2.56 3.40 1.28 5.28 34.35
1992 1.88 2.57 5.02 a 2.75 3.36 1.36 7.13 4.54 3.95 2.08 4.38 4.71 43.73
1993 3.24 2.22 7.88 c 3.89 4.01 1.96 a 0.66 4.74 3.66 3.35 5.02 4.39 45.02
1994 4.73 3.82 8.91 a 2.84 3.02 2.61 8.48 7.62 3.10 1.35 2.39 1.67 50.54
1995 3.90 2.07 1.93 2.08 6.28 2.48 2.65 1.21 2.89 7.02 3.52 2.31 a 38.34
1996 2.25 d 1.52 3.97 4.25 5.98 8.69 4.73 3.54 6.67 4.46 3.48 6.46 56.00
1997 2.17 3.49 3.31 l 2.73 5.23 y 2.66 2.03 a 4.39 1.46 4.36 b 6.46 h 1.61 h 23.29
1998 5.17 n 6.02 d 5.38 d 4.05 5.52 2.78 0.59 1.28 2.22 0.70 1.54 1.81 b 31.89
1999 5.19 d 2.49 a 3.97 b 2.35 0.80 2.50 0.67 5.97 11.02 e 2.54 2.59 a 2.69 42.78
2000 3.94 1.97 3.99 b 4.54 c 2.87 a 5.53 6.02 3.25 5.81 b 0.12 1.86 2.81 42.71
2001 2.74 2.29 a 4.35 a 1.67 4.96 6.09 5.43 3.73 2.27 0.88 0.81 1.35 36.57
2002 2.00 h 0.57 3.32 4.23 3.33 2.06 2.55 3.14 3.88 a 5.71 4.38 a 5.09 38.26
2003 2.72 b 7.39 d 3.81 2.57 b 7.59 10.80 b 5.92 3.24 a 8.78 4.07 5.35 4.89 b 67.13
2004 1.65 e 2.38 2.29 4.21 2.95 6.48 a 5.32 3.32 5.39 1.36 4.88 2.71 42.94
2005 3.55 a 1.43 4.82 2.93 d 5.40 3.41 3.64 3.63 0.25 8.81 2.14 b 3.51 43.52
2006 3.54 2.12 0.08 2.56 b 2.41 9.31 4.48 0.95 8.55 5.43 6.63 1.93 a 47.99
2007 2.73 a 3.47 3.06 a 4.87 2.16 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 16.29
Period of Record Statistics
MEAN 3.18 2.80 3.64 3.50 4.16 3.94 4.25 4.41 3.87 3.34 3.30 3.12 43.83
S.D. 1.52 1.35 1.69 1.65 1.97 2.31 2.36 2.93 2.57 2.11 1.94 1.60 8.00
SKEW 1.23 0.80 0.63 0.74 0.42 1.08 0.57 1.43 1.14 0.82 0.55 0.60 0.30
MAX 8.39 7.39 8.91 9.09 10.28 11.27 12.26 15.96 12.57 9.85 8.16 7.20 67.13
MIN 0.27 0.46 0.08 0.31 0.51 0.41 0.59 0.33 0.19 0.00 0.35 0.22 17.98
NO YRS 84 85 85 86 86 86 86 86 85 86 84 84 78