CHESTERTOWN, MARYLAND

Monthly Total Precipitation (inches)

(181750)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201105
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
1893 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 2.40 2.60 5.00
1894 2.24 w 2.55 0.00 z 0.00 z 6.67 1.40 1.97 3.54 3.83 3.28 0.00 z 2.98 26.22
1895 4.20 1.35 2.17 6.09 3.42 7.86 3.45 0.00 z 0.00 z 2.75 2.22 2.40 35.91
1896 0.00 z 6.12 4.91 1.10 3.98 3.73 4.87 2.11 5.37 2.94 1.77 0.86 37.76
1897 2.40 x 4.22 q 2.97 n 3.58 4.71 5.35 8.43 4.95 1.28 3.39 5.58 0.00 z 37.27
1898 0.00 z 1.97 2.69 2.77 5.78 1.17 3.05 7.62 w 3.11 3.74 5.10 5.98 35.36
1899 3.66 6.39 5.59 1.25 2.81 1.83 4.53 4.80 5.67 2.60 0.71 1.28 41.12
1900 0.00 z 0.00 z 0.00 z 0.00 z 2.63 5.90 2.37 0.00 z 7.48 1.82 2.13 2.50 24.83
1901 2.74 1.35 2.67 5.70 3.95 0.00 z 8.48 6.25 2.70 1.06 2.60 7.44 44.94
1902 3.88 5.76 3.50 3.91 2.21 5.48 4.07 1.48 6.83 6.32 3.88 6.83 54.15
1903 3.78 5.55 4.71 3.28 1.86 3.12 5.55 4.96 0.98 4.44 1.17 3.47 42.87
1904 3.34 2.24 3.76 1.99 3.02 5.63 5.38 2.37 3.57 2.27 2.12 3.58 39.27
1905 4.44 3.26 3.01 3.36 2.15 5.27 q 10.00 4.01 2.59 1.78 1.62 3.53 39.75
1906 2.29 2.95 6.11 2.66 2.93 3.78 5.14 8.81 1.46 3.49 2.41 0.00 z 42.03
1907 2.71 1.80 2.77 4.17 6.72 4.76 4.67 t 3.73 6.77 3.90 7.31 4.83 v 44.64
1908 3.61 5.42 2.31 2.43 4.75 1.27 2.07 6.17 2.67 3.19 1.19 4.26 39.34
1909 3.20 3.95 3.63 2.12 3.25 5.23 2.05 1.00 3.11 1.65 2.32 3.73 35.24
1910 4.38 1.58 1.90 3.75 2.25 7.89 3.56 4.21 0.94 3.66 3.08 1.78 38.98
1911 3.39 1.80 2.35 3.51 0.00 4.72 3.71 9.87 q 2.03 2.63 5.23 4.34 33.71
1912 3.72 2.33 7.54 2.37 4.24 2.72 4.92 1.87 5.20 2.63 2.36 3.50 s 39.90
1913 4.49 1.16 v 6.04 6.88 3.88 2.63 1.47 4.06 1.90 5.83 1.90 2.10 41.18
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.51 c 3.93 3.47 2.88 0.75 b 4.65 18.19
1937 10.14 3.86 2.59 5.48 4.74 7.53 4.32 11.98 1.70 6.22 2.42 1.29 62.27
1938 2.46 2.71 2.82 1.69 4.28 4.32 6.01 2.65 7.40 2.32 a 2.94 3.60 d 43.20
1939 2.14 c 6.47 4.54 d 4.78 d 1.17 4.91 2.62 a 5.01 2.64 b 6.92 1.66 2.16 45.02
1940 2.36 2.83 4.36 7.34 a 4.41 c 1.41 5.24 3.48 1.69 a 2.40 4.64 2.61 42.77
1941 3.59 1.86 2.88 2.68 2.06 4.72 4.10 2.65 0.02 2.31 1.61 3.88 32.36
1942 2.85 2.23 5.82 0.60 4.00 3.11 6.08 5.28 1.50 5.90 2.22 3.74 43.33
1943 2.48 2.19 3.58 2.84 4.23 3.59 1.82 1.13 2.62 4.38 3.05 1.48 33.39
1944 3.92 2.04 6.10 5.53 2.87 2.31 4.21 3.14 3.61 2.48 4.49 2.83 43.53
1945 3.88 3.47 1.01 3.61 5.48 5.28 11.90 2.27 4.18 1.47 3.31 5.79 51.65
1946 1.66 2.35 e 2.77 2.47 5.32 2.36 2.90 4.51 3.68 2.99 1.62 2.18 34.81
1947 4.37 1.71 1.36 3.70 5.46 4.84 3.75 2.12 4.14 1.68 6.35 1.87 41.35
1948 5.96 3.00 2.94 3.23 7.07 6.29 3.07 6.05 1.44 2.19 6.03 6.80 54.07
1949 5.96 4.33 a 3.47 2.24 5.95 0.71 3.42 3.83 4.64 2.21 a 1.86 2.81 41.43
1950 2.36 3.25 5.22 1.77 5.59 2.40 4.18 1.16 8.01 2.47 4.66 2.78 43.85
1951 2.82 3.20 2.69 4.19 2.27 a 6.35 4.59 0.53 1.04 3.30 6.54 5.91 43.43
1952 5.21 2.11 5.21 6.69 4.41 3.43 2.52 7.94 3.42 1.25 5.20 3.83 51.22
1953 5.23 2.75 5.83 3.80 4.90 2.22 6.84 3.09 1.92 4.46 2.69 3.61 47.34
1954 4.05 1.02 4.86 2.83 4.66 3.43 2.94 4.20 2.43 3.18 3.78 2.42 a 39.80
1955 0.42 3.26 3.12 2.90 1.48 6.59 2.37 11.87 2.52 3.23 1.54 0.40 39.70
1956 2.34 3.33 5.03 2.50 4.37 4.37 5.89 2.47 2.81 3.73 5.66 3.82 46.32
1957 2.53 3.37 2.90 1.81 2.19 2.92 1.43 4.46 3.97 3.34 4.09 6.65 39.66
1958 4.33 4.57 7.17 4.36 5.81 3.11 7.85 7.61 3.25 2.44 3.36 1.78 55.64
1959 2.08 2.45 3.12 3.05 2.39 4.25 5.37 3.95 2.80 4.68 3.53 4.56 42.23
1960 2.23 3.44 2.30 3.56 4.89 1.37 7.79 5.99 8.31 2.27 1.73 3.71 47.59
1961 3.15 4.69 5.49 3.25 3.09 6.49 2.77 2.83 1.77 2.42 2.33 3.05 41.33
1962 2.79 4.02 4.56 3.64 1.79 3.86 3.88 1.24 4.17 1.23 5.89 3.07 40.14
1963 2.20 2.29 4.91 0.90 2.05 5.35 0.80 3.90 4.80 0.00 6.49 2.72 36.41
1964 4.52 3.58 3.16 5.39 0.61 1.82 3.53 2.43 4.77 1.49 1.60 4.47 37.37
1965 3.27 2.15 4.13 1.74 2.64 2.20 3.95 3.63 2.15 1.44 1.23 0.96 29.49
1966 3.70 4.20 1.16 3.65 2.69 2.13 1.72 3.59 6.92 5.58 2.13 4.33 41.80
1967 1.03 2.63 3.93 2.57 3.55 4.80 4.27 9.50 1.02 1.92 2.36 5.81 43.39
1968 2.09 1.20 5.24 1.61 5.98 4.94 1.57 3.60 3.94 3.38 3.68 2.36 39.59
1969 1.63 2.15 2.03 2.63 4.87 2.63 6.87 7.60 2.44 1.77 1.72 7.65 43.99
1970 1.59 2.32 4.09 4.74 3.02 6.15 3.98 2.60 1.06 2.27 3.96 3.39 39.17
1971 2.76 6.30 2.08 2.29 5.56 1.49 3.14 11.21 5.38 9.23 4.93 2.27 56.64
1972 3.10 4.55 3.10 4.69 3.32 12.02 6.03 1.03 2.24 3.64 8.37 5.67 57.76
1973 3.10 4.41 4.78 5.49 4.04 8.46 1.08 2.97 4.51 4.88 1.41 7.28 52.41
1974 3.15 1.62 5.51 3.39 5.70 4.29 0.93 5.78 6.92 2.03 1.04 5.47 45.83
1975 4.23 3.03 5.23 2.94 5.01 5.20 8.57 2.79 7.46 2.94 2.63 4.03 54.06
1976 5.12 1.62 2.11 1.09 3.66 1.82 3.23 2.31 3.30 5.94 0.21 2.97 33.38
1977 1.81 0.76 2.87 2.96 1.26 4.62 2.45 5.27 1.21 3.87 7.07 6.12 40.27
1978 7.12 1.33 5.27 1.51 5.61 1.53 5.66 5.52 1.01 1.18 2.40 5.23 43.37
1979 8.10 5.21 2.78 3.02 2.60 4.87 3.22 6.59 7.47 4.41 3.63 1.50 53.40
1980 2.73 0.90 5.09 4.24 3.33 4.53 3.08 1.94 2.31 3.32 2.52 0.89 34.88
1981 0.56 2.83 1.59 3.29 5.38 5.16 4.95 1.27 3.68 3.44 0.27 4.06 36.48
1982 2.78 3.53 3.78 4.62 4.59 4.35 3.62 0.72 2.72 2.25 4.88 2.33 40.17
1983 2.12 3.82 6.99 8.09 6.20 4.29 0.82 1.33 2.85 4.56 5.77 8.09 54.93
1984 2.27 4.63 5.37 4.19 4.34 2.01 6.70 4.23 1.62 2.66 2.75 1.62 42.39
1985 2.37 3.35 2.39 0.57 5.74 1.55 2.96 4.20 6.73 3.07 3.40 0.82 37.15
1986 3.30 3.80 1.25 1.92 1.16 2.26 1.75 5.47 0.73 2.50 5.70 6.23 36.07
1987 4.54 1.86 1.12 1.75 3.54 2.41 2.33 0.62 7.93 1.62 3.63 2.74 34.09
1988 2.84 3.98 2.00 2.47 5.41 1.06 4.00 4.63 1.82 2.11 5.88 0.94 37.14
1989 2.93 4.04 4.67 4.42 7.06 15.44 7.13 1.26 4.83 5.73 2.26 1.61 61.38
1990 4.42 1.07 3.04 4.14 7.22 2.63 6.02 8.71 1.41 3.36 1.59 5.47 49.08
1991 3.66 1.39 4.92 2.65 2.06 3.31 4.67 2.62 5.15 1.41 0.90 4.71 37.45
1992 0.97 2.34 4.75 1.41 2.74 1.59 4.46 3.01 4.58 1.22 3.54 3.68 34.29
1993 2.37 2.65 6.33 4.75 2.20 2.16 2.88 1.80 3.28 2.61 3.85 3.70 38.58
1994 5.41 4.15 8.59 3.43 3.68 a 1.40 3.37 5.77 1.94 1.18 2.21 a 2.05 43.18
1995 3.89 2.10 1.98 2.27 4.54 4.17 1.38 4.54 4.09 9.08 5.68 2.54 46.26
1996 4.41 2.38 4.59 4.07 5.27 9.51 7.18 3.73 5.05 4.44 2.88 8.66 62.17
1997 2.69 3.30 6.47 3.19 2.30 2.97 1.35 3.59 2.61 3.77 5.41 2.35 40.00
1998 5.65 4.02 6.03 3.65 4.92 4.92 3.42 3.03 2.86 1.07 1.27 1.87 42.71
1999 4.84 3.46 4.03 2.43 1.12 3.41 4.06 4.04 18.09 3.14 2.15 2.46 53.23
2000 3.56 2.42 5.96 5.20 3.24 4.29 7.70 2.95 5.31 0.31 1.93 3.32 46.19
2001 3.26 3.37 5.78 1.97 5.78 3.34 6.22 3.47 a 3.18 0.80 1.36 1.51 40.04
2002 2.55 0.63 3.81 a 3.09 4.37 1.88 2.87 1.81 4.22 6.93 5.34 5.34 42.84
2003 2.16 6.54 5.12 3.15 6.34 8.20 6.29 4.71 8.12 3.88 4.43 4.48 63.42
2004 1.82 2.14 3.03 4.82 3.59 1.83 4.51 2.98 4.89 1.57 5.07 2.65 38.90
2005 4.09 2.12 4.37 4.82 3.00 3.03 4.90 2.14 2.79 6.77 2.64 3.70 44.37
2006 4.24 1.47 0.35 3.99 1.23 11.66 2.30 d 0.44 6.43 5.49 4.57 1.43 43.60
2007 3.93 a 2.08 3.83 5.80 b 1.35 3.06 a 1.18 2.82 0.58 5.77 1.19 3.66 35.25
2008 2.14 3.61 2.97 2.88 7.40 2.30 b 4.31 0.81 a 4.99 1.48 3.77 5.50 42.16
2009 2.05 0.43 2.46 5.26 5.57 4.71 1.99 5.50 4.85 6.28 4.13 6.68 49.91
2010 3.20 4.63 6.08 2.38 1.80 0.85 6.64 5.20 6.14 7.61 a 2.32 2.32 49.17
2011 2.81 2.96 4.22 4.95 2.67 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.61
Period of Record Statistics
MEAN 3.38 3.02 3.94 3.42 3.87 4.08 4.16 3.95 3.82 3.30 3.25 3.59 43.76
S.D. 1.51 1.42 1.66 1.51 1.69 2.54 2.18 2.43 2.53 1.85 1.79 1.87 7.52
SKEW 1.39 0.61 0.22 0.59 0.02 1.70 0.86 1.23 2.11 1.00 0.60 0.64 0.78
MAX 10.14 6.54 8.59 8.09 7.40 15.44 11.90 11.98 18.09 9.23 8.37 8.66 63.42
MIN 0.42 0.43 0.35 0.57 0.00 0.71 0.80 0.44 0.02 0.00 0.21 0.40 29.49
NO YRS 90 92 92 93 95 92 94 91 94 95 95 92 81