MARTINSVILLE FILTER PLA, VIRGINIA

Monthly Total Precipitation (inches)

(445300)

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
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 1.11 1.04 2.52 4.55 9.22
1931 1.69 2.20 4.43 3.45 6.81 1.55 8.36 o 8.41 0.65 0.76 0.20 4.92 35.07
1932 4.92 3.32 7.36 3.12 1.90 4.25 2.44 0.93 1.30 9.59 r 4.87 5.89 n 34.41
1933 2.70 3.47 3.98 3.41 6.77 1.38 5.70 2.83 o 0.64 0.95 1.49 1.94 32.43
1934 1.58 3.57 6.67 3.53 4.04 6.91 4.43 2.68 6.62 k 2.73 4.24 2.51 42.89
1935 4.69 3.42 5.52 3.28 2.98 3.53 3.74 4.01 4.63 3.17 3.17 2.32 44.46
1936 7.95 5.08 5.53 3.97 1.33 4.35 4.17 2.82 4.85 o 3.69 0.96 6.38 j 39.85
1937 10.03 3.17 1.37 4.34 2.84 5.09 9.27 9.92 2.44 10.90 3.12 1.76 64.25
1938 2.98 0.87 2.05 2.38 4.00 7.80 7.88 f 2.76 1.82 1.09 4.78 3.53 34.06
1939 2.61 7.83 2.97 3.40 1.02 3.62 7.71 7.03 0.17 2.78 1.55 3.21 43.90
1940 2.22 3.00 i 3.40 5.07 5.41 4.03 8.34 11.09 0.40 1.20 5.69 2.85 49.70
1941 2.15 0.91 2.50 3.17 0.71 4.43 12.11 1.95 2.14 0.93 1.10 3.74 35.84
1942 3.50 2.46 4.27 0.90 7.80 7.28 3.17 7.65 4.60 s 3.08 1.49 4.04 a 45.64
1943 3.62 2.27 5.31 4.29 3.99 9.62 5.62 1.99 3.15 1.08 0.71 2.51 44.16
1944 2.97 5.39 7.67 3.14 j 2.80 1.13 2.05 2.71 9.43 3.26 2.60 2.89 42.90
1945 2.68 4.36 1.61 3.76 3.98 1.58 5.78 1.94 12.82 2.05 4.02 5.74 50.32
1946 4.59 2.60 3.00 3.10 7.07 1.64 4.86 1.19 3.70 2.07 1.86 2.08 37.76
1947 6.29 1.45 3.08 3.09 3.95 3.68 3.32 3.33 4.95 6.49 5.10 1.33 46.06
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.59 2.04 3.59 6.36 5.70 20.28
1949 4.56 2.56 2.60 3.78 6.67 3.73 4.28 6.90 3.61 3.74 1.36 1.91 45.70
1950 2.74 2.15 3.02 1.31 7.96 5.55 3.66 5.29 6.26 3.83 2.12 2.85 46.74
1951 1.40 3.35 4.11 a 4.58 1.34 6.51 5.81 1.98 0.97 1.57 4.19 5.90 41.71
1952 2.86 2.89 6.80 4.15 4.23 0.96 3.71 9.75 1.30 1.00 3.96 2.75 44.36
1953 3.62 4.28 5.59 2.08 2.13 3.04 3.73 2.16 0.93 1.24 0.79 4.78 34.37
1954 6.38 0.00 z 4.71 2.96 4.11 5.96 6.36 2.17 0.84 7.51 3.76 3.97 48.73
1955 1.08 4.35 4.85 4.25 2.76 4.30 7.21 6.06 1.33 1.53 1.81 0.71 40.24
1956 0.84 4.54 3.10 5.25 1.46 1.91 3.06 3.76 8.63 4.95 1.45 2.71 41.66
1957 2.88 4.65 2.10 7.17 4.75 5.40 1.67 3.18 13.10 2.25 7.47 3.12 57.74
1958 3.19 3.80 4.01 5.76 5.07 3.04 1.47 6.37 1.01 2.35 1.92 4.54 42.53
1959 2.53 1.55 3.30 5.13 2.87 1.95 4.42 4.78 8.73 0.00 z 1.58 3.25 40.09
1960 3.52 6.31 5.39 2.47 4.47 1.58 3.05 5.61 3.78 1.77 1.12 1.33 40.40
1961 2.75 5.01 5.99 3.74 2.51 6.11 2.84 5.06 0.82 1.33 3.89 6.03 46.08
1962 4.47 3.51 3.36 3.53 3.58 6.06 4.28 3.08 4.49 1.40 6.34 4.27 48.37
1963 0.00 z 2.20 6.02 1.30 2.85 2.01 4.42 h 2.15 5.08 0.19 4.99 1.82 28.61
1964 4.73 5.56 2.74 3.37 2.50 2.01 9.72 7.30 2.57 4.49 3.31 3.36 51.66
1965 2.63 4.64 4.79 3.13 2.58 3.31 5.90 4.08 1.88 3.64 0.91 0.34 37.83
1966 4.05 5.82 1.01 2.69 3.94 1.35 3.23 2.51 5.66 4.88 1.96 1.42 38.52
1967 1.04 2.68 2.12 1.55 4.74 1.14 3.12 7.61 3.55 1.36 1.60 6.52 37.03
1968 3.86 0.67 5.43 3.42 2.68 4.01 5.25 2.89 1.42 7.64 3.99 2.44 43.70
1969 1.72 2.82 4.21 2.91 3.21 6.62 6.46 3.81 3.63 1.64 1.02 5.57 43.62
1970 2.21 2.87 2.46 3.12 2.94 3.33 6.35 6.96 0.80 4.44 3.00 2.69 41.17
1971 1.98 5.63 3.44 0.00 z 7.89 3.23 5.26 2.94 1.88 7.20 2.84 1.42 43.71
1972 3.42 5.47 2.77 4.37 8.17 11.08 4.05 4.04 4.46 0.00 z 5.76 4.93 58.52
1973 3.69 4.88 5.57 5.43 4.03 5.50 3.85 3.99 3.03 4.28 1.17 6.75 52.17
1974 4.41 3.35 3.74 4.89 4.99 3.33 3.89 4.82 5.85 0.61 1.61 4.80 46.29
1975 4.98 3.17 8.19 1.75 4.33 0.00 z 4.84 0.00 z 0.00 z 0.00 z 1.75 3.05 32.06
1976 2.23 1.31 3.11 0.22 6.68 3.95 2.79 1.58 3.12 11.45 2.63 3.83 42.90
1977 1.82 0.89 3.37 2.98 1.45 3.17 2.62 3.21 3.82 7.74 3.33 3.48 37.88
1978 8.11 0.68 0.00 z 7.16 6.16 3.41 6.75 4.06 1.29 0.86 3.38 5.00 46.86
1979 7.38 6.16 4.34 4.18 3.94 5.03 3.13 0.00 z 11.18 3.28 4.07 0.72 53.41
1980 4.19 0.68 5.78 5.05 3.61 0.00 z 5.02 1.44 1.54 2.17 2.54 0.43 32.45
1981 0.86 3.43 2.57 2.53 3.98 2.31 2.39 1.52 6.11 3.00 0.83 4.10 33.63
1982 4.01 4.87 2.36 3.18 3.70 4.42 1.80 6.19 2.67 3.05 3.19 3.14 42.58
1983 0.00 z 4.73 5.81 0.00 z 4.33 5.25 1.70 1.82 1.33 8.17 5.62 5.15 43.91
1984 2.53 5.78 6.71 3.54 4.63 0.62 4.95 4.85 2.72 1.52 2.28 1.42 41.55
1985 3.85 0.00 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 3.85
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 0.95 4.72 4.22 9.89
1988 1.77 a 1.62 2.34 3.68 1.83 3.06 8.97 4.23 0.00 z 2.35 4.15 1.00 a 35.00
1989 2.09 2.43 c 4.06 2.91 6.03 7.35 9.28 1.99 8.56 3.74 2.28 3.39 54.11
1990 3.40 6.49 5.78 4.25 8.29 1.59 4.51 3.32 1.96 0.00 z 2.39 0.00 z 41.98
1991 0.00 z 2.27 a 8.21 3.02 2.29 4.25 4.78 4.00 f 1.54 0.35 2.40 5.23 34.34
1992 4.09 2.90 2.79 4.24 5.23 3.83 3.60 3.15 3.82 2.73 5.88 2.69 44.95
1993 4.79 3.19 9.46 4.36 4.22 2.01 7.32 2.47 2.64 1.43 2.18 4.46 48.53
1994 4.78 4.32 8.57 1.54 2.84 3.22 6.68 0.00 z 2.92 2.28 2.01 1.65 40.81
1995 5.14 1.79 1.65 0.60 5.13 9.65 4.33 2.43 2.72 7.00 2.91 1.23 44.58
1996 6.73 3.38 4.97 3.19 5.66 3.75 3.82 5.05 11.88 3.26 4.00 3.58 59.27
1997 3.83 2.76 5.03 4.58 0.65 4.20 3.45 4.32 3.77 3.16 1.81 2.89 e 40.45
1998 7.19 5.77 3.53 4.80 6.39 2.13 1.47 4.47 2.03 1.01 0.71 b 4.77 44.27
1999 2.91 b 2.43 2.49 3.01 1.91 1.81 7.25 3.06 11.84 2.12 1.00 2.51 42.34
2000 2.66 a 1.71 2.53 5.36 1.65 3.67 2.44 3.82 5.94 0.00 1.68 1.28 32.74
2001 2.88 1.69 5.01 1.38 8.11 3.20 4.14 2.99 1.15 0.18 0.51 3.11 34.35
2002 2.75 0.90 5.89 0.83 5.96 1.71 5.24 3.40 4.10 5.81 4.17 4.60 a 45.36
2003 2.62 6.43 6.79 5.50 6.37 8.16 6.38 5.06 6.78 1.65 3.36 4.27 63.37
2004 1.34 1.99 1.66 3.86 5.04 7.19 4.99 5.47 7.89 1.89 5.16 2.42 48.90
2005 2.51 2.41 3.20 2.27 1.32 2.42 8.27 3.28 b 1.05 4.58 2.94 4.13 38.38
2006 3.63 1.55 0.59 2.19 1.96 9.63 3.58 4.62 4.84 4.82 4.41 2.54 44.36
2007 4.58 2.20 4.03 3.43 1.19 2.28 3.74 2.06 5.92 7.24 0.61 3.39 40.67
2008 0.95 2.60 3.06 6.11 4.98 2.63 1.98 5.07 5.09 2.68 2.67 3.57 41.39
2009 3.62 1.65 3.09 3.47 4.88 5.88 1.32 3.96 3.07 3.69 10.35 7.61 52.59
2010 6.17 3.30 4.46 1.97 3.64 1.42 2.73 4.99 9.07 3.99 1.60 2.95 46.29
2011 1.22 1.14 6.46 3.53 5.35 4.09 1.04 1.09 4.97 3.92 5.50 3.55 41.86
2012 2.49 1.57 4.84 2.49 a 2.08 w 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 11.39
Period of Record Statistics
MEAN 3.52 3.26 4.24 3.46 4.10 4.03 4.63 4.07 3.98 3.17 2.98 3.34 44.37
S.D. 1.83 1.68 1.90 1.40 1.98 2.32 2.25 2.17 3.19 2.42 1.85 1.57 6.79
SKEW 1.11 0.47 0.53 0.15 0.33 0.95 0.87 1.09 1.24 1.33 1.08 0.30 0.96
MAX 10.03 7.83 9.46 7.17 8.29 11.08 12.11 11.09 13.10 11.45 10.35 7.61 64.25
MIN 0.84 0.67 0.59 0.22 0.65 0.62 1.04 0.93 0.17 0.00 0.20 0.34 32.74
NO YRS 76 76 77 75 77 75 74 73 74 75 80 77 54