MOUNT LAKE BIOL STN, VIRGINIA

Monthly Total Precipitation (inches)

(445828)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 199711
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
1971 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 2.18 o 1.53 1.53
1972 5.02 5.39 3.46 4.22 7.66 11.59 5.74 1.59 4.24 4.83 6.00 5.26 65.00
1973 2.51 4.09 7.16 6.58 7.45 4.45 9.48 3.90 2.11 5.27 3.18 8.65 64.83
1974 4.66 3.32 4.69 1.99 3.80 6.02 6.74 2.82 4.07 2.60 2.41 4.42 47.54
1975 4.28 4.06 8.64 3.51 5.60 7.74 3.77 3.59 5.54 5.02 1.84 4.03 57.62
1976 3.09 2.31 3.18 0.44 4.89 7.82 3.36 1.71 4.36 8.10 1.65 2.94 43.85
1977 2.26 2.02 3.98 6.25 2.28 5.21 3.83 5.07 4.81 5.68 8.01 2.25 51.65
1978 6.48 1.34 5.99 8.45 4.67 3.45 6.03 7.17 1.67 1.32 3.77 5.08 55.42
1979 6.15 5.00 6.40 3.69 4.41 7.59 5.16 5.46 10.68 3.98 5.50 2.50 66.52
1980 4.04 2.94 5.33 8.40 5.41 2.12 6.65 4.14 2.07 2.53 2.58 1.18 47.39
1981 0.65 3.80 3.19 3.27 5.39 4.82 6.21 1.05 3.05 4.79 1.25 3.85 41.32
1982 4.48 5.41 2.91 3.55 2.47 6.96 3.75 4.09 1.81 4.22 4.18 4.53 48.36
1983 2.01 3.61 4.35 5.81 5.53 2.20 3.91 2.39 1.80 6.56 3.38 4.65 46.20
1984 1.22 5.11 5.21 5.71 5.22 2.81 3.88 7.37 1.49 3.53 3.29 2.58 47.42
1985 2.41 3.02 1.23 b 1.53 5.21 3.05 6.70 9.29 0.52 3.03 9.21 1.08 46.28
1986 1.99 c 2.23 2.78 b 2.01 7.03 2.21 7.58 7.31 6.58 3.40 6.12 a 3.40 h 49.24
1987 2.33 k 1.20 g 6.53 8.62 f 4.10 3.54 4.52 2.17 6.45 2.18 4.78 c 2.36 e 36.63
1988 1.31 g 3.14 d 1.99 b 5.07 a 3.94 1.49 4.01 3.50 6.13 2.43 2.87 a 0.95 e 35.52
1989 3.09 d 1.59 h 4.22 4.33 b 6.89 7.05 5.00 1.72 11.94 b 5.73 a 3.16 b 0.00 q 53.13
1990 1.78 a 5.04 c 4.99 a 2.09 l 9.83 2.19 4.33 4.99 0.00 z 11.26 1.85 0.00 z 46.26
1991 0.00 z 0.00 z 0.00 z 0.00 z 7.28 1.63 7.50 1.02 i 0.46 0.28 3.85 b 2.94 p 21.00
1992 1.70 h 3.53 h 2.09 n 2.24 g 3.20 c 7.68 d 2.89 c 1.47 1.59 g 1.14 c 5.91 d 1.46 r 22.29
1993 2.77 e 0.10 n 4.79 h 3.81 c 2.20 d 0.88 b 1.31 e 3.95 a 4.59 2.50 a 3.51 a 3.39 h 25.52
1994 1.67 f 4.27 d 7.22 c 3.28 a 2.24 2.40 7.31 a 6.02 f 1.04 2.89 2.16 a 2.92 a 35.73
1995 7.01 g 2.74 d 1.39 c 2.57 5.33 7.78 a 2.36 2.17 3.83 4.88 c 3.72 d 0.65 n 36.77
1996 5.08 d 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 1.36 q 5.08
1997 1.60 d 1.84 f 5.66 c 2.37 a 2.52 3.37 b 3.23 1.93 3.23 1.77 2.64 g 0.00 z 25.68
Period of Record Statistics
MEAN 3.28 3.62 4.57 4.14 4.98 4.64 5.01 3.86 4.02 4.00 3.92 3.38 52.10
S.D. 1.65 1.22 1.97 2.13 1.97 2.75 1.93 2.25 2.95 2.38 2.00 1.92 8.37
SKEW 0.38 -0.06 0.12 0.49 0.42 0.64 0.31 0.81 1.18 1.13 1.02 1.00 0.66
MAX 6.48 5.41 8.64 8.45 9.83 11.59 9.48 9.29 11.94 11.26 9.21 8.65 66.52
MIN 0.65 1.34 1.23 0.44 2.20 0.88 1.31 1.05 0.46 0.28 1.25 0.95 41.32
NO YRS 20 19 22 21 25 25 25 23 23 25 24 18 14