MOUNT SHASTA, CALIFORNIA

Monthly Total Precipitation (inches)

(045983)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201012
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.31 0.44 2.14 1.63 2.60 2.82 10.94
1949 0.49 4.18 11.91 0.28 2.81 0.30 0.01 0.00 0.24 0.40 2.29 0.93 23.84
1950 5.99 3.98 3.48 3.63 0.46 2.20 0.00 0.00 2.08 13.88 4.95 5.08 45.73
1951 5.64 4.31 1.00 1.93 2.71 0.00 0.00 0.26 0.27 1.79 9.86 9.88 37.65
1952 10.53 2.76 5.05 1.62 1.91 2.60 0.70 0.00 0.34 0.69 3.13 17.34 46.67
1953 8.38 0.59 6.49 1.99 3.16 0.81 0.00 0.15 0.02 1.59 8.44 1.27 32.89
1954 12.42 6.07 3.70 2.10 0.01 1.19 0.00 2.47 0.13 0.83 7.02 6.62 42.56
1955 3.29 1.02 0.90 5.46 0.08 0.27 0.05 0.00 0.92 0.36 5.89 17.48 35.72
1956 12.12 9.42 0.29 0.54 2.69 0.93 0.59 0.02 0.20 2.70 0.12 0.40 30.02
1957 6.58 8.17 4.41 3.30 5.28 0.01 0.01 0.00 6.83 5.60 2.27 6.11 48.57
1958 7.17 17.60 11.84 5.44 1.39 1.79 1.77 0.17 1.28 0.32 0.95 2.39 52.11
1959 14.82 10.32 1.84 0.49 0.63 0.47 0.00 0.24 1.95 0.02 0.00 1.96 32.74
1960 6.32 7.60 4.86 2.23 3.18 0.00 0.15 0.00 0.13 2.28 8.39 6.79 41.93
1961 2.73 4.60 6.42 1.84 2.86 0.76 0.73 0.28 0.50 1.26 7.59 3.76 33.33
1962 2.02 14.38 3.94 0.52 2.55 0.03 0.00 0.81 0.57 9.71 2.98 3.64 41.15
1963 4.38 3.74 5.82 7.82 1.94 1.86 0.07 0.39 0.65 2.83 7.21 0.94 37.65
1964 5.65 0.36 2.30 0.13 2.02 1.10 0.49 0.05 0.13 1.11 6.10 13.03 32.47
1965 7.01 1.45 0.63 8.08 0.65 0.91 0.25 1.97 0.00 0.05 12.31 5.18 38.49
1966 8.95 3.89 2.58 0.48 0.25 0.21 0.04 0.23 0.56 0.00 11.32 6.92 35.43
1967 7.61 0.53 8.49 6.67 0.96 1.86 0.05 0.15 0.07 1.89 2.74 6.23 37.25
1968 8.40 3.45 4.09 0.40 1.12 1.66 0.02 0.78 0.15 1.83 2.75 11.85 36.50
1969 9.78 10.09 0.82 3.28 1.03 0.77 0.03 0.00 0.13 1.00 2.81 13.09 42.83
1970 11.71 4.04 0.86 1.15 0.14 0.57 0.00 0.00 0.08 1.79 10.36 6.58 37.28
1971 4.53 0.21 4.88 1.67 4.33 0.41 0.16 0.10 0.30 1.41 4.28 4.84 27.12
1972 2.44 2.14 2.41 2.62 1.52 0.89 0.00 0.32 0.41 2.64 5.81 3.10 24.30
1973 7.13 9.30 2.88 0.37 0.34 0.00 0.04 0.10 1.46 5.08 17.22 5.34 49.26
1974 13.11 4.97 10.22 3.10 0.12 0.62 0.67 0.53 0.00 1.52 3.01 5.76 43.63
1975 2.79 8.32 9.83 1.51 0.09 0.53 0.12 0.33 0.00 3.88 2.36 1.74 31.50
1976 0.48 2.87 1.22 3.79 0.24 0.43 0.28 2.55 0.36 0.36 0.90 0.73 14.21
1977 1.07 1.84 1.58 1.18 1.71 0.50 0.71 0.35 3.01 1.07 2.79 7.88 23.69
1978 21.18 8.10 10.46 6.05 0.69 0.96 0.42 0.33 3.49 0.00 1.45 0.59 53.72
1979 4.63 7.97 5.34 3.09 1.71 0.02 0.07 0.73 0.58 5.48 4.57 5.44 39.63
1980 3.55 10.62 1.75 3.50 1.04 1.76 0.00 0.06 0.93 1.33 1.13 5.26 30.93
1981 9.75 4.38 4.00 0.83 1.60 0.16 0.05 0.00 0.74 3.85 14.12 8.21 47.69
1982 2.84 4.37 6.96 4.50 0.60 3.56 0.31 0.87 1.45 5.92 4.73 8.95 45.06
1983 11.45 12.37 14.78 4.87 0.72 0.41 0.08 0.65 1.10 2.52 10.78 11.22 70.95
1984 0.19 2.95 3.98 1.83 0.38 0.75 1.56 1.08 0.37 e 1.92 16.85 1.62 33.48
1985 0.42 1.36 1.90 0.08 0.37 0.10 1.69 0.24 1.34 2.26 1.84 3.01 14.61
1986 13.62 14.68 6.23 0.89 2.47 0.33 0.83 0.00 3.84 1.60 1.11 3.00 48.60
1987 4.99 5.62 9.41 1.53 1.10 0.45 1.80 0.00 0.00 0.26 3.02 12.68 40.86
1988 5.78 0.41 0.43 4.05 2.13 1.53 0.09 0.04 0.00 0.07 8.42 3.47 26.42
1989 2.05 0.93 14.90 2.36 1.34 0.68 0.00 0.19 2.14 7.71 0.85 0.07 33.22
1990 7.36 2.84 3.26 1.28 9.30 0.82 0.60 1.28 0.14 0.56 1.02 0.75 29.21
1991 0.95 3.86 12.04 0.71 2.71 0.82 0.26 0.03 0.08 0.73 2.38 3.07 27.64
1992 3.79 12.41 7.05 2.70 0.01 2.45 0.14 0.23 0.18 2.62 1.09 14.28 46.95
1993 11.47 7.98 5.80 3.05 5.24 0.84 0.00 0.87 0.05 1.76 1.14 7.54 45.74
1994 6.69 4.16 0.93 1.42 2.53 0.12 0.07 0.00 0.46 0.22 5.86 2.91 25.37
1995 27.48 0.85 18.86 5.36 1.94 2.78 0.65 0.00 0.00 0.05 0.52 11.59 70.08
1996 7.53 9.64 3.20 4.68 3.68 1.06 0.53 0.07 0.63 1.83 5.48 22.32 60.65
1997 8.36 1.01 1.61 1.53 0.42 3.56 0.45 1.27 1.15 1.84 9.77 3.50 34.47
1998 14.95 21.80 7.40 3.49 7.37 2.90 0.00 0.26 1.30 1.85 12.13 1.70 75.15
1999 4.28 10.59 5.47 2.63 0.27 0.09 0.00 0.38 0.00 1.82 8.34 1.22 35.09
2000 12.92 16.69 2.13 5.39 1.42 0.33 1.68 0.49 0.44 2.54 1.46 1.30 46.79
2001 4.11 9.70 4.08 2.34 0.17 2.43 0.15 0.00 1.58 1.02 9.53 10.77 45.88
2002 4.63 3.58 2.21 2.06 2.20 0.80 0.02 0.21 0.74 0.03 4.55 25.93 46.96
2003 4.66 2.74 6.67 9.07 0.37 0.27 0.57 0.69 0.21 0.05 7.24 10.65 43.19
2004 5.44 14.58 1.80 2.08 1.52 0.09 0.02 0.40 0.15 7.75 1.41 10.65 45.89
2005 5.74 3.35 7.21 2.99 6.07 3.76 0.00 0.00 0.12 1.28 6.01 16.92 53.45
2006 7.94 6.86 11.89 6.83 3.22 0.73 a 0.01 0.00 0.00 0.18 4.05 8.26 49.97
2007 0.86 9.57 1.64 1.51 0.69 0.30 0.56 0.03 0.39 3.59 0.63 7.93 27.70
2008 10.72 3.93 0.51 0.53 1.27 0.02 0.00 0.22 0.00 3.18 5.19 2.29 27.86
2009 1.15 10.51 9.00 0.69 2.94 2.83 0.00 0.72 0.23 4.61 2.11 5.01 39.80
2010 15.62 8.03 4.86 7.70 2.55 0.15 k 0.07 h 0.08 0.00 z 0.00 z 3.72 n 12.81 51.65
2011 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
2012 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 1.05 c 8.11 10.48 a 19.64
2013 0.88 1.02 2.89 0.13 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 4.79
Period of Record Statistics
MEAN 7.01 6.22 5.16 2.83 1.87 1.01 0.34 0.38 0.79 2.24 5.16 6.80 39.66
S.D. 5.21 4.85 4.11 2.22 1.83 1.00 0.50 0.55 1.16 2.53 4.15 5.55 12.05
SKEW 1.31 0.97 1.14 1.00 1.81 1.22 1.78 2.38 2.94 2.33 0.99 1.20 0.62
MAX 27.48 21.80 18.86 9.07 9.30 3.76 1.80 2.55 6.83 13.88 17.22 25.93 75.15
MIN 0.19 0.21 0.29 0.08 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.07 14.21
NO YRS 63 63 63 62 62 61 62 63 62 63 63 64 61