SEATTLE MAPLE LEAF R, WASHINGTON

Monthly Precipitation - Daily Extreme (inches)

(457463)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 196010
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
1941 9999.00 z 9999.00 z 9999.00 z 9999.00 z 1.06 0.23 9999.00 z 0.63 l 0.53 1.07 0.92 1.49 e 1.49
1942 0.73 r 0.92 0.42 0.44 0.88 0.61 0.18 0.46 0.00 0.93 1.81 0.82 1.81
1943 2.30 0.56 1.63 0.44 0.35 0.53 0.22 0.57 0.05 1.39 0.50 0.64 2.30
1944 0.65 a 0.67 0.33 0.72 0.49 0.54 0.25 0.06 a 0.45 0.49 0.49 d 0.42 a 0.72
1945 0.56 b 1.43 c 0.55 c 0.57 c 0.65 a 0.20 a 0.16 0.56 1.02 b 0.65 0.58 f 0.92 c 1.43
1946 0.78 b 1.20 0.66 d 0.47 0.16 0.89 0.38 0.03 0.16 b 0.66 c 0.52 b 0.89 c 1.20
1947 1.17 0.81 a 0.80 0.35 0.22 0.48 a 0.19 a 0.63 0.56 1.23 b 0.82 e 0.68 e 1.23
1948 0.64 b 1.14 d 9999.00 z 9999.00 z 9999.00 z 0.69 b 1.03 0.38 1.45 0.71 1.54 0.69 1.54
1949 0.61 1.91 1.35 0.57 0.80 0.08 0.44 0.57 0.95 0.92 2.31 a 1.95 a 2.31
1950 9999.00 z 9999.00 z 2.72 0.87 0.20 0.12 0.52 0.79 1.02 9999.00 z 1.71 0.78 2.72
1951 1.24 1.71 0.50 0.55 0.56 0.17 0.08 0.62 0.69 0.68 0.79 1.35 a 1.71
1952 1.04 x 0.65 0.59 0.50 0.19 1.61 0.62 0.37 0.47 0.26 0.39 0.73 1.61
1953 1.67 0.60 0.84 0.46 0.56 0.86 0.65 0.26 1.18 1.05 1.16 0.87 1.67
1954 1.60 2.55 1.04 0.94 0.56 0.73 1.34 0.40 0.57 0.18 1.79 1.22 2.55
1955 0.59 1.31 0.39 0.56 0.51 0.49 0.51 0.07 0.43 1.29 1.76 1.11 1.76
1956 1.34 0.47 0.85 0.29 0.36 1.23 0.16 A 0.34 0.84 A 0.60 0.86 1.10 a 1.34
1957 0.46 3.24 A 1.04 A 0.89 A 0.74 A 0.52 A 0.39 A 0.26 A 0.33 A 1.15 A 0.75 A 1.00 A 0.46
1958 1.26 1.43 A 0.42 A 0.96 A 0.27 0.51 A 0.00 0.15 A 0.69 A 1.94 A 0.90 A 1.05 A 1.26
1959 1.56 A 0.74 A 1.01 A 0.74 0.93 A 0.35 0.39 0.19 0.85 0.77 A 1.86 A 2.22 A 0.85
1960 1.80 A 1.55 A 0.81 A 0.39 A 0.51 0.42 0.00 0.40 A 0.67 A 2.02 A 9999.00 z 9999.00 z 0.51
Period of Record Statistics
MEAN 1.14 1.27 0.89 0.59 0.53 0.56 0.40 0.37 0.65 0.95 1.16 1.05 1.62
S.D. 0.55 0.74 0.57 0.21 0.27 0.38 0.34 0.22 0.37 0.49 0.59 0.45 0.67
SKEW 0.45 1.23 1.94 0.51 0.35 1.17 1.32 0.03 0.18 0.67 0.38 1.24 -0.26
MAX 2.30 3.24 2.72 0.96 1.06 1.61 1.34 0.79 1.45 2.02 2.31 2.22 2.55
MIN 0.46 0.47 0.33 0.29 0.16 0.08 0.00 0.03 0.00 0.18 0.39 0.42 0.46
NO YRS 16 18 18 18 19 20 19 19 20 19 18 19 10