MILL CREEK, WASHINGTON

Monthly Precipitation - Daily Extreme (inches)

(455377)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197309
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
1915 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.51 1.41 0.88 1.41
1916 1.28 1.25 1.67 0.95 0.71 1.44 0.90 0.47 0.62 0.72 1.23 1.27 1.67
1917 0.93 0.40 0.30 0.96 0.78 0.60 0.00 0.00 1.20 0.14 0.88 2.00 2.00
1918 1.47 0.85 0.90 0.60 1.45 0.17 1.00 0.52 0.39 0.99 0.88 1.27 1.47
1919 0.94 0.71 0.93 1.32 1.00 0.07 0.11 0.10 0.82 1.52 a 1.76 0.80 1.76
1920 2.40 0.49 1.17 1.20 0.93 0.70 0.40 0.86 1.05 1.12 2.04 2.38 2.40
1921 1.38 0.80 4.22 0.98 0.39 0.24 0.39 0.13 2.68 0.52 1.10 1.05 4.22
1922 0.50 0.92 a 0.85 0.85 0.54 1.00 0.29 1.04 0.46 1.10 1.74 0.70 a 1.74
1923 1.60 0.90 0.60 0.56 0.68 3.58 0.13 0.73 0.27 1.76 1.16 1.84 3.58
1924 0.76 0.72 0.84 0.52 0.19 0.94 0.69 0.85 0.98 0.88 1.21 1.12 1.21
1925 0.63 0.87 0.74 0.52 1.54 0.37 0.02 0.55 0.42 0.35 0.58 1.43 1.54
1926 0.93 2.51 0.52 0.58 0.84 1.90 0.04 1.45 1.00 1.28 1.82 0.58 2.51
1927 1.28 0.68 0.94 0.96 0.77 1.18 0.00 0.29 2.61 0.97 1.91 0.54 2.61
1928 2.23 0.24 1.70 1.91 0.06 0.42 0.68 0.08 1.41 0.69 0.62 0.93 2.23
1929 1.67 0.28 0.55 0.61 0.40 1.24 0.00 0.15 0.37 1.20 0.48 0.90 1.67
1930 0.71 1.53 1.24 0.49 1.68 0.64 0.00 0.11 0.87 1.36 0.81 0.67 1.68
1931 0.96 b 0.57 a 3.81 1.11 0.38 1.73 0.00 0.03 0.36 1.28 1.11 1.15 3.81
1932 1.39 0.68 1.95 0.70 0.69 0.21 0.52 0.06 0.37 1.10 1.28 0.90 1.95
1933 1.03 0.64 0.58 a 0.59 1.36 0.59 0.03 0.48 1.32 1.57 1.36 2.40 2.40
1934 0.74 0.42 1.38 0.67 0.78 0.84 a 0.11 0.27 0.76 0.85 1.14 0.94 1.38
1935 0.94 0.56 1.20 1.09 0.27 0.65 0.21 0.90 0.39 1.21 0.24 1.02 1.21
1936 1.51 1.02 0.51 0.27 1.05 0.93 0.16 0.21 0.79 0.08 0.11 0.78 1.51
1937 0.68 0.70 1.00 1.08 1.06 0.96 0.07 0.11 0.68 1.23 1.01 1.04 1.23
1938 0.68 1.41 0.84 1.16 1.02 0.98 0.02 0.00 0.20 1.50 1.26 0.54 1.50
1939 0.60 1.64 1.29 0.38 0.40 0.49 0.53 0.10 0.26 0.91 0.35 0.92 1.64
1940 0.54 1.52 1.05 1.69 0.66 0.48 1.76 0.00 1.00 1.50 1.09 1.04 1.76
1941 0.70 0.34 0.66 0.35 1.51 1.55 0.48 0.25 0.90 1.31 1.64 1.00 1.64
1942 9999.00 z 9999.00 z 1.96 e 0.85 1.45 1.61 0.62 0.54 0.13 1.65 1.56 1.51 1.96
1943 0.70 1.12 1.33 1.60 1.25 0.40 0.17 0.42 0.00 2.36 1.38 0.88 2.36
1944 0.62 0.98 0.63 1.18 0.43 0.58 0.15 0.11 0.90 0.56 0.98 0.48 1.18
1945 1.10 1.60 1.00 2.10 0.71 0.65 0.15 0.25 1.08 0.70 0.61 1.42 2.10
1946 1.64 0.99 2.39 0.99 1.17 1.61 9999.00 z 0.30 0.57 0.92 1.12 1.35 2.39
1947 1.12 0.31 0.91 0.93 0.40 1.88 0.20 0.26 0.70 1.09 1.18 0.83 1.88
1948 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.43 9999.00 z 0.11 0.42 1.41 1.39 1.35 1.41
1949 0.55 0.93 0.61 0.59 0.80 0.36 0.06 0.19 1.09 1.75 0.80 0.70 1.75
1950 0.71 1.51 1.03 0.66 0.84 2.30 0.09 0.40 0.65 1.18 1.71 1.04 2.30
1951 1.37 0.53 1.09 0.83 0.37 2.04 0.23 0.14 0.89 2.03 0.93 0.97 2.04
1952 0.45 0.84 0.89 1.71 0.86 1.18 0.42 0.00 0.44 0.15 0.38 0.82 1.71
1953 2.31 2.07 0.96 1.59 1.19 0.54 0.00 0.50 0.45 0.91 1.94 1.16 2.31
1954 1.63 0.45 0.75 1.41 0.86 1.87 0.27 1.17 0.38 0.78 1.03 1.67 1.87
1955 0.50 0.39 0.94 0.99 0.87 0.43 0.55 0.00 0.85 1.77 1.60 1.09 1.77
1956 1.36 0.77 0.84 0.19 1.78 0.39 0.14 0.86 0.55 1.09 0.72 1.97 1.97
1957 0.50 1.30 1.29 0.75 1.28 0.40 0.01 0.36 0.30 2.13 1.55 1.27 2.13
1958 1.19 1.98 0.62 1.23 0.62 0.78 0.08 0.07 0.44 0.73 2.67 1.41 2.67
1959 1.42 0.61 1.07 0.72 1.03 0.78 0.45 0.56 0.98 1.10 0.80 0.60 1.42
1960 0.70 1.11 1.52 1.13 1.09 0.53 0.06 0.83 0.89 0.80 1.50 0.78 1.52
1961 0.60 1.90 2.18 1.12 A 0.76 0.43 0.10 0.54 0.74 1.61 0.96 1.55 2.18
1962 0.82 0.60 0.92 1.72 0.74 0.41 0.01 0.43 1.60 1.47 1.12 1.23 1.72
1963 0.50 0.68 1.12 0.88 0.22 0.73 9999.00 z 0.20 0.50 0.42 2.24 0.62 2.24
1964 1.05 0.49 0.65 1.51 0.34 0.51 0.49 0.42 0.60 0.53 2.55 2.06 2.55
1965 2.23 0.91 0.27 1.32 1.12 2.70 0.55 1.02 0.92 1.04 0.64 0.25 2.70
1966 1.77 0.89 1.24 0.45 1.17 0.93 1.80 0.40 0.78 1.08 1.01 1.75 1.80
1967 1.60 0.40 1.21 0.95 1.32 0.40 0.00 0.00 0.81 0.93 0.90 1.57 1.60
1968 0.67 1.80 1.26 0.85 0.69 0.48 0.41 1.15 1.14 1.22 1.43 1.51 1.80
1969 1.65 0.60 A 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.00 1.07 1.89 1.50 2.02 A 1.89
1970 2.28 1.71 1.22 2.39 0.50 0.90 0.31 0.01 1.49 0.95 1.25 0.88 2.39
1971 1.85 0.62 1.27 0.62 0.95 0.84 0.82 0.19 1.19 0.82 1.13 2.16 2.16
1972 1.75 0.90 2.01 0.85 1.29 0.78 0.50 0.44 1.55 0.25 0.71 9999.00 z 2.01
1973 0.80 A 1.02 1.22 1.20 9999.00 z 9999.00 z 9999.00 z 0.73 1.10 9999.00 z 9999.00 z 9999.00 z 1.22
Period of Record Statistics
MEAN 1.14 0.94 1.18 0.99 0.86 0.92 0.32 0.39 0.82 1.09 1.20 1.18 2.00
S.D. 0.54 0.51 0.71 0.46 0.40 0.68 0.39 0.35 0.51 0.50 0.53 0.50 0.62
SKEW 0.69 1.00 2.41 0.80 0.20 1.65 2.10 1.00 1.57 0.19 0.49 0.69 1.57
MAX 2.40 2.51 4.22 2.39 1.78 3.58 1.80 1.45 2.68 2.36 2.67 2.40 4.22
MIN 0.45 0.24 0.27 0.19 0.06 0.07 0.00 0.00 0.00 0.08 0.11 0.25 1.18
NO YRS 56 56 56 56 55 56 53 58 58 58 58 57 51