YELLOWSTONE PARK, WYOMING

Monthly Precipitation - Daily Extreme (inches)

(489905)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1894 0.41 0.41 0.50 9999.00 z 9999.00 z 9999.00 z 0.25 0.75 0.27 0.25 0.10 1.20 w 1.20
1895 1.60 0.02 w 0.75 0.33 0.53 1.55 0.22 0.50 0.20 0.41 0.40 0.70 1.60
1896 0.61 0.55 u 0.41 0.59 0.72 0.25 0.67 0.22 0.37 0.06 0.80 0.15 0.80
1897 9999.00 z 0.30 u 0.68 0.47 1.00 0.60 0.38 0.26 0.27 0.67 0.55 0.45 1.00
1898 0.20 0.80 v 0.50 0.30 0.45 0.50 0.60 0.50 0.50 0.35 0.33 0.20 0.80
1899 1.40 0.40 0.50 0.75 0.60 0.55 0.40 0.70 0.53 0.50 v 0.03 0.60 v 1.40
1900 0.42 x 0.70 v 0.63 0.60 u 0.60 1.00 0.30 0.17 0.25 0.40 0.62 0.23 1.00
1901 0.90 0.20 m 0.35 0.30 0.60 0.40 o 0.30 0.60 0.60 0.25 0.25 0.50 l 0.90
1902 0.20 0.20 0.60 0.50 0.65 0.42 1.40 0.38 0.50 0.20 0.40 0.20 1.40
1903 0.20 0.15 0.25 0.30 0.30 0.30 0.20 0.45 0.50 0.40 0.40 0.40 0.50
1904 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1905 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1906 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1907 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1908 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1909 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1910 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1911 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1912 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1913 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1914 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 9999.00 z 9999.00 z 9999.00 z 9999.00
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 9999.00 z 9999.00 z 9999.00 z 9999.00
1916 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1917 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1918 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1919 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1920 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1921 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1922 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1923 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1924 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1925 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1926 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1927 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1928 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1929 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1930 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1931 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1932 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1933 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1934 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1935 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1936 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1937 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1938 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1939 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1940 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 9999.00 z 9999.00 z 9999.00 z 9999.00
1941 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.62 0.64 1.53 0.49 0.62 0.50 0.60 1.53
1942 0.39 0.13 0.10 0.38 0.58 0.25 0.17 0.09 0.44 0.27 0.65 0.20 0.65
1943 9999.00 z 0.20 0.73 0.55 0.64 0.70 0.17 0.25 0.28 0.45 0.20 0.45 0.73
1944 0.13 0.68 0.25 0.15 1.06 1.01 0.31 0.39 1.08 0.52 0.55 0.18 1.08
1945 0.18 0.18 0.29 0.29 0.64 1.19 0.22 0.77 0.60 0.28 0.52 0.29 1.19
1946 0.32 0.35 0.64 0.19 0.41 0.69 0.30 0.37 0.85 0.72 0.58 0.36 0.85
1947 0.17 0.39 0.38 0.32 0.54 1.43 0.40 0.87 0.87 0.26 0.23 0.30 1.43
1948 0.40 0.23 0.50 0.40 0.78 0.45 0.34 0.34 0.47 w 0.16 0.50 h 0.32 0.78
1949 0.21 0.45 a 0.23 0.35 0.47 0.42 a 0.17 0.34 a 0.65 0.74 0.33 0.28 0.74
1950 0.64 0.24 0.23 0.39 0.79 0.58 0.49 0.35 0.82 0.39 a 0.23 0.49 0.82
1951 0.23 0.11 0.40 0.55 e 0.60 0.40 0.45 0.81 0.31 0.58 0.09 0.30 0.81
1952 0.41 0.23 0.51 0.20 0.80 0.92 0.89 0.57 0.10 0.00 0.21 0.28 0.92
1953 0.29 0.34 0.31 0.86 0.55 0.44 9999.00 z 0.24 0.39 0.16 0.32 0.34 0.86
1954 0.35 0.21 0.46 0.37 0.40 0.77 0.18 a 0.23 0.21 0.16 0.30 0.30 0.77
1955 0.50 0.15 0.35 0.10 0.42 0.53 0.35 0.25 0.32 0.46 0.48 1.70 1.70
1956 0.23 0.13 0.20 0.49 0.35 0.75 0.19 0.55 A 0.22 0.37 0.30 0.55 0.75
1957 0.42 0.25 0.26 0.24 0.52 0.32 0.55 0.37 0.48 0.17 0.47 0.14 0.55
1958 0.10 0.13 0.37 0.87 0.46 0.60 0.20 0.40 0.40 0.30 0.29 0.29 0.87
1959 0.23 0.43 0.25 0.43 0.53 a 0.58 0.37 0.38 0.35 0.42 0.32 0.18 0.58
1960 0.15 0.31 0.19 0.48 1.20 0.50 0.16 0.60 0.09 0.29 0.90 0.12 1.20
1961 0.07 0.33 0.32 A 0.47 0.21 0.12 0.88 0.57 1.25 0.42 0.25 0.25 1.25
1962 0.77 0.61 0.50 0.52 0.65 0.42 0.32 0.33 0.50 0.48 0.49 0.30 0.77
1963 0.50 0.25 0.53 0.35 0.62 0.47 0.24 0.62 0.61 0.32 0.31 0.20 0.62
1964 0.40 0.19 0.17 0.43 0.31 0.67 0.78 0.42 0.07 0.74 0.55 1.32 1.32
1965 0.58 A 0.30 0.26 0.47 0.54 0.40 0.66 0.22 0.23 0.20 0.36 0.30 0.66
1966 0.40 0.20 0.30 0.80 0.59 0.38 0.12 0.18 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.80
1967 9999.00 z 0.50 0.65 0.35 1.09 0.45 0.88 0.09 0.18 0.67 0.65 0.55 1.09
1968 0.90 0.15 0.10 0.28 0.42 0.66 0.19 0.94 0.63 0.48 0.49 0.15 0.94
1969 0.70 0.50 0.12 0.63 0.35 0.65 0.36 0.57 0.50 0.48 0.15 0.51 0.70
1970 0.23 0.16 0.40 0.50 0.47 0.63 0.39 0.21 0.27 0.18 0.50 0.40 0.63
1971 0.36 a 0.25 0.16 0.08 9999.00 z 0.41 0.42 0.66 0.76 0.20 0.39 0.47 0.76
1972 0.60 0.70 0.30 0.75 0.48 0.72 0.40 0.51 0.91 0.48 0.09 0.34 0.91
1973 0.07 0.22 0.10 0.28 0.60 0.30 0.33 0.35 0.48 0.32 9999.00 z 0.12 0.60
1974 0.14 0.14 1.17 0.20 0.70 0.35 0.33 0.75 0.07 0.48 0.10 0.23 1.17
1975 0.15 0.15 0.40 0.32 0.28 0.32 0.48 0.29 0.29 0.77 0.24 0.22 0.77
1976 0.05 0.20 0.47 0.20 1.01 1.50 0.73 1.10 A 0.61 0.34 0.20 0.05 1.50
1977 0.26 0.15 0.30 0.05 9999.00 z 9999.00 z 9999.00 z 9999.00 z 9999.00 z 0.05 9999.00 z 0.35 b 0.35
1978 9999.00 z 9999.00 z 9999.00 z 0.40 0.45 0.62 0.33 0.19 0.37 0.27 0.29 0.50 0.62
1979 0.30 A 0.12 2.10 0.02 0.07 0.90 0.61 0.66 0.04 0.51 0.19 0.11 2.10
1980 0.22 0.28 0.14 0.13 0.94 A 0.27 0.28 0.55 A 0.47 0.30 0.75 0.19 0.75
1981 0.04 0.15 0.20 0.28 0.40 c 0.52 9999.00 z 9999.00 z 9999.00 z 1.16 0.25 A 0.33 1.16
1982 0.25 j 0.34 0.82 d 1.00 c 0.79 l 0.43 0.48 2.25 a 0.98 9999.00 z 0.29 0.27 d 2.25
1983 0.08 a 0.21 a 0.38 a 0.23 A 0.12 a 0.57 1.21 9999.00 z 0.59 A 9999.00 z 0.48 c 0.18 c 1.21
1984 0.06 a 0.11 a 0.19 0.70 a 0.22 b 0.42 0.68 0.39 9999.00 z 9999.00 z 0.32 a 9999.00 z 0.70
1985 0.23 0.52 0.39 c 0.16 0.65 h 0.26 0.34 9999.00 z 0.36 0.24 0.37 a 0.17 0.65
1986 0.15 A 0.13 c 0.62 a 0.70 0.22 0.47 0.39 0.48 0.60 0.22 0.65 0.02 0.70
1987 0.14 0.11 0.40 0.23 0.51 0.33 1.18 0.55 0.09 0.00 0.21 0.20 1.18
1988 0.13 0.23 0.21 0.44 1.86 0.18 0.36 0.11 0.22 0.14 0.52 0.10 1.86
1989 0.53 0.15 0.23 0.46 0.75 0.80 0.50 0.60 0.22 0.61 0.15 0.30 0.80
1990 0.15 0.14 0.13 0.28 0.94 0.60 0.14 0.43 0.30 0.86 0.10 0.22 b 0.94
1991 0.09 0.28 0.29 0.74 0.87 0.16 0.17 0.09 0.87 0.91 0.32 0.13 a 0.91
1992 0.10 0.14 0.26 0.57 1.04 1.15 0.36 0.10 0.60 0.59 0.11 0.34 a 1.15
1993 0.25 0.25 0.22 0.60 1.18 0.84 0.71 0.38 0.06 0.24 0.81 a 0.07 b 1.18
1994 0.10 0.25 0.19 0.30 0.31 0.78 0.47 0.24 0.42 0.63 0.22 0.63 a 0.78
1995 0.14 0.20 0.65 0.65 0.39 0.54 0.34 0.32 0.25 0.31 0.19 0.36 0.65
1996 0.24 b 0.23 b 0.57 a 0.37 0.54 0.32 0.45 0.25 0.25 0.30 0.78 d 0.26 a 0.78
1997 0.60 d 0.09 a 0.20 0.29 a 0.28 0.82 0.87 0.58 0.62 0.70 0.13 0.08 b 0.87
1998 0.43 a 0.11 b 0.20 0.17 0.19 0.95 0.51 0.13 0.44 0.09 0.78 0.35 0.95
1999 0.19 0.42 0.10 a 0.59 0.83 0.27 0.22 0.70 0.10 0.05 0.25 0.22 0.83
2000 0.64 0.22 0.68 0.23 0.47 0.62 0.21 0.61 0.26 0.51 0.11 0.13 a 0.68
2001 0.04 b 0.15 0.19 a 0.48 a 0.29 0.55 0.47 0.15 0.22 0.26 0.26 0.39 e 0.55
2002 0.22 0.13 a 0.42 0.70 0.51 0.42 0.25 0.24 0.60 0.17 0.36 a 0.05 b 0.70
2003 0.20 0.15 0.43 c 0.45 0.47 0.44 0.82 0.25 0.22 0.52 9999.00 z 0.29 0.82
2004 0.28 0.15 0.13 0.14 0.54 0.73 0.71 0.18 0.42 0.36 a 0.07 0.19 0.73
2005 0.65 b 0.11 a 0.21 a 0.22 0.40 0.59 0.45 0.39 0.72 0.80 0.38 c 0.22 a 0.80
2006 0.47 d 9999.00 z 0.25 a 0.56 0.94 0.44 0.70 0.10 0.44 0.71 0.55 0.14 0.94
2007 0.34 0.16 0.25 0.33 0.23 1.12 i 0.35 0.50 0.40 0.94 0.29 0.20 1.12
2008 0.26 0.17 a 0.35 0.15 0.58 0.40 1.30 0.40 0.54 0.62 0.20 0.25 1.30
2009 0.26 0.26 0.27 0.79 0.29 0.31 0.33 0.51 0.18 0.70 a 0.14 0.04 a 0.79
2010 0.11 0.04 0.37 0.74 0.35 0.42 0.33 0.68 0.10 0.58 1.84 0.50 b 1.84
2011 0.60 0.17 0.34 0.24 0.47 0.60 0.26 0.15 0.07 0.30 a 0.37 0.11 0.60
2012 0.33 0.14 0.47 0.37 0.70 0.66 0.16 0.18 0.29 0.32 0.41 0.44 0.70
2013 0.30 0.12 0.70 a 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 0.70
Period of Record Statistics
MEAN 0.34 0.24 0.39 0.41 0.58 0.58 0.45 0.45 0.42 0.41 0.38 0.31 0.97
S.D. 0.28 0.14 0.28 0.21 0.29 0.29 0.28 0.33 0.26 0.24 0.26 0.25 0.37
SKEW 2.13 1.49 3.26 0.53 1.38 1.35 1.45 2.66 0.82 0.60 2.45 3.24 1.25
MAX 1.60 0.70 2.10 1.00 1.86 1.55 1.40 2.25 1.25 1.16 1.84 1.70 2.10
MIN 0.04 0.04 0.10 0.02 0.07 0.12 0.12 0.09 0.04 0.00 0.03 0.02 0.50
NO YRS 76 74 81 79 76 78 79 78 77 77 77 77 51