YELLOWSTONE PARK, WYOMING

Monthly Total Precipitation (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 1.82 1.12 2.30 0.00 z 0.00 z 0.00 z 0.99 1.75 0.71 0.89 0.15 1.35 w 9.73
1895 4.76 0.07 w 2.79 0.61 1.68 2.71 0.57 0.73 0.43 0.44 1.30 1.29 17.31
1896 2.21 2.07 u 2.62 1.29 3.85 0.73 2.09 0.37 1.10 0.06 3.92 0.46 18.70
1897 0.00 z 0.83 u 1.08 1.21 1.55 2.34 1.11 0.57 0.31 1.72 2.98 0.80 13.67
1898 0.31 1.21 v 1.40 0.95 1.95 2.67 1.15 2.05 0.90 2.25 1.55 0.67 15.85
1899 4.21 3.40 3.00 2.30 2.52 1.90 1.42 2.23 0.90 2.03 v 0.04 2.59 v 21.92
1900 0.90 x 1.66 v 3.13 1.94 u 2.42 1.17 0.80 0.28 0.86 1.22 1.17 1.18 12.23
1901 2.28 0.70 m 1.46 1.08 2.72 1.49 o 0.80 1.65 2.85 0.90 1.25 2.25 l 14.99
1902 0.96 0.61 2.46 2.14 1.59 1.87 2.29 0.61 0.90 0.20 2.35 0.85 16.83
1903 0.60 0.25 0.85 0.80 0.65 0.90 0.55 0.45 0.60 0.50 1.40 1.30 8.85
1904 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
1905 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
1906 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
1907 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
1908 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 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
1940 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
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.18 2.00 3.47 2.02 0.97 1.46 1.32 13.42
1942 0.89 0.69 0.40 1.09 4.25 1.23 0.55 0.42 1.23 0.64 2.61 1.15 15.15
1943 0.00 z 0.90 1.65 1.92 2.43 2.85 0.25 0.64 0.70 1.83 0.60 0.58 14.35
1944 0.33 1.42 1.24 0.53 2.40 5.20 0.94 0.61 1.94 0.89 1.67 0.34 17.51
1945 0.38 0.56 1.12 0.67 2.78 5.79 0.59 2.48 1.92 0.47 1.59 1.15 19.50
1946 1.13 0.94 2.56 0.36 2.29 1.02 1.71 0.68 1.90 3.39 1.64 1.30 18.92
1947 0.71 1.02 1.40 1.15 1.80 4.79 0.76 2.14 2.73 0.78 1.58 1.48 20.34
1948 1.54 1.21 1.46 1.17 1.52 3.25 0.87 1.47 1.16 w 0.30 1.89 h 2.01 14.80
1949 1.15 1.76 a 0.86 0.76 1.39 2.08 a 0.50 0.51 a 2.20 1.89 0.81 1.03 14.94
1950 2.36 0.65 1.60 1.77 1.32 1.78 3.14 0.89 2.25 1.40 a 1.29 0.83 19.28
1951 0.99 0.52 1.85 1.34 e 1.77 1.60 1.75 2.51 0.45 2.55 0.59 1.59 17.51
1952 1.48 0.88 1.69 0.31 2.21 2.28 2.16 1.75 0.21 0.00 0.45 0.94 14.36
1953 1.12 1.22 0.96 1.70 2.78 1.25 0.00 z 0.33 0.55 0.16 0.47 1.44 11.98
1954 1.99 0.59 1.43 1.92 1.30 3.62 0.75 a 0.95 0.44 0.58 0.55 1.05 15.17
1955 0.65 0.77 1.71 0.57 2.14 2.33 1.36 0.62 0.92 1.34 2.51 4.06 18.98
1956 1.44 0.58 0.70 2.77 1.49 1.57 1.06 1.18 0.39 0.87 0.74 1.39 14.18
1957 1.23 0.94 1.30 1.44 2.47 1.36 1.47 1.48 0.61 0.72 1.07 0.84 14.93
1958 0.36 0.50 1.37 2.32 1.93 3.65 1.22 2.28 1.25 0.60 1.40 0.80 17.68
1959 1.06 1.64 0.70 1.53 2.38 a 2.68 0.72 0.69 1.26 1.02 0.61 0.35 14.64
1960 0.53 0.83 0.69 1.99 1.80 1.30 0.25 1.68 0.20 0.57 1.78 0.45 12.07
1961 0.09 1.26 0.72 0.96 0.90 0.43 1.23 2.16 3.66 1.99 1.06 1.09 15.55
1962 2.03 1.78 0.87 0.70 2.19 2.00 1.92 1.03 1.19 0.48 2.02 0.59 16.80
1963 1.70 0.84 1.12 1.75 2.92 2.85 0.55 1.31 3.01 0.72 1.27 0.52 18.56
1964 1.48 0.62 1.01 1.69 1.14 3.32 1.13 1.31 0.14 1.68 1.00 3.20 17.72
1965 1.49 0.80 0.85 0.95 1.86 2.85 1.79 1.04 1.52 0.27 0.90 1.00 15.32
1966 0.90 0.35 0.70 1.10 1.56 1.83 0.38 0.87 0.00 z 0.00 z 0.00 z 0.00 z 7.69
1967 0.00 z 1.00 1.66 1.35 1.92 2.57 1.86 0.34 0.65 2.53 1.27 1.91 17.06
1968 3.81 0.29 0.33 0.75 1.93 3.96 0.39 3.87 2.07 1.24 1.09 0.53 20.26
1969 3.46 1.60 0.12 0.63 1.23 2.84 1.14 1.07 1.18 1.18 0.46 1.13 16.04
1970 1.06 0.36 1.29 0.92 1.87 1.94 1.49 0.69 1.37 0.55 2.23 1.52 15.29
1971 1.41 a 1.12 0.59 0.23 0.00 z 1.52 0.73 1.62 1.55 0.65 1.21 1.45 12.08
1972 3.24 0.78 0.80 1.71 1.56 2.64 1.47 2.24 3.17 1.68 0.29 0.70 20.28
1973 0.25 0.39 0.26 0.93 2.01 1.39 1.31 1.59 2.01 0.68 0.00 z 0.41 11.23
1974 0.74 0.40 3.05 0.28 2.31 0.84 0.90 1.75 0.17 0.74 0.30 1.04 12.52
1975 1.04 0.52 1.52 1.76 1.34 1.44 1.75 0.85 0.54 1.57 1.25 0.87 14.45
1976 0.21 0.53 1.31 0.79 2.68 3.83 1.83 2.02 2.47 0.80 0.41 0.12 17.00
1977 0.71 0.16 0.85 0.13 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.24 0.00 z 0.80 b 2.89
1978 0.00 z 0.00 z 0.00 z 0.97 2.12 1.04 1.17 0.62 1.14 0.28 1.14 1.91 10.39
1979 1.19 0.48 2.41 0.07 0.12 1.13 1.31 2.35 0.05 1.09 0.54 0.34 11.08
1980 1.23 1.09 0.92 0.41 3.03 1.35 1.80 2.66 1.77 0.49 1.16 0.66 16.57
1981 0.05 0.36 0.41 0.60 2.83 c 2.47 0.00 z 0.00 z 0.00 z 1.62 1.25 1.56 11.15
1982 1.61 j 1.03 1.94 d 2.11 c 1.48 l 2.20 1.39 4.21 a 1.44 0.00 z 1.08 0.67 d 16.07
1983 0.19 a 0.49 a 1.08 a 0.27 a 0.57 a 1.70 3.18 0.00 z 2.34 e 0.00 z 1.51 c 0.56 c 11.89
1984 0.08 a 0.31 a 0.57 1.15 a 1.68 b 1.62 3.50 1.62 0.00 z 0.00 z 0.96 a 0.00 z 11.49
1985 0.54 0.69 0.82 c 0.53 1.86 h 1.09 1.89 0.00 z 1.39 0.71 1.74 a 0.38 9.78
1986 0.40 c 0.86 c 1.27 a 1.81 0.94 1.59 2.50 1.00 1.87 0.66 0.96 0.02 13.88
1987 0.32 0.35 0.63 0.53 2.87 1.78 3.57 1.63 0.18 0.00 0.39 0.79 13.04
1988 0.37 0.35 0.64 1.94 3.61 0.49 0.93 0.14 0.40 0.29 1.54 0.45 11.15
1989 1.03 0.59 1.43 1.00 2.99 2.09 1.23 1.41 0.34 2.33 0.63 0.78 15.85
1990 0.79 0.43 0.46 0.88 2.58 1.74 0.37 0.99 0.79 1.62 0.43 0.74 b 11.82
1991 0.35 0.31 1.07 2.08 3.66 0.51 0.80 0.27 2.46 2.11 0.77 0.43 a 14.82
1992 0.15 0.34 0.36 1.54 1.75 4.18 1.80 0.42 2.15 1.40 0.42 1.13 a 15.64
1993 1.44 0.71 0.77 2.73 2.57 3.54 2.31 1.21 0.14 0.69 0.87 a 0.21 b 17.19
1994 0.52 1.10 0.78 0.97 1.41 2.85 1.50 0.58 0.76 1.43 0.71 1.38 a 13.99
1995 0.63 0.77 2.62 1.56 0.97 2.12 2.00 1.31 1.03 1.05 0.92 0.85 15.83
1996 1.45 b 0.59 b 2.13 a 1.16 3.02 0.61 0.93 0.46 1.05 0.47 1.73 d 1.46 a 15.06
1997 1.62 d 0.31 a 0.70 0.93 a 1.32 2.19 3.03 2.06 2.68 1.71 0.36 0.20 b 17.11
1998 1.33 a 0.27 b 0.69 0.49 0.61 4.76 0.86 0.19 1.68 0.29 1.96 0.66 13.79
1999 1.07 1.31 0.31 a 1.54 2.45 1.59 0.51 3.05 0.14 0.18 0.59 0.95 13.69
2000 0.95 0.62 1.26 0.74 2.24 2.07 0.41 1.09 1.25 1.46 0.35 0.70 a 13.14
2001 0.08 b 0.25 0.59 a 1.34 a 1.48 1.53 1.44 0.20 0.33 0.82 0.80 0.43 e 9.29
2002 0.67 0.36 a 0.88 1.42 1.85 1.81 0.45 0.59 0.96 0.88 0.84 a 0.19 b 10.90
2003 0.70 0.75 1.38 c 2.07 1.76 0.73 0.99 0.86 0.90 1.12 0.00 z 1.42 12.68
2004 0.59 0.67 0.36 0.40 2.38 1.94 2.00 0.88 1.74 1.25 a 0.16 0.51 12.88
2005 1.32 b 0.35 a 0.71 a 0.72 1.69 3.31 1.12 2.23 1.11 1.16 2.09 c 0.91 a 16.72
2006 0.76 d 0.00 z 0.90 a 1.51 1.50 2.01 1.95 0.41 1.15 2.66 1.10 0.49 14.44
2007 0.70 1.10 0.36 1.33 0.50 1.28 i 0.64 1.60 1.13 1.91 0.46 0.63 10.36
2008 1.34 0.57 a 1.19 0.72 1.96 1.31 2.02 0.93 0.84 1.32 1.09 1.26 14.55
2009 0.80 0.58 1.71 2.42 0.85 2.09 1.54 1.29 0.42 2.21 a 0.68 0.15 a 14.74
2010 0.49 0.07 0.88 1.89 1.79 1.61 0.52 1.75 0.15 0.89 3.78 1.35 b 15.17
2011 1.21 0.65 1.13 1.16 2.54 1.05 0.67 0.43 0.15 0.87 a 1.01 0.28 11.15
2012 1.17 0.76 1.73 1.91 2.31 0.92 0.56 0.33 0.57 0.93 1.24 1.89 14.32
2013 1.05 0.36 1.27 a 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 2.68
Period of Record Statistics
MEAN 1.14 0.75 1.22 1.21 1.98 2.12 1.32 1.28 1.19 1.07 1.16 0.96 15.25
S.D. 0.93 0.49 0.71 0.64 0.79 1.12 0.76 0.87 0.84 0.71 0.75 0.64 2.68
SKEW 1.85 2.40 0.95 0.37 0.27 1.06 0.96 1.09 0.76 0.85 1.41 1.99 -0.15
MAX 4.76 3.40 3.13 2.77 4.25 5.79 3.57 4.21 3.66 3.39 3.92 4.06 20.34
MIN 0.05 0.07 0.12 0.07 0.12 0.43 0.25 0.14 0.05 0.00 0.04 0.02 8.85
NO YRS 76 74 81 79 76 78 79 78 77 77 77 77 56