Precipitation annual maximum series (inches) Station ID: 24-4368 Station name: ILIAD State: MT Latitude (decimal degrees): 47.8056 Longitude (decimal degrees): -109.8100 Elevation (feet): 2965 Duration: 1 hour 05/21/1948 1.59 07/06/1949 0.85 08/05/1950 0.29 08/29/1951 0.50 05/02/1952 0.37 06/09/1953 0.35 08/05/1954 0.41 07/25/1955 0.45 06/15/1956 0.70 08/17/1957 0.29 07/08/1958 0.35 05/01/1959 0.50 08/01/1960 0.91 07/06/1961 0.41 06/12/1962 0.59 07/09/1963 0.54 07/02/1964 0.39 08/14/1968 1.25 06/25/1969 0.29 06/12/1970 0.31 05/18/1982 0.53 07/18/1983 0.38 07/15/1986 0.36 06/29/1988 0.27 06/28/1993 0.71 06/07/1994 0.35 06/05/1995 0.80 05/16/1996 0.27 06/28/1997 0.53 07/03/1998 1.06 06/02/1999 0.44 09/05/2000 0.62 07/21/2001 0.80 Duration: 2 hours 05/21/1948 1.71 07/06/1949 1.17 07/30/1950 0.47 08/29/1951 0.56 05/02/1952 0.40 08/04/1953 0.38 08/05/1954 0.50 07/25/1955 0.72 06/15/1956 0.80 06/16/1957 0.33 07/08/1958 0.69 05/01/1959 0.75 08/01/1960 0.98 07/06/1961 0.61 07/13/1962 0.69 08/28/1963 0.67 05/04/1964 0.50 08/14/1968 1.63 05/27/1969 0.57 06/12/1970 0.51 05/18/1982 0.77 07/09/1983 0.48 07/15/1986 0.68 07/03/1988 0.38 06/28/1993 0.76 06/07/1994 0.57 06/05/1995 0.86 06/22/1996 0.48 06/28/1997 0.95 07/03/1998 1.24 06/02/1999 0.76 09/05/2000 0.67 Duration: 3 hours 05/21/1948 1.79 07/06/1949 1.19 07/30/1950 0.62 08/29/1951 0.66 06/21/1952 0.41 06/03/1953 0.47 08/05/1954 0.52 07/25/1955 0.92 06/15/1956 0.82 06/16/1957 0.41 07/08/1958 0.79 05/01/1959 0.95 08/01/1960 1.00 07/06/1961 0.74 07/13/1962 0.90 08/28/1963 1.00 05/04/1964 0.65 08/14/1968 1.80 05/27/1969 0.85 06/12/1970 0.62 05/18/1982 0.79 07/09/1983 0.66 07/15/1986 0.73 09/17/1988 0.49 06/01/1993 0.97 06/07/1994 0.58 06/06/1995 1.07 06/22/1996 0.49 06/06/1997 1.07 07/03/1998 1.36 06/02/1999 0.78 09/05/2000 0.97 Duration: 6 hours 05/21/1948 1.91 07/06/1949 1.20 07/30/1950 0.95 08/29/1951 0.79 06/05/1952 0.48 05/29/1953 0.60 06/01/1954 0.83 07/25/1955 0.93 06/15/1956 0.82 06/08/1957 0.57 07/08/1958 0.80 05/01/1959 1.00 08/01/1960 1.01 05/30/1961 0.93 07/13/1962 1.31 08/28/1963 1.01 05/03/1964 0.96 08/14/1968 2.35 05/27/1969 0.86 06/12/1970 0.81 05/18/1982 0.84 07/10/1983 1.04 08/31/1986 0.86 09/17/1988 0.78 06/01/1993 1.67 06/07/1994 0.69 06/06/1995 1.27 10/01/1995 0.59 05/25/1997 1.18 07/03/1998 1.39 06/02/1999 1.08 09/05/2000 1.08 Duration: 12 hours 05/21/1948 1.91 07/06/1949 1.20 07/30/1950 1.52 08/29/1951 0.92 06/05/1952 0.50 05/29/1953 1.02 06/01/1954 1.06 07/25/1955 0.93 06/15/1956 0.89 05/20/1957 0.76 07/08/1958 0.80 05/01/1959 1.01 11/24/1959 1.11 05/30/1961 1.29 07/13/1962 1.39 08/28/1963 1.01 05/04/1964 1.22 08/14/1968 3.03 05/27/1969 0.86 05/11/1970 1.24 05/18/1982 0.87 07/09/1983 1.71 09/24/1986 1.07 09/17/1988 1.19 06/01/1993 2.28 06/06/1994 0.89 06/06/1995 1.68 10/01/1995 0.69 05/25/1997 1.88 06/27/1998 1.42 06/02/1999 1.19 09/05/2000 1.19 Duration: 1 day 05/17/1949 1.09 07/30/1950 1.41 08/29/1951 0.81 06/05/1952 0.50 05/29/1953 1.31 06/01/1954 1.16 07/25/1955 0.79 06/14/1956 0.99 09/17/1957 0.99 07/08/1958 0.68 06/26/1959 1.03 11/24/1959 1.20 05/31/1961 2.15 07/13/1962 1.65 08/28/1963 0.85 05/04/1964 1.97 06/16/1965 1.70 07/02/1966 0.74 06/07/1967 1.05 08/14/1968 3.52 06/25/1969 0.99 05/11/1970 1.07 01/30/1971 0.60 08/02/1972 1.06 06/02/1973 0.97 06/20/1974 3.00 06/19/1975 1.75 06/06/1976 0.90 05/15/1977 1.20 05/25/1980 0.97 05/17/1981 0.96 09/26/1982 0.84 07/10/1983 2.37 08/31/1984 0.70 08/16/1985 1.78 09/25/1986 1.53 03/22/1987 0.70 09/17/1988 1.37 05/24/1990 2.13 04/28/1991 1.90 07/09/1992 0.93 06/01/1993 2.48 06/06/1994 0.94 06/05/1995 2.39 01/03/1996 0.78 05/25/1997 2.22 07/03/1998 1.62 06/02/1999 1.11 09/05/2000 1.03 07/22/2001 0.83 Duration: 2 days 07/05/1949 1.37 07/29/1950 1.58 08/29/1951 0.99 05/01/1952 0.86 05/29/1953 1.60 05/31/1954 1.46 10/22/1954 1.04 06/14/1956 1.20 09/17/1957 1.18 07/08/1958 0.75 06/26/1959 1.28 11/24/1959 1.32 05/31/1961 2.40 07/13/1962 1.84 08/28/1963 0.94 05/02/1964 2.67 06/25/1965 2.05 06/02/1966 0.85 06/07/1967 1.16 08/14/1968 4.20 06/25/1969 1.39 05/11/1970 1.18 01/30/1971 0.70 08/02/1972 1.17 06/01/1973 1.13 06/19/1974 3.34 06/19/1975 1.93 06/05/1976 1.00 05/15/1977 1.32 05/24/1980 1.19 05/07/1981 1.47 05/29/1982 1.83 07/10/1983 2.64 08/31/1984 0.77 08/16/1985 1.96 09/25/1986 1.71 03/22/1987 0.77 09/16/1988 1.60 05/24/1990 2.35 04/28/1991 2.10 08/22/1992 1.53 06/01/1993 2.74 06/06/1994 1.04 06/05/1995 2.83 08/28/1996 1.00 05/24/1997 2.74 07/03/1998 2.09 06/02/1999 1.51 09/04/2000 1.32 07/21/2001 1.12 Duration: 3 days 07/05/1949 1.40 07/27/1950 1.74 08/29/1951 1.01 05/01/1952 0.92 05/27/1953 1.68 05/31/1954 1.51 10/22/1954 1.06 06/14/1956 1.22 09/17/1957 1.20 10/19/1957 0.89 06/26/1959 1.38 11/24/1959 1.35 05/29/1961 2.47 07/12/1962 1.89 08/23/1963 1.17 05/02/1964 3.97 06/23/1965 2.11 06/30/1966 1.26 09/11/1967 1.35 08/14/1968 4.28 06/25/1969 1.54 05/11/1970 1.20 01/30/1971 0.71 08/02/1972 1.19 06/01/1973 1.15 06/19/1974 3.44 06/19/1975 1.97 06/22/1976 1.25 05/15/1977 1.91 05/23/1980 1.22 05/06/1981 1.73 05/28/1982 2.74 07/07/1983 2.72 05/25/1984 0.79 08/16/1985 2.00 05/20/1986 1.78 03/22/1987 0.79 09/16/1988 1.63 05/24/1990 2.40 04/28/1991 2.14 08/22/1992 1.56 06/01/1993 2.79 04/23/1994 1.49 06/03/1995 3.37 05/15/1996 1.02 05/23/1997 3.08 07/03/1998 2.15 06/02/1999 1.54 09/04/2000 1.35 07/20/2001 1.29 Duration: 4 days 05/17/1949 1.42 07/27/1950 1.79 08/29/1951 1.36 05/02/1952 0.95 05/29/1953 1.80 05/30/1954 1.57 10/22/1954 1.07 06/14/1956 1.23 09/17/1957 1.50 10/19/1957 1.02 06/26/1959 1.39 11/24/1959 1.36 05/29/1961 2.52 07/13/1962 1.93 06/20/1963 1.19 05/01/1964 4.07 06/23/1965 2.15 06/29/1966 1.52 09/10/1967 1.37 08/14/1968 4.32 06/25/1969 1.61 05/11/1970 1.22 05/31/1971 0.92 07/31/1972 1.20 06/15/1973 1.45 06/19/1974 3.51 04/26/1975 1.99 06/22/1976 1.30 05/15/1977 1.95 06/23/1980 1.28 05/05/1981 2.03 05/28/1982 2.79 07/07/1983 2.77 05/25/1984 0.80 08/16/1985 2.02 05/20/1986 1.82 06/18/1987 0.88 09/16/1988 1.65 05/24/1990 2.42 04/28/1991 2.16 06/12/1992 1.57 06/01/1993 2.82 04/22/1994 1.99 06/03/1995 3.50 05/01/1996 1.11 05/21/1997 3.20 07/03/1998 2.19 06/02/1999 1.65 09/02/2000 1.46 07/19/2001 1.35 Duration: 7 days 07/05/1949 1.85 07/30/1950 2.34 07/04/1951 1.43 05/01/1952 1.09 05/24/1953 2.99 05/27/1954 1.71 05/15/1955 1.41 06/14/1956 1.25 09/17/1957 1.52 10/18/1957 1.37 06/20/1959 1.52 04/18/1960 1.57 05/29/1961 2.57 07/13/1962 2.06 06/20/1963 1.50 05/01/1964 4.50 06/12/1965 2.48 06/29/1966 1.53 06/07/1967 1.85 08/11/1968 4.46 06/22/1969 1.89 05/07/1970 1.80 01/25/1971 1.10 07/13/1972 1.37 06/13/1973 1.76 06/19/1974 3.58 06/13/1975 2.45 06/19/1976 1.40 05/15/1977 2.03 06/23/1980 1.29 05/16/1981 2.31 05/26/1982 2.94 07/04/1983 3.11 06/05/1984 0.98 08/12/1985 3.34 05/05/1986 2.77 03/18/1987 1.20 06/27/1988 1.76 05/24/1990 2.49 04/28/1991 2.26 06/12/1992 1.71 06/01/1993 3.33 04/22/1994 2.03 06/03/1995 3.63 05/23/1996 1.23 05/21/1997 3.73 06/27/1998 2.94 06/03/1999 2.12 07/02/2000 1.57 07/16/2001 2.02 Duration: 10 days 07/06/1949 1.97 07/28/1950 2.61 08/24/1951 1.61 04/29/1952 1.18 05/25/1953 3.49 06/02/1954 2.34 05/14/1955 1.56 06/15/1956 1.28 06/09/1957 1.69 05/30/1958 1.77 05/17/1959 1.74 04/19/1960 1.62 05/24/1961 2.64 05/13/1962 2.66 06/20/1963 1.89 05/01/1964 4.64 06/16/1965 3.34 06/24/1966 2.04 06/07/1967 2.25 08/14/1968 4.67 06/20/1969 2.19 05/05/1970 1.85 01/25/1971 1.12 07/13/1972 1.60 05/25/1973 2.11 05/13/1974 4.65 04/29/1975 2.53 06/16/1976 2.18 05/08/1977 2.18 06/23/1980 1.32 05/16/1981 2.36 05/28/1982 3.03 07/01/1983 3.42 08/31/1984 1.40 08/08/1985 3.59 05/05/1986 2.85 03/13/1987 1.60 09/11/1988 2.06 05/24/1990 2.92 04/28/1991 2.31 06/12/1992 1.74 06/01/1993 3.53 04/22/1994 2.09 06/02/1995 3.74 05/15/1996 1.85 05/22/1997 3.84 06/25/1998 3.57 05/30/1999 2.43 07/01/2000 1.75 07/13/2001 2.43 Duration: 20 days 06/29/1949 2.20 07/28/1950 3.20 05/31/1951 1.88 04/29/1952 1.18 05/20/1953 5.54 05/28/1954 2.97 05/14/1955 2.13 05/28/1956 1.91 09/18/1957 2.27 05/30/1958 2.85 05/02/1959 2.99 11/12/1959 2.80 05/29/1961 2.92 05/07/1962 3.68 06/20/1963 2.63 04/21/1964 4.84 06/12/1965 4.65 06/25/1966 2.73 05/30/1967 2.85 08/11/1968 4.87 06/19/1969 3.69 04/23/1970 2.62 05/30/1971 1.56 07/14/1972 2.78 06/01/1973 2.99 05/13/1974 5.10 06/13/1975 3.87 06/05/1976 3.58 05/07/1977 2.88 05/24/1980 2.11 05/05/1981 4.34 05/15/1982 4.54 06/28/1983 3.93 05/25/1984 1.77 08/03/1985 4.76 05/05/1986 4.55 03/13/1987 1.60 09/11/1988 2.17 05/15/1990 3.39 04/28/1991 3.22 06/30/1992 2.43 05/26/1993 4.69 04/06/1994 2.29 06/03/1995 4.30 05/10/1996 2.64 05/22/1997 5.98 06/15/1998 4.30 05/21/1999 2.85 06/20/2000 2.15 07/10/2001 2.83 Duration: 30 days 06/29/1949 2.82 07/27/1950 3.61 05/29/1951 2.43 05/20/1953 6.35 05/31/1954 3.35 05/02/1955 2.48 05/27/1956 2.44 05/20/1957 2.88 05/30/1958 3.37 05/02/1959 3.52 10/29/1959 4.10 05/31/1961 3.04 05/19/1962 4.12 06/20/1963 2.90 05/01/1964 5.00 05/29/1965 5.40 06/20/1966 3.54 09/10/1967 3.14 08/11/1968 5.17 06/19/1969 4.05 04/15/1970 2.91 05/30/1971 2.09 07/18/1972 3.32 05/21/1973 4.07 05/13/1974 5.12 06/08/1975 4.92 05/28/1976 4.01 05/15/1977 3.24 05/25/1980 2.82 05/05/1981 4.93 05/09/1982 5.57 06/11/1983 4.65 08/31/1984 2.11 08/03/1985 5.28 08/30/1986 5.29 05/23/1987 1.72 06/13/1988 2.56 05/24/1990 4.45 04/28/1991 3.79 06/12/1992 3.71 06/01/1993 6.32 05/17/1994 3.05 06/06/1995 5.34 05/01/1996 3.85 05/22/1997 6.19 06/08/1998 5.85 05/10/1999 3.10 06/11/2000 3.33 06/26/2001 3.19 Duration: 45 days 06/16/1949 2.99 06/24/1950 4.51 05/29/1951 3.99 04/29/1952 2.08 05/20/1953 7.00 05/28/1954 3.82 04/14/1955 3.56 05/27/1956 3.32 05/20/1957 3.59 05/30/1958 4.62 05/17/1959 4.74 10/21/1959 4.46 05/29/1961 4.26 05/08/1962 6.05 06/20/1963 3.15 05/02/1964 6.23 05/29/1965 6.02 05/31/1966 4.83 05/09/1967 3.64 08/11/1968 7.29 05/25/1969 4.15 04/29/1970 3.76 05/17/1971 2.59 07/13/1972 4.36 05/21/1973 4.52 05/13/1974 8.42 05/06/1975 5.78 05/30/1976 5.11 05/07/1977 3.75 05/23/1980 3.63 05/05/1981 5.94 05/19/1982 5.64 06/10/1983 5.14 08/17/1984 2.76 08/03/1985 7.26 08/30/1986 5.69 05/15/1987 2.00 09/11/1988 3.05 05/24/1990 5.80 04/28/1991 4.84 06/12/1992 4.63 06/01/1993 8.62 05/17/1994 3.93 06/02/1995 6.99 04/11/1996 4.24 05/22/1997 7.26 05/21/1998 7.43 04/28/1999 4.85 05/30/2000 3.93 06/09/2001 4.12 Duration: 60 days 05/17/1949 4.38 06/01/1950 5.34 05/12/1951 4.22 05/02/1952 2.71 05/20/1953 7.22 04/15/1954 4.25 04/03/1955 4.64 05/27/1956 3.59 08/28/1957 4.67 05/30/1958 5.48 05/02/1959 6.25 09/28/1959 5.41 05/31/1961 4.80 05/21/1962 6.69 05/11/1963 3.75 04/21/1964 6.83 05/14/1965 6.54 05/17/1966 5.31 04/27/1967 4.85 07/30/1968 7.35 05/17/1969 5.11 04/20/1970 4.72 04/17/1971 3.12 06/21/1972 4.81 05/21/1973 4.52 05/13/1974 9.41 04/23/1975 8.05 05/10/1976 5.56 05/15/1977 4.11 05/23/1980 4.05 04/20/1981 6.39 05/09/1982 7.28 06/10/1983 5.29 08/02/1984 2.98 08/03/1985 8.28 04/12/1986 6.10 05/23/1987 2.65 05/06/1988 3.10 05/08/1990 6.42 04/28/1991 6.73 06/12/1992 4.85 05/29/1993 10.29 04/22/1994 5.37 05/06/1995 8.11 05/01/1996 5.16 05/22/1997 8.65 05/14/1998 8.44 04/10/1999 5.33 05/11/2000 4.76 06/03/2001 5.03