Precipitation annual maximum series (inches) Station ID: 24-6238 Station name: OPHEIM 12 SSE State: MT Latitude (decimal degrees): 48.6956 Longitude (decimal degrees): -106.3153 Elevation (feet): 2936 Duration: 1 day 08/25/1944 1.22 08/09/1945 1.10 07/09/1946 2.46 06/04/1947 1.43 08/06/1948 1.34 07/20/1949 1.02 06/25/1950 0.93 06/24/1951 0.76 07/19/1952 1.00 06/30/1953 0.83 08/21/1954 2.01 07/28/1955 1.14 06/22/1956 1.95 09/04/1957 1.48 06/18/1958 1.12 06/26/1959 1.30 08/04/1960 2.22 09/02/1961 0.72 07/14/1962 1.48 08/23/1963 1.90 06/18/1964 1.13 05/06/1965 1.41 07/13/1966 1.73 09/12/1967 1.25 08/15/1968 2.05 07/07/1969 1.70 04/29/1970 2.01 07/11/1971 0.96 06/09/1972 2.24 07/01/1973 1.05 05/18/1974 1.40 05/07/1975 1.31 07/02/1976 1.97 06/12/1977 1.38 09/11/1978 3.41 05/06/1979 1.51 08/15/1980 0.83 06/01/1981 1.26 10/12/1981 1.37 07/10/1983 2.38 06/20/1984 0.78 05/30/1985 1.22 05/05/1986 0.96 09/10/1987 1.01 05/07/1988 0.90 08/25/1989 1.03 07/26/1990 1.17 06/28/1991 2.15 06/13/1992 1.37 07/04/1993 1.92 06/07/1994 1.88 06/23/1995 1.24 06/11/1996 1.06 07/18/1997 1.92 06/27/1998 0.57 05/29/1999 1.05 07/09/2000 1.36 07/10/2001 1.76 12/01/2001 1.50 07/08/2003 0.99 06/10/2004 1.18 06/17/2005 1.99 04/17/2006 0.91 05/23/2007 1.21 06/03/2008 0.84 08/14/2009 1.00 05/24/2010 1.47 06/07/2011 3.03 09/07/2013 1.87 06/26/2014 1.91 07/27/2015 2.33 05/09/2016 2.15 10/31/2016 1.05 09/20/2018 0.85 09/11/2019 1.40 07/06/2020 0.76 08/22/2021 0.84 06/19/2022 1.00 Duration: 2 days 06/26/1944 1.35 08/09/1945 1.21 07/08/1946 2.82 06/03/1947 2.39 06/04/1948 1.74 07/20/1949 1.13 06/07/1950 1.29 08/24/1951 0.84 07/19/1952 2.00 06/29/1953 1.10 08/21/1954 2.22 07/28/1955 1.45 06/21/1956 2.38 04/23/1957 1.73 06/18/1958 1.24 06/26/1959 2.00 08/04/1960 2.45 09/01/1961 0.79 07/13/1962 2.26 08/23/1963 2.10 06/18/1964 2.18 05/05/1965 2.14 08/19/1966 1.91 09/12/1967 1.46 08/15/1968 2.26 07/06/1969 1.95 04/28/1970 3.04 07/11/1971 1.06 06/08/1972 3.51 06/02/1973 1.16 07/07/1974 2.27 05/06/1975 1.45 07/02/1976 2.17 06/12/1977 1.52 09/11/1978 4.68 05/05/1979 1.67 06/27/1980 0.93 05/31/1981 1.56 05/19/1982 1.62 07/10/1983 2.63 06/05/1984 0.99 05/30/1985 1.35 09/19/1986 1.20 09/10/1987 1.11 07/05/1988 1.16 08/25/1989 1.14 07/25/1990 1.35 06/28/1991 2.37 06/13/1992 1.54 07/03/1993 2.62 06/07/1994 2.13 06/22/1995 2.41 09/17/1996 1.29 07/18/1997 2.12 06/26/1998 0.77 05/29/1999 1.24 05/31/2000 1.78 07/09/2001 1.94 12/01/2001 2.50 07/08/2003 1.09 06/10/2004 1.75 06/17/2005 2.20 04/16/2006 1.02 05/22/2007 1.34 10/05/2007 1.13 08/13/2009 1.25 05/24/2010 1.62 06/07/2011 3.34 05/26/2013 2.27 06/26/2014 2.11 07/27/2015 3.80 05/09/2016 2.70 10/31/2016 1.16 09/19/2018 0.96 06/27/2019 1.95 07/06/2020 1.32 08/22/2021 0.93 05/12/2022 1.52 07/30/2023 2.72 Duration: 3 days 06/25/1944 1.37 08/09/1945 1.28 07/08/1946 2.87 06/03/1947 3.32 06/04/1948 1.77 07/20/1949 1.15 06/07/1950 1.41 08/27/1951 1.06 07/19/1952 2.04 06/28/1953 1.12 08/15/1954 2.26 07/27/1955 1.55 06/21/1956 2.59 04/23/1957 1.83 06/18/1958 1.26 06/26/1959 2.29 08/02/1960 3.03 09/01/1961 0.81 07/13/1962 2.40 08/23/1963 2.53 06/18/1964 2.47 05/05/1965 2.18 08/19/1966 1.95 09/12/1967 1.82 08/15/1968 2.31 07/06/1969 1.99 04/28/1970 3.10 07/11/1971 1.08 06/08/1972 3.58 04/18/1973 1.30 07/06/1974 2.67 08/19/1975 1.50 07/02/1976 2.22 09/16/1977 1.55 09/11/1978 5.05 05/05/1979 1.70 06/27/1980 0.95 07/12/1981 1.91 05/19/1982 1.72 07/10/1983 2.68 06/18/1984 1.13 05/30/1985 1.40 07/03/1986 1.40 09/10/1987 1.14 07/04/1988 1.38 08/25/1989 1.16 07/25/1990 1.40 06/28/1991 2.48 06/13/1992 1.60 07/03/1993 3.11 06/07/1994 2.28 06/21/1995 3.24 09/17/1996 1.49 04/20/1997 2.16 07/02/1998 0.87 05/29/1999 1.26 05/31/2000 1.81 07/09/2001 1.98 12/01/2001 3.00 05/05/2003 1.26 06/10/2004 1.78 06/17/2005 2.24 09/15/2006 1.22 05/21/2007 1.83 10/05/2007 1.15 08/13/2009 1.27 05/22/2010 1.86 06/07/2011 3.41 05/25/2013 2.59 06/26/2014 2.15 07/27/2015 3.87 05/09/2016 2.91 10/31/2016 1.18 09/18/2018 1.18 06/27/2019 1.99 06/28/2020 1.44 08/20/2021 1.39 07/07/2022 1.78 07/30/2023 2.77 Duration: 4 days 06/25/1944 1.39 08/09/1945 1.29 07/08/1946 2.90 06/03/1947 3.66 06/04/1948 1.79 07/17/1949 1.16 06/07/1950 1.42 08/24/1951 1.20 07/17/1952 2.49 06/28/1953 1.13 08/14/1954 2.34 07/26/1955 1.71 06/21/1956 2.63 04/23/1957 1.85 06/18/1958 1.37 06/26/1959 2.31 08/02/1960 3.06 09/01/1961 0.82 07/13/1962 2.55 08/23/1963 3.08 06/18/1964 2.49 05/05/1965 2.20 08/19/1966 1.97 09/12/1967 1.91 08/15/1968 3.05 06/25/1969 2.70 04/28/1970 3.13 06/24/1971 1.18 06/08/1972 3.61 04/18/1973 1.33 05/18/1974 2.83 04/24/1975 1.76 07/02/1976 2.44 06/12/1977 1.59 09/11/1978 5.10 05/03/1979 1.72 06/27/1980 0.96 07/11/1981 2.14 05/27/1982 1.76 07/10/1983 2.70 06/18/1984 1.14 05/27/1985 1.65 07/03/1986 1.41 07/18/1987 1.27 07/04/1988 1.39 08/25/1989 1.57 07/25/1990 1.41 06/28/1991 2.57 06/13/1992 1.68 07/03/1993 3.14 06/05/1994 2.41 06/20/1995 3.27 09/15/1996 1.51 04/20/1997 2.18 07/02/1998 0.88 05/29/1999 1.50 05/31/2000 2.18 07/10/2001 2.15 12/01/2001 3.50 05/04/2003 1.52 06/10/2004 1.93 06/17/2005 2.26 09/15/2006 1.23 05/20/2007 2.36 06/10/2008 1.17 08/13/2009 1.38 05/22/2010 1.88 06/07/2011 3.44 05/24/2013 2.68 06/23/2014 2.17 07/27/2015 3.91 05/09/2016 2.94 10/02/2016 1.19 09/17/2018 1.65 09/09/2019 2.20 06/27/2020 1.56 08/20/2021 1.40 07/06/2022 1.94 Duration: 7 days 08/21/1944 1.40 08/03/1945 1.58 07/03/1946 3.25 06/03/1947 4.27 06/04/1948 2.07 06/07/1949 1.17 06/07/1950 1.93 08/24/1951 1.96 07/17/1952 2.66 05/24/1953 1.73 08/15/1954 4.07 07/24/1955 1.98 06/17/1956 3.27 08/29/1957 2.23 06/18/1958 1.41 06/22/1959 2.74 08/02/1960 3.09 09/01/1961 0.83 07/10/1962 2.68 08/20/1963 3.29 06/14/1964 2.67 06/13/1965 2.43 08/19/1966 1.98 09/11/1967 1.99 08/15/1968 3.17 06/22/1969 3.11 04/23/1970 3.16 05/30/1971 1.19 06/04/1972 3.83 04/14/1973 1.56 05/16/1974 2.95 08/19/1975 2.31 07/02/1976 2.57 06/12/1977 1.95 09/11/1978 5.15 05/05/1979 1.78 08/09/1980 1.34 07/11/1981 2.16 05/15/1982 2.13 07/10/1983 3.06 06/14/1984 1.40 05/27/1985 1.83 06/29/1986 2.12 07/17/1987 1.36 06/30/1988 1.90 08/25/1989 1.89 07/25/1990 1.43 06/28/1991 3.26 06/08/1992 1.77 07/03/1993 3.42 06/05/1994 2.56 06/21/1995 3.42 09/17/1996 2.10 04/20/1997 2.21 06/26/1998 1.36 05/29/1999 2.30 07/04/2000 3.06 07/10/2001 2.60 12/01/2001 5.00 05/03/2003 1.89 05/23/2004 1.98 06/13/2005 2.36 09/15/2006 1.31 05/20/2007 2.38 06/08/2008 1.48 07/07/2009 1.94 05/19/2010 2.68 06/07/2011 3.48 05/25/2013 3.78 06/26/2014 2.19 07/23/2015 3.95 05/09/2016 2.97 10/02/2016 1.23 09/17/2018 1.69 09/07/2019 2.84 06/24/2020 1.63 08/20/2021 1.42 07/03/2022 2.50 Duration: 10 days 06/26/1944 1.66 08/03/1945 1.76 07/03/1946 3.32 05/31/1947 4.68 06/04/1948 2.29 07/20/1949 1.46 09/08/1950 2.07 08/24/1951 2.18 07/11/1952 3.09 05/24/1953 1.97 08/13/1954 4.87 07/21/1955 2.02 06/17/1956 3.34 08/27/1957 2.36 06/18/1958 1.44 06/20/1959 3.33 08/02/1960 3.15 07/10/1962 2.80 08/20/1963 3.36 06/11/1964 3.40 06/13/1965 2.49 08/19/1966 2.02 09/11/1967 2.03 08/15/1968 3.27 06/28/1969 3.53 04/20/1970 3.22 05/28/1971 1.68 06/04/1972 3.91 05/26/1973 1.97 05/13/1974 3.70 08/19/1975 2.36 07/02/1976 2.94 09/16/1977 2.78 09/11/1978 6.13 05/03/1979 1.87 08/07/1980 1.41 07/11/1981 2.27 05/19/1982 3.33 07/10/1983 3.20 06/11/1984 1.73 05/25/1985 1.89 05/05/1986 2.51 09/10/1987 1.45 06/27/1988 2.27 08/25/1989 1.93 07/19/1990 1.78 06/22/1991 3.53 06/30/1992 2.04 06/29/1993 3.55 06/01/1994 2.89 06/18/1995 3.59 09/15/1996 2.32 04/20/1997 2.54 06/27/1998 1.79 05/29/1999 2.44 07/03/2000 3.36 07/09/2001 2.69 12/01/2001 5.10 05/04/2003 2.32 05/19/2004 2.29 06/17/2005 3.44 09/15/2006 1.70 05/20/2007 2.73 06/03/2008 2.32 07/07/2009 2.08 05/19/2010 2.87 05/30/2011 4.55 05/25/2013 5.05 06/17/2014 3.41 07/27/2015 4.03 07/07/2016 3.03 10/02/2016 1.28 09/17/2018 1.87 06/19/2019 3.38 06/28/2020 2.80 08/20/2021 1.75 07/02/2022 2.82 Duration: 20 days 06/11/1944 2.51 05/31/1945 1.80 06/22/1946 3.93 06/01/1947 6.41 05/22/1948 2.80 06/07/1949 2.05 06/07/1950 3.08 06/06/1951 3.20 07/05/1952 3.39 05/20/1953 3.27 08/04/1954 6.65 07/12/1955 2.95 06/14/1956 4.45 08/16/1957 2.73 05/30/1958 2.03 06/09/1959 4.44 08/02/1960 3.26 09/01/1961 1.26 07/02/1962 3.40 06/21/1963 3.94 06/08/1964 3.64 06/13/1965 3.83 06/24/1966 3.14 09/12/1967 2.22 08/15/1968 3.31 06/19/1969 6.00 04/23/1970 3.42 05/21/1971 2.18 05/21/1972 6.49 05/26/1973 2.26 05/13/1974 3.70 04/24/1975 4.08 06/22/1976 4.97 09/12/1977 3.63 08/31/1978 6.14 04/18/1979 2.51 08/03/1980 1.87 05/27/1981 2.66 05/10/1982 4.44 07/02/1983 3.66 06/05/1984 2.96 05/13/1985 2.20 09/09/1986 2.91 07/10/1987 2.14 06/24/1988 3.22 08/20/1989 2.23 07/14/1990 1.82 06/19/1991 4.78 06/30/1992 2.97 07/03/1993 6.09 05/19/1994 3.88 06/04/1995 5.00 06/03/1996 3.04 06/30/1997 3.29 06/17/1998 2.49 05/29/1999 2.83 05/31/2000 4.88 07/09/2001 3.35 11/25/2001 5.10 05/03/2003 2.73 05/23/2004 3.93 06/06/2005 5.25 09/15/2006 1.76 05/13/2007 3.91 05/25/2008 2.80 07/03/2009 2.22 05/19/2010 3.76 05/20/2011 6.97 05/26/2013 6.35 06/13/2014 3.73 07/27/2015 4.37 07/01/2016 3.99 09/21/2016 2.54 09/17/2018 2.66 06/14/2019 3.64 06/23/2020 3.04 08/06/2021 2.13 06/29/2022 3.32 Duration: 30 days 05/30/1944 3.36 05/31/1945 2.73 06/15/1946 4.44 05/22/1947 6.73 07/13/1948 3.58 05/30/1949 2.50 06/07/1950 3.10 06/06/1951 3.30 06/21/1952 5.27 05/20/1953 4.32 07/30/1954 7.18 07/03/1955 3.71 06/17/1956 4.76 08/06/1957 2.92 06/18/1958 2.83 06/07/1959 4.89 07/11/1960 3.60 07/13/1962 5.05 06/06/1963 4.49 06/08/1964 4.78 06/13/1965 5.27 06/22/1966 3.40 09/11/1967 3.78 08/15/1968 3.71 06/20/1969 7.28 04/14/1970 3.73 05/30/1971 2.87 05/19/1972 7.21 06/02/1973 2.97 04/26/1974 4.21 04/24/1975 4.20 06/03/1976 7.08 09/05/1977 3.79 08/21/1978 6.63 04/07/1979 3.11 08/03/1980 2.09 05/27/1981 3.21 05/08/1982 4.94 07/02/1983 3.66 06/05/1984 3.30 05/09/1985 2.35 09/05/1986 3.66 07/18/1987 3.01 06/13/1988 4.23 05/12/1989 2.48 06/28/1990 2.76 06/04/1991 6.75 06/13/1992 4.35 06/22/1993 7.27 05/12/1994 6.22 06/21/1995 6.01 05/30/1996 3.80 06/20/1997 3.50 06/12/1998 2.97 05/09/1999 4.14 05/26/2000 5.24 07/09/2001 4.02 11/25/2001 5.10 04/14/2003 3.45 05/19/2004 5.01 05/31/2005 6.48 09/15/2006 2.48 05/20/2007 5.44 05/31/2008 2.95 07/07/2009 2.58 05/19/2010 5.22 05/20/2011 9.20 05/24/2013 7.40 05/31/2014 4.95 07/01/2015 5.12 06/18/2016 5.30 09/11/2018 2.93 09/02/2019 3.81 06/08/2020 4.17 08/02/2021 2.52 06/11/2022 4.72 Duration: 45 days 05/18/1944 4.10 05/17/1945 3.41 06/04/1946 7.12 05/21/1947 8.01 07/07/1948 4.69 06/07/1949 3.71 06/07/1950 3.95 08/09/1951 3.79 06/10/1952 5.94 05/20/1953 5.95 08/04/1954 8.46 04/20/1955 3.97 06/04/1956 4.92 05/20/1957 3.26 06/01/1958 3.64 05/26/1959 5.63 06/21/1960 5.14 07/24/1961 1.89 06/01/1962 6.03 05/27/1963 6.91 06/11/1964 5.84 05/05/1965 6.30 05/31/1966 5.02 08/15/1968 4.75 06/19/1969 8.19 04/28/1970 4.66 05/28/1971 4.21 04/30/1972 8.75 05/20/1973 4.02 05/13/1974 5.05 03/27/1975 5.08 05/29/1976 8.60 08/20/1977 4.48 08/21/1978 6.82 04/18/1979 3.60 08/09/1980 2.48 05/31/1981 5.16 05/04/1982 5.94 06/12/1983 4.56 05/17/1984 3.84 04/19/1985 3.57 08/21/1986 3.93 07/06/1987 3.78 06/13/1988 4.66 07/23/1989 2.90 06/13/1990 3.42 06/04/1991 8.08 05/31/1992 5.47 06/13/1993 9.66 05/13/1994 7.14 06/04/1995 7.58 05/16/1996 4.80 06/09/1997 4.17 06/01/1998 3.05 05/29/1999 5.06 05/31/2000 8.53 05/29/2001 5.30 06/02/2002 5.70 05/04/2003 5.10 05/11/2004 5.64 05/17/2005 8.15 04/16/2006 2.56 05/10/2007 6.05 04/30/2008 3.73 07/03/2009 4.38 04/28/2010 6.49 05/10/2011 11.39 05/13/2013 8.25 05/18/2014 5.90 06/23/2015 5.91 06/09/2016 7.32 09/21/2016 3.65 08/26/2018 3.36 08/07/2019 4.58 06/06/2020 5.18 07/17/2021 2.67 06/06/2022 5.90 Duration: 60 days 04/29/1944 5.12 06/14/1945 4.03 05/29/1946 7.35 05/14/1947 8.88 05/22/1948 5.30 05/30/1949 4.60 04/29/1950 4.27 08/09/1951 4.24 05/29/1952 6.47 05/02/1953 6.13 07/21/1954 9.19 05/31/1955 5.64 06/12/1956 5.76 04/23/1957 4.51 05/30/1958 3.95 05/26/1959 6.03 06/07/1960 5.63 07/29/1961 2.49 06/12/1962 7.77 05/14/1963 7.61 05/25/1964 6.14 05/05/1965 7.72 06/22/1966 6.18 06/23/1968 5.72 05/30/1969 8.40 04/21/1970 6.76 05/17/1971 4.59 04/30/1972 9.26 05/26/1973 4.96 05/13/1974 7.88 04/24/1975 6.61 05/29/1976 9.33 08/03/1977 5.01 07/29/1978 7.54 04/07/1979 4.26 06/27/1980 3.12 05/27/1981 5.74 05/04/1982 6.54 05/12/1983 4.86 05/16/1984 4.08 04/04/1985 3.71 05/08/1986 4.83 07/17/1987 4.65 06/13/1988 4.80 07/10/1989 3.87 05/31/1990 4.08 05/10/1991 8.84 05/31/1992 6.15 05/30/1993 10.30 05/03/1994 7.76 05/19/1995 8.26 04/30/1996 5.26 05/22/1997 4.69 05/10/1998 3.40 05/09/1999 6.63 05/26/2000 9.05 05/29/2001 6.80 05/22/2002 6.06 04/14/2003 5.54 05/19/2004 6.98 05/15/2005 8.87 04/16/2006 3.42 04/20/2007 7.25 05/31/2008 4.62 07/03/2009 4.56 04/23/2010 7.50 05/09/2011 12.26 05/25/2013 8.73 05/31/2014 6.76 06/10/2015 6.30 05/21/2016 8.31 09/05/2016 4.22 05/17/2018 3.75 08/07/2019 5.49 05/12/2020 5.70 07/08/2021 3.31 05/12/2022 7.09