Precipitation annual maximum series (inches) Station ID: 24-7128 Station name: ROBERTS 1 W State: MT Latitude (decimal degrees): 45.3572 Longitude (decimal degrees): -109.1883 Elevation (feet): 4650 Duration: 1 day 05/22/1952 1.90 04/08/1953 1.35 03/24/1954 1.24 04/04/1955 1.70 04/01/1956 1.58 04/23/1957 1.55 11/01/1957 1.49 05/04/1959 0.85 08/16/1960 1.27 09/19/1961 1.32 06/16/1962 2.65 06/03/1963 1.88 04/25/1964 1.90 08/21/1965 1.55 06/09/1968 2.37 06/25/1969 1.90 05/21/1970 3.02 05/22/1971 1.57 10/01/1971 1.10 09/08/1973 1.80 06/08/1974 1.82 10/31/1974 3.70 10/13/1975 1.60 06/08/1977 1.44 09/18/1978 2.40 05/29/1979 0.92 05/25/1980 1.16 10/15/1980 1.45 09/14/1982 1.55 05/06/1983 1.45 04/26/1984 0.73 06/25/1985 0.66 04/26/1986 1.23 05/27/1987 2.30 05/07/1988 3.20 05/12/1989 1.11 10/28/1989 0.97 10/06/1990 0.88 06/15/1992 1.92 07/03/1993 1.13 10/08/1993 1.45 06/08/1995 1.11 05/23/1996 1.48 08/16/1997 1.96 06/16/1998 1.48 04/29/1999 1.55 05/17/2000 3.40 06/13/2001 3.38 06/09/2002 1.51 05/01/2003 0.79 02/28/2004 1.18 05/11/2005 1.35 09/16/2006 1.08 06/06/2007 1.88 05/22/2008 1.61 06/15/2009 0.90 10/05/2009 1.24 05/20/2011 2.52 05/25/2012 0.58 09/14/2013 1.65 04/27/2014 1.80 05/17/2015 0.69 10/03/2015 1.27 09/15/2017 1.92 05/23/2018 1.85 09/20/2019 1.67 06/17/2020 1.44 10/17/2020 0.68 05/30/2022 2.03 06/08/2023 2.74 10/12/2023 2.12 Duration: 2 days 05/21/1952 3.55 04/07/1953 2.66 03/24/1954 1.37 04/03/1955 2.25 04/01/1956 1.83 06/16/1957 2.80 11/01/1957 1.86 05/03/1959 1.00 08/16/1960 1.40 05/15/1961 2.27 06/16/1962 2.93 05/11/1963 2.39 04/25/1964 3.37 08/20/1965 3.05 06/08/1968 2.80 06/25/1969 2.35 05/21/1970 3.33 05/21/1971 1.96 10/01/1971 2.00 09/07/1973 2.20 06/07/1974 2.01 10/31/1974 4.08 10/13/1975 1.77 06/08/1977 1.64 05/17/1978 3.22 11/09/1978 1.15 05/24/1980 1.28 10/15/1980 1.68 09/13/1982 2.00 05/06/1983 1.60 04/25/1984 1.17 05/10/1985 1.00 05/07/1986 1.65 05/26/1987 3.98 05/07/1988 3.92 05/11/1989 1.23 10/28/1989 1.07 04/11/1991 1.09 06/15/1992 3.12 07/03/1993 1.25 10/07/1993 2.18 06/07/1995 1.80 05/23/1996 1.97 05/24/1997 2.16 06/16/1998 1.63 04/28/1999 1.71 05/16/2000 3.75 06/13/2001 4.23 06/09/2002 1.79 04/30/2003 1.54 02/28/2004 1.58 05/10/2005 2.55 09/15/2006 1.99 06/06/2007 2.86 05/22/2008 3.04 10/10/2008 1.40 10/04/2009 1.50 05/20/2011 3.17 05/25/2012 1.02 09/14/2013 1.82 10/03/2013 1.99 06/10/2015 1.09 05/15/2016 1.40 09/14/2017 2.23 05/22/2018 2.30 09/20/2019 1.84 06/17/2020 1.67 10/21/2020 0.89 05/30/2022 2.33 06/08/2023 3.02 Duration: 3 days 05/21/1952 3.62 04/06/1953 3.00 03/24/1954 1.45 04/02/1955 2.50 04/01/1956 1.87 06/15/1957 3.30 11/01/1957 1.90 05/02/1959 1.25 04/22/1960 1.59 05/15/1961 2.34 06/16/1962 2.98 05/10/1963 2.44 04/25/1964 3.43 08/20/1965 3.11 06/08/1968 2.93 06/24/1969 2.75 05/21/1970 3.84 05/21/1971 2.00 09/30/1971 2.40 09/07/1973 2.24 06/07/1974 2.05 10/30/1974 4.16 06/11/1976 1.96 05/15/1977 1.88 05/17/1978 3.90 11/09/1978 1.17 03/30/1980 1.30 05/10/1981 1.75 09/13/1982 2.04 05/06/1983 1.63 04/25/1984 1.49 05/10/1985 1.02 05/07/1986 1.95 05/25/1987 4.10 05/07/1988 4.00 04/26/1989 1.41 10/01/1989 1.27 04/11/1991 1.57 06/15/1992 3.53 06/06/1993 1.27 10/07/1993 2.22 06/07/1995 2.28 05/23/1996 2.52 05/23/1997 2.21 06/14/1998 1.71 04/27/1999 1.74 05/16/2000 3.82 06/13/2001 4.31 06/09/2002 1.82 04/29/2003 1.64 02/28/2004 1.61 05/10/2005 2.63 09/15/2006 2.03 06/05/2007 2.92 05/21/2008 3.48 10/10/2008 1.87 10/04/2009 1.53 05/19/2011 3.56 05/25/2012 1.42 05/18/2013 1.86 10/03/2013 2.03 05/15/2015 1.36 05/15/2016 1.43 09/14/2017 2.35 05/22/2018 2.34 09/20/2019 1.88 06/17/2020 1.70 10/20/2020 1.20 05/30/2022 2.37 06/08/2023 3.16 Duration: 4 days 05/21/1952 3.65 04/06/1953 3.03 03/21/1954 1.68 04/02/1955 2.52 04/01/1956 1.88 06/15/1957 3.33 11/01/1957 1.91 04/16/1959 1.40 04/22/1960 1.61 05/15/1961 2.41 06/16/1962 3.01 05/09/1963 2.63 04/25/1964 3.47 08/20/1965 3.15 06/06/1968 3.20 06/22/1969 3.01 05/21/1970 3.88 05/21/1971 2.02 09/30/1971 2.42 09/07/1973 2.26 06/05/1974 2.11 05/06/1975 4.20 06/11/1976 1.98 05/15/1977 2.20 05/16/1978 4.42 11/09/1978 1.18 03/30/1980 1.43 05/10/1981 1.99 09/11/1982 2.13 05/06/1983 1.65 04/25/1984 1.50 08/02/1985 1.27 05/07/1986 1.97 05/25/1987 4.14 05/07/1988 4.03 04/25/1989 1.59 10/28/1989 1.36 04/11/1991 1.95 06/14/1992 3.64 06/05/1993 1.28 10/07/1993 2.24 06/07/1995 2.30 05/23/1996 3.10 05/22/1997 2.23 06/16/1998 1.89 04/26/1999 1.76 05/16/2000 3.86 06/12/2001 4.35 06/09/2002 1.84 04/28/2003 1.79 02/28/2004 1.63 05/09/2005 2.69 09/15/2006 2.05 06/05/2007 2.94 05/21/2008 3.80 10/10/2008 1.89 10/04/2009 1.73 05/19/2011 3.59 05/24/2012 1.51 05/17/2013 1.88 10/03/2013 2.04 05/15/2015 1.37 05/15/2016 1.44 09/14/2017 2.37 05/22/2018 2.37 09/20/2019 1.90 05/20/2020 1.81 10/19/2020 1.50 05/28/2022 2.48 06/08/2023 3.19 Duration: 7 days 05/18/1952 3.69 04/06/1953 3.06 03/21/1954 2.11 04/02/1955 2.55 04/01/1956 1.90 06/15/1957 3.86 04/22/1958 2.12 04/15/1959 1.62 04/22/1960 1.76 05/12/1961 3.05 06/12/1962 3.12 05/09/1963 2.71 04/25/1964 3.50 08/20/1965 3.26 06/04/1968 4.02 06/22/1969 3.59 05/21/1970 3.98 08/29/1971 2.33 09/27/1971 2.54 09/02/1973 2.44 06/05/1974 2.15 05/05/1975 5.11 06/11/1976 2.58 05/15/1977 2.52 05/16/1978 4.61 11/09/1978 1.45 03/25/1980 1.78 05/11/1981 3.07 06/04/1982 2.26 05/06/1983 3.05 04/23/1984 1.56 07/28/1985 1.41 06/03/1986 2.28 05/21/1987 4.30 05/01/1988 4.07 05/08/1989 1.71 08/17/1990 1.71 04/12/1991 2.49 06/13/1992 3.68 06/05/1993 1.45 10/07/1993 2.27 06/03/1995 2.33 05/23/1996 3.27 05/23/1997 2.43 06/13/1998 2.19 04/28/1999 1.92 05/16/2000 3.90 06/12/2001 4.55 06/04/2002 1.89 04/28/2003 1.87 02/28/2004 1.64 05/07/2005 3.45 09/15/2006 2.39 06/01/2007 3.02 05/21/2008 4.52 10/06/2008 2.02 09/30/2009 2.00 05/19/2011 5.57 05/24/2012 1.73 09/08/2013 2.38 09/30/2013 2.06 05/13/2015 1.46 05/15/2016 1.68 05/17/2017 2.47 05/22/2018 3.21 05/17/2019 2.24 05/20/2020 2.40 10/17/2020 2.27 05/28/2022 2.50 06/02/2023 3.83 Duration: 10 days 05/13/1952 4.42 04/06/1953 3.17 03/21/1954 2.44 04/02/1955 2.60 04/01/1956 1.98 06/08/1957 4.22 10/24/1957 2.20 04/16/1959 2.07 08/08/1960 1.80 09/10/1961 3.30 06/10/1962 3.18 06/03/1963 3.01 04/25/1964 4.04 08/12/1965 3.53 06/04/1968 4.10 06/22/1969 3.66 05/21/1970 4.15 05/21/1971 2.76 09/27/1971 2.59 09/01/1973 3.64 05/30/1974 2.43 05/05/1975 5.21 06/11/1976 2.63 05/15/1977 2.57 09/11/1978 4.91 11/09/1978 1.55 03/25/1980 2.17 05/10/1981 3.47 05/28/1982 2.99 05/06/1983 3.11 04/19/1984 1.66 07/28/1985 1.80 06/03/1986 2.38 05/18/1987 5.12 05/01/1988 4.65 05/08/1989 2.00 08/17/1990 2.03 04/10/1991 3.49 06/13/1992 3.75 06/07/1993 1.64 10/07/1993 2.40 06/03/1995 2.38 05/23/1996 3.34 05/23/1997 2.76 06/11/1998 2.42 04/20/1999 2.50 05/09/2000 3.98 06/12/2001 4.64 06/01/2002 2.05 04/30/2003 2.38 02/28/2004 1.67 05/07/2005 3.52 09/15/2006 3.20 05/29/2007 3.84 05/21/2008 4.65 10/05/2008 2.11 09/30/2009 2.48 05/20/2011 6.04 05/24/2012 1.80 05/15/2013 2.63 09/25/2013 2.39 05/08/2015 1.79 05/09/2016 2.10 09/14/2017 3.93 05/19/2018 3.30 05/20/2019 2.80 05/20/2020 2.47 10/17/2020 2.55 05/28/2022 3.04 06/02/2023 4.25 Duration: 20 days 05/07/1952 4.80 03/29/1953 3.58 03/11/1954 3.26 05/15/1955 3.74 04/22/1956 2.12 05/12/1957 5.29 10/15/1957 3.68 04/15/1959 3.47 04/22/1960 2.21 09/07/1961 4.25 06/01/1962 4.77 04/27/1963 4.72 04/25/1964 5.48 08/12/1965 3.74 05/23/1968 4.76 06/09/1969 5.25 05/07/1970 4.91 05/14/1971 3.18 09/16/1971 3.43 08/23/1973 4.20 05/20/1974 4.74 05/05/1975 6.04 10/08/1975 3.05 05/07/1977 2.95 04/30/1978 6.89 10/29/1978 1.61 05/09/1980 2.41 05/06/1981 5.67 05/27/1982 4.74 05/06/1983 3.81 04/23/1984 2.16 07/28/1985 2.28 04/26/1986 3.26 05/09/1987 6.68 04/21/1988 5.45 04/24/1989 3.47 05/11/1990 2.13 04/10/1991 3.73 06/13/1992 4.63 04/12/1993 2.29 09/26/1993 2.50 04/24/1995 3.14 05/10/1996 3.83 05/24/1997 4.37 06/02/1998 3.79 04/20/1999 2.84 04/29/2000 4.55 05/29/2001 5.18 05/22/2002 2.69 04/23/2003 3.21 06/10/2004 2.76 04/27/2005 3.82 09/15/2006 3.81 05/22/2007 5.36 05/09/2008 5.60 06/02/2009 2.84 09/30/2009 2.56 05/09/2011 8.82 05/10/2012 2.07 05/15/2013 4.01 04/27/2014 3.61 05/15/2015 2.92 05/09/2016 2.96 09/14/2017 3.93 05/10/2018 4.62 05/17/2019 3.94 05/20/2020 3.75 10/17/2020 2.55 05/28/2022 3.50 05/22/2023 6.20 Duration: 30 days 05/08/1952 5.14 05/08/1953 4.07 02/28/1954 3.71 05/13/1955 4.39 04/01/1956 3.16 05/19/1957 7.75 10/04/1957 3.99 04/15/1959 3.72 04/06/1960 2.36 09/09/1961 4.91 05/22/1962 6.78 05/09/1963 5.52 04/12/1964 6.14 08/20/1965 5.80 05/14/1968 5.66 05/30/1969 6.07 04/26/1970 6.36 09/03/1971 5.32 07/19/1972 3.43 08/12/1973 4.99 05/20/1974 4.98 04/25/1975 6.90 04/16/1976 4.00 05/15/1977 4.40 04/26/1978 8.15 11/09/1978 2.26 05/24/1980 3.48 05/02/1981 6.39 05/19/1982 5.81 05/06/1983 4.41 04/23/1984 2.57 07/18/1985 2.52 04/11/1986 4.12 05/16/1987 6.95 04/09/1988 5.47 04/16/1989 3.93 04/14/1990 2.94 04/11/1991 4.86 06/13/1992 5.56 06/05/1993 3.39 09/12/1993 3.43 05/12/1995 4.09 05/02/1996 4.50 05/17/1997 5.14 05/21/1998 4.37 04/01/1999 3.50 04/18/2000 4.81 05/20/2001 5.83 05/30/2002 3.09 04/15/2003 3.53 06/10/2004 3.48 04/18/2005 5.77 09/15/2006 5.11 05/18/2007 5.48 05/07/2008 6.37 03/17/2009 3.28 05/11/2010 2.88 05/09/2011 9.99 05/17/2012 2.37 09/08/2013 5.02 04/12/2014 3.85 05/13/2015 4.25 04/18/2016 3.88 04/21/2017 4.77 05/22/2018 6.16 05/17/2019 5.15 05/20/2020 5.42 10/17/2020 3.05 05/28/2022 4.87 05/26/2023 7.42 Duration: 45 days 05/13/1952 6.49 03/29/1953 5.58 02/28/1954 3.71 05/02/1955 5.34 04/01/1956 4.10 05/09/1957 10.83 05/30/1958 5.11 04/15/1959 5.03 04/22/1960 2.66 09/09/1961 5.39 05/07/1962 8.35 04/27/1963 8.24 04/02/1964 7.65 08/12/1965 6.66 05/14/1968 6.18 05/15/1969 7.42 05/07/1970 7.49 08/29/1971 5.96 07/19/1972 4.18 08/04/1973 5.50 05/20/1974 6.27 05/06/1975 8.19 04/01/1976 4.60 05/07/1977 5.02 04/27/1978 8.84 04/25/1979 2.61 05/08/1980 4.66 04/27/1981 6.67 05/08/1982 6.70 05/06/1983 5.26 04/19/1984 2.91 06/23/1985 3.01 04/26/1986 5.57 05/16/1987 7.26 03/30/1988 5.92 04/16/1989 4.52 04/09/1990 3.78 04/10/1991 6.23 05/27/1992 6.51 05/21/1993 3.97 09/05/1993 3.82 04/25/1995 5.49 04/21/1996 5.19 05/01/1997 6.53 05/30/1998 5.27 04/01/1999 4.14 05/06/2000 5.09 05/16/2001 6.24 04/30/2002 4.33 04/28/2003 5.19 05/22/2004 4.22 04/04/2005 6.36 09/15/2006 6.18 05/02/2007 5.92 04/24/2008 6.61 03/17/2009 4.04 04/25/2010 3.71 05/09/2011 10.93 04/15/2012 2.71 09/08/2013 5.74 03/27/2014 4.80 05/08/2015 4.74 04/14/2016 4.81 04/09/2017 5.01 05/10/2018 7.83 05/17/2019 6.19 05/20/2020 6.78 10/17/2020 3.05 05/12/2022 5.43 05/11/2023 9.51 Duration: 60 days 05/15/1952 7.58 04/06/1953 7.50 03/11/1954 4.40 04/04/1955 6.28 04/01/1956 5.10 04/23/1957 12.69 09/12/1957 5.85 04/02/1959 5.24 09/16/1959 3.83 09/01/1961 6.71 04/25/1962 8.47 04/18/1963 8.99 04/21/1964 10.41 08/12/1965 6.90 04/12/1968 6.64 05/17/1969 7.81 04/26/1970 8.94 08/29/1971 7.20 07/19/1972 5.08 08/12/1973 5.70 04/10/1974 7.42 04/25/1975 9.46 04/16/1976 6.18 05/07/1977 5.20 04/27/1978 9.14 04/25/1979 2.88 05/08/1980 4.81 04/27/1981 7.14 05/08/1982 7.43 03/16/1983 6.14 03/27/1984 3.55 07/30/1985 3.96 04/11/1986 6.51 05/16/1987 9.22 03/11/1988 6.13 04/16/1989 4.93 04/09/1990 4.77 04/11/1991 8.15 05/16/1992 7.65 04/12/1993 4.93 03/22/1994 4.87 04/14/1995 6.51 04/21/1996 5.54 04/15/1997 7.28 05/13/1998 6.07 04/21/1999 4.99 05/06/2000 6.18 04/20/2001 7.32 04/15/2002 5.59 04/26/2003 5.71 05/11/2004 4.68 04/18/2005 7.03 08/26/2006 6.55 04/16/2007 6.94 05/07/2008 7.52 03/17/2009 4.50 04/23/2010 4.28 04/17/2011 11.56 04/12/2012 3.58 09/02/2013 6.30 04/27/2014 6.04 04/15/2015 6.02 03/23/2016 5.74 03/28/2017 5.80 04/23/2018 8.73 05/17/2019 8.13 05/07/2020 7.92 08/27/2020 3.31 04/22/2022 6.50 05/05/2023 10.28