Precipitation annual maximum series (inches) Station ID: 24-3366 Station name: GALLATIN GATEWAY 10SSW State: MT Latitude (decimal degrees): 45.4453 Longitude (decimal degrees): -111.2367 Elevation (feet): 5441 Duration: 1 hour 06/18/2002 0.61 08/08/2008 0.39 07/24/2009 1.11 03/17/2011 0.34 04/07/2012 0.34 06/11/2013 0.66 06/13/2014 0.33 07/10/2015 0.50 07/26/2016 0.30 06/29/2017 0.55 08/20/2018 0.28 07/03/2019 0.39 08/03/2020 0.39 04/06/2021 0.28 Duration: 2 hours 06/24/2002 0.88 10/05/2005 0.74 04/30/2008 0.51 07/24/2009 1.20 04/22/2011 0.53 04/07/2012 0.50 06/11/2013 0.75 07/22/2014 0.48 07/10/2015 0.54 05/11/2016 0.53 06/29/2017 0.64 08/20/2018 0.45 07/03/2019 0.42 08/03/2020 0.42 04/06/2021 0.51 Duration: 3 hours 07/25/2002 1.03 10/05/2005 0.93 04/30/2008 0.58 07/24/2009 1.37 05/20/2011 0.69 10/06/2011 0.65 06/11/2013 0.77 08/23/2014 0.59 05/25/2015 0.61 05/11/2016 0.77 06/29/2017 0.65 06/29/2018 0.48 05/17/2019 0.54 08/03/2020 0.43 08/19/2021 0.63 Duration: 6 hours 06/10/2004 1.20 10/05/2005 1.12 05/22/2008 0.83 07/24/2009 1.46 05/10/2011 1.07 10/06/2011 0.99 05/19/2013 1.37 08/23/2014 1.04 07/27/2015 0.71 05/11/2016 0.95 06/29/2017 0.71 04/22/2018 0.76 11/24/2018 0.75 10/04/2019 0.51 08/19/2021 1.00 Duration: 12 hours 05/21/2002 1.68 06/10/2004 1.93 05/22/2008 1.22 07/24/2009 1.47 05/10/2011 1.52 10/06/2011 1.46 05/19/2013 2.17 08/23/2014 1.41 07/27/2015 0.89 05/11/2016 0.95 10/30/2016 0.81 04/22/2018 1.01 09/20/2019 1.06 04/15/2020 0.68 08/19/2021 1.37 Duration: 1 day 09/20/1951 1.10 05/22/1952 1.58 09/02/1953 1.23 03/11/1954 0.86 06/02/1955 0.91 12/23/1955 1.60 05/21/1957 1.69 11/01/1957 1.30 09/21/1959 1.10 08/16/1960 0.70 09/19/1961 2.46 03/28/1962 2.56 09/03/1963 1.51 08/29/1964 1.40 05/07/1965 1.75 05/11/1966 1.31 04/30/1967 1.36 03/18/1968 1.14 05/31/1969 1.90 10/28/1969 1.11 10/26/1970 1.55 06/19/1972 1.40 04/10/1974 2.05 05/18/1978 3.43 06/19/1979 1.93 05/25/1980 1.83 05/22/1981 1.95 09/27/1982 1.15 05/19/1983 0.95 09/21/1984 1.43 05/26/1985 0.65 06/09/1986 1.33 04/19/1987 1.12 05/07/1988 3.05 05/08/1989 0.76 05/13/1990 1.02 05/31/1991 1.10 06/16/1992 2.82 07/26/1993 1.51 07/06/1994 1.33 06/27/1995 1.50 01/31/1996 2.42 04/05/1997 0.98 06/17/1998 1.45 08/05/1999 0.76 09/21/2000 0.83 06/13/2001 1.90 05/22/2002 0.90 04/18/2003 1.87 06/10/2004 2.09 06/06/2005 2.00 06/10/2006 0.94 05/28/2007 1.10 06/10/2008 1.72 07/23/2009 1.29 09/10/2010 0.86 05/20/2011 1.97 10/06/2011 1.51 05/19/2013 3.05 08/23/2014 1.79 07/27/2015 1.02 05/10/2016 0.96 06/28/2017 0.85 04/22/2018 1.10 09/20/2019 1.12 04/14/2020 0.70 08/19/2021 1.39 Duration: 2 days 04/30/1951 1.36 05/21/1952 3.08 06/02/1953 1.50 06/01/1954 1.10 06/02/1955 1.55 12/22/1955 1.80 05/20/1957 2.04 11/01/1957 1.43 09/21/1959 1.34 08/15/1960 0.98 09/18/1961 2.82 03/27/1962 2.83 05/11/1963 1.67 05/03/1964 1.76 05/06/1965 2.27 05/10/1966 1.80 04/30/1967 1.55 03/18/1968 1.62 05/31/1969 2.12 09/08/1970 1.53 06/27/1971 1.81 06/18/1972 1.55 09/01/1973 2.83 04/09/1974 3.15 05/17/1978 4.30 06/18/1979 2.13 05/24/1980 2.05 05/21/1981 2.82 09/27/1982 1.31 12/01/1982 1.23 04/25/1984 1.85 05/10/1985 0.76 06/08/1986 2.02 05/27/1987 1.83 05/07/1988 3.98 04/27/1989 0.86 10/01/1989 1.57 04/11/1991 1.45 06/15/1992 4.01 07/03/1993 1.67 06/13/1994 2.64 06/27/1995 1.66 01/30/1996 2.67 05/01/1997 1.53 06/16/1998 2.18 08/04/1999 1.50 09/20/2000 1.13 06/12/2001 2.90 07/25/2002 1.45 04/17/2003 2.06 06/09/2004 2.71 06/09/2006 1.25 05/28/2007 1.84 05/21/2008 2.13 07/23/2009 1.42 09/09/2010 1.19 05/08/2011 2.88 10/06/2011 1.90 05/18/2013 4.67 08/22/2014 2.50 05/15/2015 1.42 09/21/2016 1.08 10/02/2016 1.21 04/22/2018 1.22 09/20/2019 1.31 06/16/2020 0.90 08/18/2021 1.62 Duration: 3 days 09/20/1951 1.43 05/20/1952 3.28 06/02/1953 1.90 03/10/1954 1.21 06/02/1955 1.62 12/21/1955 1.85 06/15/1957 2.22 11/01/1957 1.46 05/01/1959 1.50 05/03/1960 1.06 09/19/1961 3.45 03/27/1962 2.88 05/10/1963 1.70 06/07/1964 2.08 05/05/1965 2.46 05/10/1966 1.83 04/30/1967 1.78 03/18/1968 1.65 05/30/1969 2.20 11/16/1969 1.70 06/27/1971 2.11 06/19/1972 1.92 04/09/1974 3.95 05/17/1978 4.60 06/18/1979 2.28 05/24/1980 2.20 05/21/1981 3.21 06/06/1982 2.11 07/08/1983 1.25 04/25/1984 1.95 08/11/1985 1.18 06/08/1986 2.06 05/26/1987 2.29 05/06/1988 4.08 04/25/1989 1.12 05/13/1990 1.93 04/11/1991 1.83 06/15/1992 4.61 07/24/1993 1.92 06/13/1994 2.69 06/27/1995 1.69 01/29/1996 2.72 04/30/1997 1.58 06/15/1998 2.29 08/04/1999 1.96 05/28/2000 1.58 06/11/2001 3.77 07/25/2002 1.55 04/16/2003 2.17 06/09/2004 3.16 06/06/2005 3.62 10/02/2005 1.52 05/28/2007 1.89 05/22/2008 2.29 07/23/2009 1.56 09/08/2010 1.21 05/07/2011 3.30 10/05/2011 1.94 05/17/2013 5.06 08/21/2014 2.93 05/14/2015 1.64 04/23/2016 1.46 10/01/2016 1.45 04/22/2018 1.25 07/01/2019 1.46 10/26/2019 1.04 08/18/2021 1.75 Duration: 4 days 09/20/1951 1.74 05/19/1952 3.39 06/02/1953 2.05 03/09/1954 1.22 05/31/1955 1.87 12/21/1955 1.87 06/14/1957 2.41 06/10/1958 1.48 05/26/1959 1.80 05/03/1960 1.29 09/18/1961 3.81 03/27/1962 2.91 05/09/1963 2.35 06/06/1964 2.21 05/05/1965 2.64 05/10/1966 1.85 04/29/1967 1.94 03/18/1968 1.67 05/30/1969 2.27 10/25/1969 1.80 06/26/1971 2.21 06/18/1972 2.05 04/09/1974 5.00 05/16/1978 4.80 06/18/1979 2.36 05/23/1980 2.25 05/21/1981 3.52 06/05/1982 2.16 09/27/1983 1.42 04/23/1984 2.20 08/11/1985 1.19 06/06/1986 2.64 05/26/1987 2.64 05/06/1988 4.12 04/25/1989 1.28 05/12/1990 1.96 04/10/1991 2.14 06/14/1992 4.79 07/23/1993 2.57 06/13/1994 2.86 05/06/1995 1.70 01/28/1996 2.82 04/29/1997 2.13 06/16/1998 2.71 08/04/1999 1.98 05/27/2000 1.61 06/11/2001 3.84 07/25/2002 1.67 04/15/2003 2.47 06/08/2004 3.61 06/05/2005 3.69 04/05/2006 1.75 05/28/2007 1.93 05/21/2008 3.18 07/23/2009 2.07 05/21/2010 1.29 05/07/2011 3.39 10/05/2011 1.98 05/16/2013 5.26 08/20/2014 2.99 05/13/2015 1.71 04/23/2016 1.59 04/24/2017 1.71 04/22/2018 1.26 06/30/2019 1.50 06/27/2020 1.13 08/16/2021 1.85 Duration: 7 days 09/20/1951 1.83 05/20/1952 4.02 06/02/1953 2.14 05/28/1954 1.86 05/28/1955 2.17 12/18/1955 2.23 06/15/1957 3.93 07/29/1958 1.79 05/24/1959 2.35 05/02/1960 1.81 09/17/1961 4.24 03/23/1962 2.94 05/09/1963 2.52 06/03/1964 2.91 05/02/1965 3.01 05/10/1966 2.43 04/28/1967 2.15 09/30/1967 2.37 06/20/1969 3.11 09/03/1970 2.01 10/06/1970 2.63 06/19/1972 2.52 04/09/1974 5.05 06/12/1976 4.06 05/16/1978 4.85 06/17/1979 2.42 05/24/1980 2.80 05/20/1981 4.19 06/02/1982 2.33 05/06/1983 1.83 04/23/1984 2.42 09/06/1985 1.37 06/03/1986 3.80 05/26/1987 3.54 05/01/1988 4.16 06/15/1989 1.61 05/09/1990 2.01 04/06/1991 2.63 06/11/1992 4.93 07/22/1993 2.75 06/08/1994 3.04 05/06/1995 2.19 01/25/1996 3.52 04/28/1997 2.45 06/14/1998 3.12 08/04/1999 2.00 05/26/2000 2.26 06/11/2001 4.51 05/21/2002 1.90 04/14/2003 2.72 06/06/2004 4.20 06/02/2005 6.37 04/02/2006 1.85 05/22/2007 3.81 05/20/2008 3.44 04/23/2009 2.13 05/19/2010 1.87 05/19/2011 3.75 10/05/2011 2.04 05/17/2013 5.56 08/20/2014 3.04 05/12/2015 2.13 04/23/2016 1.80 09/14/2017 2.19 04/16/2018 1.60 09/20/2019 1.83 02/02/2020 1.57 05/20/2021 1.95 Duration: 10 days 09/20/1951 1.87 05/13/1952 4.28 05/28/1953 2.39 05/20/1954 2.08 05/25/1955 2.67 12/16/1955 2.33 06/12/1957 4.19 07/23/1958 2.16 09/21/1959 2.57 05/02/1960 1.85 09/17/1961 4.32 03/21/1962 3.32 05/03/1963 2.71 06/03/1964 3.07 04/30/1965 3.40 05/10/1966 2.48 06/14/1967 2.65 08/13/1968 2.55 06/20/1969 3.34 09/03/1970 2.09 05/14/1971 2.87 06/16/1972 2.98 04/09/1974 5.15 05/11/1978 5.00 06/17/1979 2.47 05/16/1980 3.20 05/18/1981 4.31 09/26/1982 2.46 05/10/1983 2.41 04/20/1984 2.53 08/06/1985 1.53 06/04/1986 3.99 05/25/1987 3.61 04/30/1988 5.25 05/08/1989 2.07 05/07/1990 2.26 04/06/1991 3.08 06/11/1992 5.03 06/06/1993 2.89 06/07/1994 3.52 05/06/1995 2.70 01/24/1996 3.67 04/25/1997 2.71 06/12/1998 3.18 08/04/1999 3.26 06/15/2000 2.35 07/09/2001 4.65 06/02/2002 2.70 04/14/2003 3.03 06/04/2004 4.46 05/31/2005 7.12 03/30/2006 1.95 05/21/2007 3.93 06/02/2008 3.84 04/25/2009 2.80 06/08/2010 2.52 05/21/2011 4.82 10/05/2011 2.09 05/18/2013 5.80 08/22/2014 3.51 05/13/2015 2.24 05/12/2016 2.08 09/15/2017 2.87 04/23/2018 1.93 09/21/2019 2.09 02/03/2020 1.74 05/19/2021 2.00 Duration: 20 days 07/24/1951 2.52 05/08/1952 6.09 05/19/1953 3.72 05/20/1954 3.51 05/15/1955 3.97 04/24/1956 3.15 06/02/1957 6.21 07/23/1958 3.18 06/25/1959 3.50 04/19/1960 3.20 09/01/1961 6.33 05/20/1962 3.92 04/27/1963 4.21 06/03/1964 4.59 04/21/1965 4.63 05/10/1966 3.40 06/05/1967 4.67 05/22/1968 4.06 06/07/1969 5.51 09/03/1970 2.93 05/14/1971 3.85 06/07/1972 3.30 04/02/1974 5.72 04/30/1978 7.53 06/06/1979 3.09 05/07/1980 4.10 05/07/1981 7.40 05/23/1982 3.62 05/06/1983 3.31 04/07/1984 3.34 07/29/1985 2.31 06/03/1986 4.64 05/16/1987 5.05 04/19/1988 6.38 04/27/1989 3.25 04/26/1990 4.11 03/29/1991 3.71 06/14/1992 6.24 05/29/1993 3.85 05/29/1994 4.14 10/02/1994 4.31 01/15/1996 4.09 04/17/1997 3.36 06/07/1998 4.09 08/04/1999 3.73 06/15/2000 2.95 05/27/2001 4.69 05/22/2002 4.75 04/18/2003 5.14 05/23/2004 6.56 05/31/2005 8.89 09/17/2005 3.25 05/19/2007 4.11 05/22/2008 6.34 04/15/2009 4.29 05/29/2010 4.81 05/08/2011 7.33 10/07/2011 3.21 05/17/2013 7.31 04/23/2014 4.34 05/12/2015 4.19 04/24/2016 3.28 09/15/2017 3.61 04/05/2018 3.31 04/09/2019 3.44 06/15/2020 2.78 05/08/2021 3.21 Duration: 30 days 09/20/1951 3.32 05/05/1952 6.72 05/09/1953 4.69 05/20/1954 4.51 05/21/1955 4.58 04/23/1956 3.47 05/19/1957 7.17 06/09/1958 4.78 05/01/1959 4.84 04/10/1960 4.23 09/01/1961 7.98 05/12/1962 5.27 05/10/1963 4.93 05/23/1964 5.77 04/11/1965 6.25 04/26/1966 3.87 05/25/1967 6.51 05/15/1968 5.34 05/31/1969 8.02 10/25/1969 4.00 05/14/1971 5.46 05/23/1972 3.95 04/02/1974 6.21 05/03/1978 7.98 05/24/1979 5.37 05/03/1980 5.29 05/11/1981 8.94 09/10/1982 4.59 06/16/1983 3.70 04/07/1984 4.10 09/09/1985 3.03 06/05/1986 5.29 05/16/1987 5.84 04/20/1988 6.92 04/23/1989 4.52 04/26/1990 4.80 05/07/1991 5.39 05/26/1992 7.75 06/06/1993 6.12 05/17/1994 5.06 04/14/1995 5.28 01/02/1996 4.65 04/04/1997 4.65 06/02/1998 4.21 08/04/1999 5.05 05/26/2000 4.64 05/20/2001 4.74 05/21/2002 5.80 04/14/2003 6.74 05/13/2004 7.69 05/19/2005 9.69 03/30/2006 3.25 05/10/2007 4.47 05/13/2008 7.79 04/09/2009 5.72 05/19/2010 6.94 05/10/2011 9.22 10/05/2011 3.30 05/17/2013 9.40 04/23/2014 5.28 05/06/2015 5.14 04/24/2016 4.54 10/02/2016 4.70 04/02/2018 4.35 09/07/2019 4.85 06/03/2020 3.47 04/25/2021 3.97 Duration: 45 days 04/30/1951 3.61 04/15/1952 8.15 05/11/1953 5.84 05/16/1954 5.99 05/21/1955 5.84 04/01/1956 4.35 05/08/1957 9.80 05/24/1958 6.17 05/24/1959 6.52 04/10/1960 5.03 08/26/1961 9.36 04/28/1962 6.42 04/27/1963 7.27 05/02/1964 7.55 04/12/1965 7.93 05/11/1966 5.74 05/10/1967 7.38 05/16/1968 6.51 05/14/1969 9.12 08/29/1970 5.97 05/16/1971 7.43 05/10/1972 4.95 04/09/1974 8.44 04/30/1978 9.25 05/08/1979 5.51 05/03/1980 6.84 05/03/1981 11.92 03/02/1982 5.32 05/06/1983 5.83 03/24/1984 5.38 09/02/1985 4.16 04/26/1986 7.00 05/16/1987 6.79 03/27/1988 8.28 05/08/1989 5.60 04/12/1990 6.01 04/03/1991 6.98 05/26/1992 9.53 05/21/1993 7.80 05/12/1994 6.05 04/02/1995 7.34 04/17/1996 6.06 03/24/1997 5.87 06/02/1998 4.48 05/09/1999 5.70 05/26/2000 5.24 06/04/2001 4.98 05/06/2002 6.90 04/14/2003 7.42 05/22/2004 9.39 05/08/2005 10.83 05/26/2006 3.72 04/26/2007 5.62 04/30/2008 9.01 03/25/2009 8.35 05/19/2010 7.99 05/08/2011 12.23 10/07/2011 4.31 05/17/2013 10.21 04/23/2014 6.16 04/23/2015 6.62 04/14/2016 5.84 09/19/2016 6.03 03/15/2018 5.44 06/04/2019 6.26 05/22/2020 4.49 04/17/2021 4.60 Duration: 60 days 06/27/1951 4.17 03/24/1952 9.56 04/28/1953 6.98 05/20/1954 6.93 05/14/1955 6.75 10/26/1955 5.35 05/10/1957 10.78 06/01/1958 8.31 05/01/1959 7.79 03/29/1960 5.91 08/31/1961 11.54 03/28/1962 7.59 04/27/1963 8.33 04/23/1964 9.93 05/05/1965 8.65 04/26/1966 6.72 04/28/1967 9.66 04/12/1968 8.13 05/18/1969 9.85 04/15/1970 6.37 05/09/1971 8.59 04/30/1972 6.13 04/09/1974 10.55 04/19/1976 10.37 04/30/1978 10.13 05/24/1979 6.06 05/06/1980 7.71 04/21/1981 13.52 03/12/1982 6.53 05/06/1983 6.89 03/02/1984 6.46 08/11/1985 5.29 04/11/1986 9.42 05/20/1987 9.82 03/10/1988 9.72 04/25/1989 7.67 04/18/1990 6.59 04/07/1991 9.01 05/08/1992 10.72 05/29/1993 10.51 05/12/1994 7.44 03/16/1995 9.14 01/24/1996 8.02 03/27/1997 6.38 07/29/1998 5.64 05/03/1999 6.91 04/22/2000 6.48 05/20/2001 5.73 05/06/2002 7.55 03/23/2003 8.45 05/12/2004 10.77 04/28/2005 11.96 03/30/2006 4.10 04/09/2007 6.60 04/15/2008 10.13 03/18/2009 9.65 04/23/2010 10.11 04/19/2011 14.01 04/01/2012 5.65 05/17/2013 10.86 04/23/2014 8.15 04/05/2015 7.57 03/23/2016 7.37 09/04/2016 7.27 03/15/2018 6.84 05/18/2019 7.33 05/07/2020 5.45 03/31/2021 5.94