Precipitation annual maximum series (inches) Station ID: 87-1123 Station name: JEFFERSON RVR VALLEY WEATHER S State: MT Latitude (decimal degrees): 45.7978 Longitude (decimal degrees): -112.1653 Elevation (feet): 4415 Duration: 1 hour 05/16/1949 0.98 08/11/1950 0.32 08/23/1951 0.35 05/14/1952 0.26 11/24/1952 0.16 08/21/1954 0.36 06/13/1955 0.55 07/02/1956 0.25 05/19/1957 0.21 08/11/1958 0.50 06/07/1959 0.40 06/21/2002 0.32 05/31/2003 0.25 07/15/2004 0.44 08/02/2005 0.86 08/25/2006 0.27 07/07/2007 0.32 07/22/2008 0.19 06/06/2009 0.25 10/19/2009 0.28 08/01/2011 0.57 05/10/2012 0.14 08/01/2013 0.30 06/01/2014 0.19 06/16/2015 0.27 08/18/2016 0.48 06/27/2017 0.45 06/19/2018 0.27 09/06/2019 0.28 06/14/2020 0.32 08/08/2021 0.39 Duration: 2 hours 05/16/1949 1.33 08/11/1950 0.46 08/29/1951 0.52 05/15/1952 0.43 06/02/1953 0.21 08/21/1954 0.43 06/13/1955 0.65 07/02/1956 0.32 05/19/1957 0.38 08/11/1958 0.54 06/07/1959 0.43 08/21/2002 0.51 05/31/2003 0.39 07/15/2004 0.47 08/02/2005 0.93 08/25/2006 0.39 07/07/2007 0.36 06/04/2008 0.23 07/06/2009 0.36 10/19/2009 0.39 08/01/2011 0.61 05/10/2012 0.28 05/17/2013 0.40 07/15/2014 0.31 09/16/2015 0.37 08/18/2016 0.52 10/30/2016 0.49 06/19/2018 0.47 09/06/2019 0.51 06/14/2020 0.48 08/08/2021 0.42 Duration: 3 hours 05/16/1949 1.45 08/11/1950 0.49 08/29/1951 0.53 05/15/1952 0.62 06/02/1953 0.30 08/21/1954 0.52 06/13/1955 0.66 07/02/1956 0.33 05/19/1957 0.47 06/24/1958 0.66 06/07/1959 0.44 08/21/2002 0.52 05/31/2003 0.41 07/15/2004 0.48 08/02/2005 0.94 04/05/2006 0.49 09/05/2007 0.42 06/04/2008 0.32 03/22/2009 0.51 10/19/2009 0.51 08/01/2011 0.63 05/10/2012 0.29 09/25/2013 0.53 07/15/2014 0.43 09/16/2015 0.50 07/10/2016 0.56 10/30/2016 0.57 06/19/2018 0.53 09/06/2019 0.55 06/14/2020 0.56 08/02/2021 0.43 Duration: 6 hours 05/16/1949 1.61 08/11/1950 0.49 05/12/1951 0.55 05/15/1952 0.72 06/02/1953 0.36 08/21/1954 0.54 06/13/1955 0.67 12/23/1955 0.53 05/19/1957 0.74 06/24/1958 0.78 06/07/1959 0.53 08/21/2002 0.55 06/20/2003 0.50 06/10/2004 0.64 08/02/2005 1.09 04/05/2006 0.63 09/05/2007 0.54 06/04/2008 0.58 03/22/2009 0.68 10/19/2009 0.83 08/01/2011 0.63 04/06/2012 0.36 09/25/2013 0.89 08/23/2014 0.53 09/16/2015 0.77 07/10/2016 0.59 10/30/2016 0.68 06/19/2018 0.60 09/06/2019 0.56 06/17/2020 0.63 08/08/2021 0.47 Duration: 12 hours 05/16/1949 1.93 09/09/1950 0.58 08/29/1951 0.62 05/15/1952 0.97 06/02/1953 0.41 08/21/1954 0.62 04/25/1955 0.95 12/23/1955 0.83 05/19/1957 0.99 04/26/1958 0.88 06/06/1959 0.81 08/21/2002 0.55 06/20/2003 0.63 06/10/2004 0.68 08/02/2005 1.24 04/05/2006 0.77 10/07/2006 0.74 06/04/2008 0.92 03/22/2009 0.72 10/19/2009 1.11 06/07/2011 0.63 04/06/2012 0.53 09/25/2013 1.01 08/23/2014 0.76 09/16/2015 0.80 06/15/2016 0.59 05/17/2017 0.77 06/18/2018 0.80 05/17/2019 0.60 06/17/2020 0.95 05/23/2021 0.50 Duration: 1 day 05/16/1949 1.67 09/08/1950 0.65 08/22/1951 0.62 05/14/1952 1.39 05/23/1953 0.64 08/21/1954 0.60 04/25/1955 1.01 12/23/1955 0.72 05/19/1957 0.92 04/26/1958 1.01 06/06/1959 1.15 06/01/2002 0.68 06/20/2003 0.58 08/22/2004 0.76 08/02/2005 1.09 04/05/2006 1.06 06/06/2007 0.73 06/03/2008 0.97 06/05/2009 0.69 10/18/2009 1.03 06/08/2011 0.68 04/05/2012 0.55 09/25/2013 1.04 08/23/2014 0.79 05/15/2015 0.85 07/10/2016 0.57 06/12/2017 0.93 06/18/2018 0.74 05/17/2019 0.57 06/16/2020 0.91 05/23/2021 0.44 Duration: 2 days 05/16/1949 1.84 09/08/1950 0.74 08/22/1951 0.93 05/14/1952 1.65 05/23/1953 0.71 08/21/1954 0.66 04/25/1955 1.30 12/23/1955 0.79 05/19/1957 1.21 04/26/1958 1.18 06/05/1959 1.67 06/01/2002 0.75 06/20/2003 0.87 05/21/2004 0.97 08/01/2005 1.22 04/04/2006 1.44 06/05/2007 0.83 06/03/2008 1.10 03/21/2009 0.88 10/18/2009 1.14 06/07/2011 1.02 05/24/2012 0.75 09/24/2013 1.20 08/21/2014 0.97 05/14/2015 1.11 05/19/2016 0.75 09/14/2017 1.28 06/18/2018 1.58 05/15/2019 0.71 06/15/2020 1.41 08/19/2021 0.62 Duration: 3 days 05/14/1949 1.99 09/08/1950 0.75 08/22/1951 0.98 05/14/1952 1.68 05/23/1953 0.72 08/21/1954 0.68 04/25/1955 1.33 12/23/1955 0.81 05/18/1957 1.24 04/26/1958 1.21 06/05/1959 1.70 05/30/2002 0.99 06/20/2003 0.93 08/22/2004 1.04 08/01/2005 1.24 04/03/2006 1.49 10/06/2006 1.20 06/03/2008 1.31 03/21/2009 0.90 10/18/2009 1.16 06/07/2011 1.42 05/24/2012 0.94 09/23/2013 1.23 08/21/2014 1.24 09/15/2015 1.21 05/19/2016 0.85 09/14/2017 1.31 06/16/2018 1.76 09/06/2019 0.94 06/14/2020 1.58 08/17/2021 0.87 Duration: 4 days 05/16/1949 2.51 09/08/1950 0.76 08/22/1951 0.99 05/14/1952 1.70 05/23/1953 0.73 08/21/1954 0.79 04/25/1955 1.35 12/23/1955 0.82 05/19/1957 1.38 04/26/1958 1.22 06/05/1959 1.72 05/30/2002 1.02 04/22/2003 0.94 08/21/2004 1.08 08/01/2005 1.26 04/05/2006 1.56 10/06/2006 1.22 06/03/2008 1.33 06/04/2009 0.94 10/16/2009 1.17 06/07/2011 1.45 05/24/2012 0.97 09/22/2013 1.27 08/20/2014 1.49 05/12/2015 1.26 05/19/2016 0.86 06/09/2017 1.37 06/15/2018 2.05 09/06/2019 1.03 06/14/2020 2.18 05/19/2021 1.02 Duration: 7 days 05/14/1949 2.69 09/08/1950 1.12 08/22/1951 1.31 05/14/1952 2.15 05/19/1953 1.03 06/26/1954 0.93 04/25/1955 1.38 12/16/1955 0.89 06/14/1957 1.52 04/22/1958 1.40 06/03/1959 1.88 06/01/2002 1.28 06/15/2003 1.07 08/16/2004 1.63 08/02/2005 1.48 04/03/2006 1.84 10/05/2006 1.25 06/01/2008 1.38 03/22/2009 1.10 06/10/2010 1.71 06/07/2011 1.70 05/21/2012 1.02 09/23/2013 1.39 08/18/2014 1.51 05/09/2015 1.35 05/19/2016 1.05 09/14/2017 1.51 06/15/2018 2.50 09/06/2019 1.12 06/14/2020 2.21 05/19/2021 1.24 Duration: 10 days 05/15/1949 2.77 08/04/1950 1.16 08/23/1951 1.73 05/08/1952 2.35 05/24/1953 1.32 06/27/1954 0.99 04/18/1955 1.49 12/17/1955 0.91 06/13/1957 1.62 04/18/1958 1.46 06/04/1959 1.92 05/31/2002 1.61 04/23/2003 1.30 08/17/2004 1.86 08/02/2005 1.56 04/02/2006 1.96 10/07/2006 1.61 05/29/2008 1.48 03/22/2009 1.34 06/08/2010 1.78 06/05/2011 1.75 05/18/2012 1.19 09/25/2013 1.88 08/16/2014 1.69 05/08/2015 1.41 05/20/2016 1.38 09/15/2017 2.12 06/13/2018 2.67 09/07/2019 1.14 06/09/2020 2.31 05/20/2021 1.26 Duration: 20 days 05/15/1949 4.04 07/24/1950 1.65 08/23/1951 1.73 05/02/1952 3.12 05/20/1953 2.01 06/14/1954 1.26 06/14/1955 1.70 04/23/1956 1.08 06/02/1957 2.23 06/07/1958 2.29 05/20/1959 2.84 05/22/2002 2.32 04/15/2003 1.84 05/12/2004 2.20 06/01/2005 2.03 05/27/2006 2.54 05/19/2007 2.25 05/22/2008 2.83 06/03/2009 1.86 05/29/2010 2.66 05/21/2011 2.59 05/10/2012 1.55 09/14/2013 2.47 08/12/2014 2.18 05/13/2015 2.58 05/09/2016 1.96 09/15/2017 2.29 06/01/2018 3.92 05/08/2019 1.50 05/30/2020 2.91 08/03/2021 2.06 Duration: 30 days 05/15/1949 4.17 06/13/1950 1.96 05/08/1951 2.21 04/29/1952 3.47 05/19/1953 2.10 06/05/1954 1.74 04/26/1955 2.40 12/19/1955 1.32 05/19/1957 3.20 06/01/1958 3.15 06/04/1959 3.42 05/26/2002 2.75 04/14/2003 2.30 05/13/2004 2.87 05/09/2005 3.22 05/19/2006 2.92 05/19/2007 2.47 05/07/2008 3.28 06/05/2009 1.96 05/19/2010 4.04 05/17/2011 3.06 05/08/2012 1.68 09/04/2013 2.91 08/13/2014 2.22 05/06/2015 3.23 05/20/2016 2.39 05/17/2017 2.81 06/01/2018 5.02 05/16/2019 2.15 06/07/2020 3.42 07/29/2021 2.26 Duration: 45 days 05/15/1949 5.55 07/01/1950 2.71 04/30/1951 2.73 04/29/1952 4.02 04/29/1953 2.45 05/21/1954 2.26 05/22/1955 3.18 04/23/1956 1.58 05/09/1957 3.88 05/24/1958 4.00 05/16/1959 4.58 05/22/2002 3.15 03/30/2003 2.86 05/16/2004 3.30 05/08/2005 3.95 05/19/2006 3.26 09/13/2006 2.74 04/24/2008 3.77 05/30/2009 2.94 05/20/2010 4.75 05/06/2011 3.98 04/27/2012 2.02 08/21/2013 3.17 07/11/2014 2.57 04/16/2015 3.71 04/13/2016 2.99 05/08/2017 3.34 05/20/2018 6.11 05/08/2019 2.69 05/16/2020 3.83 07/14/2021 2.44 Duration: 60 days 05/15/1949 6.00 06/14/1950 3.47 07/29/1951 3.00 05/02/1952 4.80 04/06/1953 2.94 05/16/1954 2.37 04/26/1955 3.99 05/05/1956 2.07 05/04/1957 4.05 04/27/1958 4.82 05/16/1959 5.03 05/31/2002 3.63 04/23/2003 3.50 05/18/2004 4.06 04/14/2005 5.27 03/30/2006 3.84 04/16/2007 3.18 04/20/2008 3.95 06/03/2009 3.22 05/06/2010 5.32 04/14/2011 4.37 04/01/2012 2.92 08/11/2013 3.34 07/03/2014 2.98 04/06/2015 4.27 04/21/2016 3.28 05/13/2017 3.90 05/02/2018 7.21 05/18/2019 3.34 05/01/2020 4.67 07/02/2021 2.60