Precipitation annual maximum series (inches)
Station ID: 24-8390
Station name: TROY
State: MT
Latitude (decimal degrees): 48.4806
Longitude (decimal degrees): -115.9061
Elevation (feet): 1929

Duration: 1 hour
09/19/2002    0.15
09/11/2003    0.23
05/20/2004    0.33
06/17/2005    0.40
10/02/2005    0.19
08/31/2007    0.26
06/11/2008    0.19
08/13/2009    0.32
09/21/2010    0.33
01/14/2011    0.26
03/22/2012    0.28
06/19/2013    0.52
02/12/2014    0.27
01/18/2015    0.25
08/07/2016    0.50
06/26/2017    0.29
05/16/2018    0.58
08/10/2019    0.49
05/30/2020    0.36
10/10/2020    0.22

Duration: 2 hours
05/22/2002    0.24
09/19/2003    0.35
05/20/2004    0.53
06/17/2005    0.78
10/02/2005    0.35
05/21/2007    0.32
10/02/2007    0.33
08/13/2009    0.44
06/21/2010    0.40
01/14/2011    0.40
03/22/2012    0.45
06/19/2013    0.72
03/04/2014    0.43
01/18/2015    0.35
08/07/2016    0.54
02/10/2017    0.43
05/16/2018    0.65
01/10/2019    0.53
05/30/2020    0.39
09/12/2021    0.38

Duration: 3 hours
05/22/2002    0.36
09/19/2003    0.36
05/20/2004    0.63
06/17/2005    0.97
10/02/2005    0.46
05/21/2007    0.40
10/02/2007    0.49
06/15/2009    0.59
10/26/2009    0.50
01/14/2011    0.51
03/15/2012    0.51
06/19/2013    0.81
03/04/2014    0.55
01/18/2015    0.42
08/07/2016    0.55
02/10/2017    0.57
05/16/2018    0.74
01/10/2019    0.58
05/13/2020    0.51
09/12/2021    0.47

Duration: 6 hours
05/22/2002    0.71
04/27/2004    0.90
06/17/2005    1.26
11/01/2005    0.62
11/07/2006    0.55
10/02/2007    0.75
06/15/2009    0.84
10/26/2009    0.77
06/08/2011    0.73
03/15/2012    0.74
06/19/2013    0.96
03/16/2014    0.87
03/15/2015    0.73
12/08/2015    0.76
02/10/2017    0.75
05/16/2018    0.80
09/27/2019    0.71
05/12/2020    0.76
09/12/2021    0.54

Duration: 12 hours
05/22/2002    1.12
03/22/2003    0.88
04/27/2004    1.01
06/17/2005    1.28
11/01/2005    0.98
11/07/2006    1.00
12/03/2007    0.86
01/06/2009    1.03
10/26/2009    0.98
06/08/2011    0.83
11/22/2011    1.05
06/19/2013    1.56
03/16/2014    1.17
03/15/2015    1.20
12/08/2015    1.22
10/30/2016    1.00
05/16/2018    0.82
09/27/2019    0.88
05/12/2020    0.82
11/05/2020    0.69

Duration: 1 day
11/25/1894    1.82
02/26/1896    0.93
11/13/1896    2.00
11/19/1897    2.42
09/03/1899    1.13
06/17/1900    1.42
12/20/1900    1.06
07/02/1902    3.12
11/06/1903    1.74
11/20/1904    1.51
11/15/1906    1.60
01/17/1908    1.00
10/14/1908    1.50
09/24/1910    1.30
11/24/1960    1.70
12/17/1961    1.17
11/26/1962    1.70
09/30/1964    0.95
12/22/1964    2.09
01/06/1966    0.95
06/22/1967    1.47
09/18/1968    0.95
05/30/1969    1.41
01/14/1970    1.29
12/07/1970    1.76
01/20/1972    0.95
12/21/1972    0.90
11/12/1974    1.33
12/04/1975    1.87
06/08/1977    1.35
02/02/1978    1.07
01/13/1980    1.45
12/02/1980    1.97
12/06/1981    1.03
07/14/1983    1.31
06/21/1984    1.27
11/02/1984    1.30
08/30/1986    1.84
11/24/1986    1.00
04/07/1988    1.07
11/23/1988    1.07
08/19/1990    1.27
11/25/1990    1.81
05/29/1994    0.85
06/06/1995    1.15
01/06/1996    1.53
07/30/1997    1.97
05/27/1998    3.34
12/28/1998    1.39
11/12/1999    1.75
06/04/2001    0.85
05/21/2002    1.36
12/14/2002    1.12
09/16/2004    1.21
11/02/2004    1.11
01/10/2006    1.19
11/06/2006    1.39
01/06/2009    1.28
06/16/2010    1.10
11/21/2011    1.41
03/15/2015    1.46
05/23/2016    1.74
04/16/2018    0.90
12/21/2020    0.93

Duration: 2 days
11/25/1894    2.01
02/25/1896    1.06
11/13/1896    2.92
11/18/1897    4.40
01/01/1899    1.40
06/16/1900    2.22
12/20/1900    1.36
07/02/1902    4.38
11/06/1903    2.10
11/20/1904    2.26
06/21/1907    2.10
01/17/1908    1.20
10/14/1908    2.60
01/30/1910    1.95
11/24/1960    2.06
12/17/1961    1.29
11/26/1962    1.88
10/21/1963    1.22
12/22/1964    2.46
12/27/1965    1.30
06/22/1967    1.62
12/02/1967    1.45
05/29/1969    1.64
01/13/1970    1.67
12/07/1970    1.94
01/20/1972    1.80
12/26/1972    1.33
01/15/1974    2.58
11/20/1974    1.76
12/03/1975    2.43
06/08/1977    1.49
05/14/1978    1.28
01/12/1980    1.95
12/01/1980    2.93
02/15/1982    1.60
07/13/1983    1.56
06/21/1984    1.44
11/02/1984    1.85
02/15/1986    2.42
11/23/1986    1.38
04/06/1988    1.79
03/10/1989    1.59
01/06/1990    1.70
11/24/1990    2.82
12/08/1993    1.10
06/06/1995    1.96
02/07/1996    2.32
05/26/1998    3.71
12/01/1998    2.05
11/12/1999    2.15
04/02/2001    1.03
05/20/2002    2.29
12/14/2002    1.79
05/20/2004    1.86
12/09/2004    1.66
01/09/2006    1.82
11/05/2006    2.68
01/06/2009    2.42
06/16/2010    1.71
11/22/2011    2.22
03/14/2015    2.27
12/07/2015    1.94
11/21/2017    1.38
10/10/2020    1.10
01/06/2022    2.64

Duration: 3 days
11/25/1894    2.05
02/26/1896    1.40
11/13/1896    4.38
11/17/1897    4.64
01/01/1899    1.70
06/15/1900    2.42
12/19/1900    1.56
07/02/1902    5.03
11/06/1903    2.15
11/20/1904    2.59
06/21/1907    2.14
01/17/1908    1.80
10/13/1908    2.80
11/19/1909    2.45
10/01/1910    2.80
11/23/1960    2.19
12/17/1961    1.45
11/26/1962    1.91
10/21/1963    1.46
12/21/1964    2.59
01/04/1966    1.86
06/22/1967    1.65
12/02/1967    2.17
01/11/1969    2.09
01/13/1970    1.92
12/07/1970    1.98
12/18/1971    2.21
01/12/1973    1.53
01/14/1974    3.36
11/20/1974    2.37
12/02/1975    2.92
06/08/1977    1.52
05/14/1978    1.38
12/02/1979    2.13
12/01/1980    2.99
02/14/1982    2.30
07/13/1983    1.70
11/04/1983    1.76
11/02/1984    2.02
02/15/1986    2.47
11/19/1986    1.76
04/06/1988    1.82
03/09/1989    2.00
08/19/1990    1.93
11/24/1990    3.03
12/08/1993    1.28
06/05/1995    2.29
02/06/1996    3.16
05/26/1998    3.78
11/30/1998    2.26
11/11/1999    2.19
04/02/2001    1.05
05/19/2002    2.45
12/14/2002    2.04
05/20/2004    1.93
12/08/2004    2.09
09/29/2005    2.01
11/04/2006    3.30
01/05/2009    2.60
09/19/2010    1.98
11/22/2011    2.55
03/14/2015    2.49
12/06/2015    2.11
11/22/2017    1.74
10/11/2020    1.87

Duration: 4 days
01/09/1895    2.07
02/25/1896    1.53
11/13/1896    5.37
11/16/1897    4.84
09/03/1899    1.72
06/15/1900    2.45
01/11/1901    1.60
07/01/1902    5.15
11/06/1903    2.45
11/20/1904    2.67
11/12/1906    2.40
01/17/1908    1.82
10/12/1908    3.20
11/19/1909    2.95
10/01/1910    3.02
11/22/1960    2.34
12/21/1961    1.75
01/31/1963    1.98
10/21/1963    1.75
12/20/1964    2.73
01/03/1966    2.13
11/13/1966    1.67
12/02/1967    2.63
01/10/1969    2.29
01/12/1970    1.97
12/04/1970    2.00
12/18/1971    2.91
12/18/1972    1.65
01/13/1974    4.15
11/20/1974    2.48
12/01/1975    3.33
06/08/1977    1.53
05/14/1978    1.60
12/02/1979    2.63
12/01/1980    3.02
02/14/1982    2.47
07/13/1983    1.75
11/03/1983    2.06
11/01/1984    2.12
02/15/1986    2.49
11/21/1986    2.34
04/04/1988    1.84
03/09/1989    2.09
01/06/1990    2.47
11/22/1990    3.34
12/08/1993    1.29
06/04/1995    2.46
02/06/1996    3.89
05/27/1998    3.85
11/30/1998    2.36
11/10/1999    2.31
03/31/2001    1.22
05/19/2002    2.48
12/13/2002    2.12
09/15/2004    2.26
12/07/2004    2.29
01/09/2006    2.47
11/03/2006    3.67
01/05/2009    2.71
06/16/2010    2.50
03/12/2012    2.89
03/14/2015    2.54
12/06/2015    2.37
11/20/2017    2.08
10/11/2020    1.94

Duration: 7 days
11/25/1894    2.84
01/20/1896    1.83
11/11/1896    5.59
11/13/1897    5.81
01/01/1899    1.80
06/14/1900    2.54
12/15/1900    2.06
06/30/1902    5.39
11/06/1903    3.15
11/17/1904    3.05
11/09/1906    2.97
01/17/1908    2.10
01/19/1909    3.82
11/17/1909    3.60
10/01/1910    3.80
11/18/1960    4.11
12/17/1961    2.90
11/26/1962    2.61
01/16/1964    1.91
12/17/1964    3.13
01/01/1966    2.84
11/10/1966    2.15
11/30/1967    3.06
01/07/1969    3.34
01/13/1970    2.31
12/01/1970    2.49
12/16/1971    3.92
12/21/1972    2.50
01/12/1974    6.01
11/18/1974    3.27
12/01/1975    3.47
06/02/1977    1.57
12/09/1977    2.72
12/02/1979    2.66
12/01/1980    3.74
02/14/1982    3.19
01/04/1983    2.83
10/31/1983    2.61
10/27/1984    2.91
11/02/1985    3.01
11/18/1986    3.98
04/02/1988    2.54
03/06/1989    3.10
01/04/1990    3.32
11/22/1990    3.75
12/03/1993    1.77
06/03/1995    2.83
02/04/1996    4.02
12/26/1996    4.71
05/21/1998    5.32
11/26/1998    3.37
11/26/1999    3.00
04/02/2001    1.49
05/17/2002    2.51
12/11/2002    2.46
09/13/2004    2.65
12/04/2004    2.52
01/05/2006    3.15
11/02/2006    4.13
01/01/2009    2.92
06/16/2010    2.80
03/11/2012    3.52
03/12/2015    2.58
12/06/2015    2.86
11/20/2017    2.53
10/11/2020    2.16

Duration: 10 days
11/25/1894    2.90
01/17/1896    2.31
11/08/1896    6.51
11/11/1897    7.06
12/25/1898    2.09
06/16/1900    3.44
12/13/1900    2.22
06/30/1902    5.50
11/06/1903    4.15
11/15/1904    3.40
11/07/1906    3.63
11/21/1907    2.21
01/17/1909    4.67
11/19/1909    3.90
09/24/1910    4.35
11/16/1960    4.98
12/15/1961    3.52
11/26/1962    2.91
01/16/1964    2.91
12/14/1964    3.61
12/28/1965    3.66
11/16/1966    3.01
11/30/1967    3.21
01/06/1969    3.78
01/12/1970    2.69
01/11/1971    3.38
12/13/1971    4.33
12/18/1972    3.25
01/12/1974    6.43
11/12/1974    3.76
11/26/1975    3.72
06/04/1977    1.68
12/06/1977    3.39
12/02/1979    2.93
12/01/1980    4.06
02/12/1982    3.79
01/03/1983    3.04
11/02/1983    2.93
10/25/1984    4.40
10/30/1985    3.45
11/15/1986    4.31
03/29/1988    2.65
03/06/1989    3.16
01/01/1990    3.91
11/22/1990    4.73
12/02/1993    2.19
06/03/1995    3.17
02/04/1996    4.10
12/26/1996    5.15
05/21/1998    5.83
11/22/1998    4.33
11/26/1999    3.11
03/30/2001    1.79
11/27/2001    2.62
12/11/2002    2.53
09/11/2004    2.96
03/27/2005    2.60
01/05/2006    3.95
11/04/2006    4.99
01/05/2009    3.01
06/10/2010    3.30
03/13/2012    4.09
03/02/2014    3.39
03/14/2015    3.16
12/04/2015    3.00
11/16/2017    3.08
10/11/2020    2.37

Duration: 20 days
11/19/1894    3.83
01/07/1896    3.48
10/29/1896    7.72
11/11/1897    8.36
08/20/1899    3.20
06/15/1900    3.99
12/16/1900    3.14
06/30/1902    5.57
11/06/1903    4.78
11/15/1904    3.86
11/04/1906    4.13
01/02/1908    2.70
01/17/1909    5.24
11/02/1909    5.74
11/10/1960    6.30
12/15/1961    4.84
11/16/1962    3.41
10/21/1963    3.66
12/19/1964    5.12
12/24/1965    5.18
11/06/1966    4.63
11/30/1967    3.71
01/02/1969    4.65
01/09/1970    4.67
01/11/1971    4.45
12/03/1971    5.48
12/18/1972    3.60
01/12/1974    7.72
11/06/1974    5.59
11/15/1975    4.69
08/24/1977    1.97
12/01/1977    4.11
12/02/1979    4.81
11/21/1980    4.92
02/12/1982    4.43
12/03/1982    3.67
11/01/1983    4.97
10/25/1984    5.80
10/20/1985    6.17
11/16/1986    5.53
03/20/1988    4.00
11/05/1988    3.86
01/22/1990    4.86
11/22/1990    5.64
11/21/1993    2.93
06/03/1995    4.35
02/04/1996    5.79
12/20/1996    6.24
05/14/1998    6.89
11/13/1998    7.19
10/25/1999    5.29
03/25/2001    2.10
11/14/2001    3.78
12/11/2002    3.85
11/17/2003    3.40
10/15/2004    3.22
12/23/2005    5.51
11/03/2006    7.04
12/25/2008    4.02
06/01/2010    5.20
03/11/2012    6.72
11/19/2012    6.56
03/02/2014    5.24
03/14/2015    3.70
10/30/2015    4.54
10/14/2016    6.21
11/12/2017    4.22
06/17/2019    2.78
12/20/2019    3.65
12/30/2020    3.27

Duration: 30 days
11/25/1894    4.41
12/27/1895    4.45
11/08/1896    8.52
11/09/1897   10.14
12/25/1898    4.04
06/08/1900    4.37
12/16/1900    4.94
06/30/1902    5.57
02/11/1904    5.53
11/16/1904    4.58
03/18/1907    4.75
05/08/1908    3.99
12/27/1908    7.12
11/01/1909    8.39
10/27/1960    7.18
12/05/1961    5.28
11/06/1962    4.50
10/22/1963    4.94
12/09/1964    6.75
12/24/1965    5.60
11/06/1966    6.11
09/14/1968    4.80
01/02/1969    6.17
01/09/1970    4.93
12/28/1970    5.56
12/13/1971    6.09
12/18/1972    5.67
01/12/1974    8.58
11/06/1974    5.68
11/09/1975    5.17
08/24/1977    3.17
11/17/1977    4.98
12/02/1979    5.15
12/01/1980    7.01
02/12/1982    5.95
12/13/1982    5.68
10/31/1983    5.71
10/24/1984    6.39
10/07/1985    6.89
11/06/1986    6.27
03/09/1988    4.61
11/02/1988    4.63
01/04/1990    6.67
11/09/1990    6.66
11/21/1993    2.93
06/03/1995    4.88
01/14/1996    6.53
12/05/1996    8.06
11/12/1998    7.95
11/04/1999    6.48
11/14/2001    4.52
12/11/2002    4.51
08/18/2004    5.37
10/06/2004    3.60
12/22/2005    7.27
11/03/2006    8.65
12/01/2007    4.66
12/13/2008    5.45
05/26/2010    6.51
03/05/2012    7.69
11/19/2012    8.05
02/16/2014    6.95
11/22/2014    5.10
11/12/2015    5.20
10/05/2016    8.40
11/02/2017    5.54
01/15/2019    3.45
12/19/2019    5.39
12/21/2020    4.20

Duration: 45 days
11/29/1894    5.04
12/27/1895    5.65
10/31/1896   10.79
11/02/1897   11.28
12/19/1898    4.74
05/12/1900    6.37
12/06/1900    5.76
05/21/1902    6.57
10/28/1902    9.64
02/07/1904    7.39
11/20/1904    6.39
10/03/1906    6.08
04/25/1908    4.49
12/24/1908    8.64
10/20/1909   10.02
10/21/1960    8.01
11/21/1961    7.57
11/20/1962    5.13
10/21/1963    6.23
11/24/1964    8.93
11/23/1965    7.70
11/05/1966    7.95
11/30/1967    6.33
11/30/1968    7.80
01/09/1970    6.67
12/07/1970    7.16
12/09/1971    9.43
12/18/1972    6.25
11/09/1973   10.85
01/03/1975    6.67
10/25/1975    7.43
08/24/1977    3.92
12/01/1977    6.70
12/02/1979    7.74
11/17/1980    8.37
01/31/1982    6.63
11/28/1982    7.03
10/17/1983    6.33
10/25/1984    7.71
10/03/1985    7.88
10/27/1986    7.04
03/03/1988    5.06
11/02/1988    5.50
01/01/1990    8.89
10/26/1990    8.48
02/07/1994    3.46
11/30/1994    6.22
01/06/1996    9.10
11/18/1996   11.62
11/16/1998    9.39
10/25/1999    8.96
10/22/2001    6.50
12/13/2002    5.65
08/06/2004    6.11
10/15/2004    4.49
12/22/2005    8.82
11/03/2006   10.28
11/27/2007    6.55
12/02/2008    5.52
05/25/2010    7.38
02/17/2012    9.01
10/25/2012    9.83
02/11/2014    7.90
11/22/2014    7.04
10/30/2015    7.89
10/03/2016   10.25
12/17/2017    6.69
12/31/2018    4.98
12/19/2019    6.96
10/11/2020    5.75

Duration: 60 days
11/17/1894    7.12
11/28/1895    6.85
10/29/1896   11.25
11/02/1897   12.78
01/01/1899    5.56
05/11/1900    7.39
11/16/1900    7.54
05/08/1902    9.11
10/28/1902   11.58
02/06/1904    8.47
11/15/1904    7.14
11/04/1906    6.66
05/01/1908    4.87
12/22/1908   10.39
10/20/1909   10.97
09/24/1910   11.79
10/07/1960    8.76
11/21/1961    8.04
10/08/1962    7.02
10/21/1963    7.23
11/09/1964   10.24
11/15/1965   10.13
11/06/1966    8.93
10/11/1967    7.40
12/03/1968    9.45
12/09/1969    7.81
11/21/1970    9.25
12/03/1971   10.39
12/18/1972    6.66
11/21/1973   12.92
11/12/1974    8.77
10/06/1975    9.44
08/04/1977    4.31
11/13/1977    8.14
12/02/1979    7.78
11/02/1980   10.39
02/12/1982    7.99
11/13/1982    8.99
09/28/1983    6.53
10/24/1984    9.33
09/06/1985    9.96
11/06/1986    8.01
02/09/1988    5.69
11/20/1988    6.67
01/01/1990    9.45
10/12/1990   10.04
02/13/1994    4.20
11/01/1994    7.79
01/05/1996   10.68
11/06/1996   13.35
11/12/1998   11.07
10/25/1999   10.90
10/09/2001    7.35
01/26/2003    6.72
08/23/2004    6.88
05/06/2005    4.90
12/21/2005    9.00
10/17/2006   10.72
12/01/2007    8.05
11/10/2008    6.32
05/08/2010    7.66
03/06/2012    9.84
10/23/2012   11.87
09/22/2013    8.57
10/23/2014    8.20
10/27/2015    8.79
09/30/2016   11.21
11/02/2017    8.90
12/16/2018    6.27
12/05/2019    7.78
09/24/2020    6.62