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Period of Record Monthly Statistics for 301832092234501 - Ac-326
Annual monthly statistics of approved data for all data types.
Report date: 10/13/2019 6:09:41 AM

Note: Monthly medians are calculated for months having 10 or more month/years of data

Tip: Click the median value to view its component water-levels.

This table is sorted by 1) Month and 2) Median Value (ascending)
#     MonthYearMedian# of values
 1     Jan1965 51.37 7
 2     Jan1966 52.91 6
 3     Jan1967 53.13 6
 4     Jan1968 54.60 2
 5     Jan1980 56.22 6
 6     Jan1969 57.05 8
 7     Jan1990 57.88 1
 8     Jan1986 58.53 1
 9     Jan1987 58.72 7
10    Jan1981 58.80 7
11    Jan1979 59.11 7
12    Jan1971 59.29 3
13    Jan1989 59.47 6
14    Jan1984 60.01 7
15    Jan1985 60.14 7
16    Jan1972 60.28 7
17    Jan1988 60.40 6
18    Jan1970 60.43 1
19    Jan1978 60.54 7
20    Jan1976 60.90 7
21    Jan1973 60.99 6
22    Jan1977 61.01 6
23    Jan1974 61.70 6
24    Jan1982 62.20 7
25    Jan1983 63.01 7
26    Jan1975 63.58 2
27    Jan1997 64.48 1
28    Jan1994 65.32 1
29    Jan1998 66.83 1
30    Jan1999 70.83 1
31    Jan2004 76.00 32
32    Jan2005 76.59 1
33    Jan2003 76.71 33
34    Jan2000 76.89 1
35    Jan2002 77.24 37
36    Jan2001 78.19 38
37    Jan2016 81.84 1
38    Jan2015 82.45 32
39    Jan2014 83.09 31
Jan Median = 60.9      39 month-years    

 1     Feb1965 49.61 7
 2     Feb1966 51.23 7
 3     Feb1967 51.63 7
 4     Feb1968 53.29 5
 5     Feb1980 54.23 6
 6     Feb1969 55.23 2
 7     Feb1981 57.28 7
 8     Feb1986 57.52 6
 9     Feb1987 57.64 6
10    Feb1979 57.77 7
11    Feb1971 57.86 1
12    Feb1970 58.22 2
13    Feb1989 58.42 7
14    Feb1972 58.60 8
15    Feb1984 58.70 7
16    Feb1985 58.83 6
17    Feb1978 59.17 7
18    Feb1973 59.40 6
19    Feb1977 59.68 7
20    Feb1976 59.82 6
21    Feb1988 59.86 7
22    Feb1974 60.16 6
23    Feb1991 60.22 1
24    Feb1995 60.96 1
25    Feb1982 61.26 6
26    Feb1975 61.33 1
27    Feb1983 61.73 6
28    Feb1996 63.18 1
29    Feb1993 65.35 1
30    Feb1992 69.04 1
31    Feb2003 71.39 28
32    Feb2008 71.60 1
33    Feb2007 73.06 1
34    Feb2004 74.22 29
35    Feb2006 75.41 1
36    Feb2002 76.33 36
37    Feb2001 76.40 34
38    Feb2018 79.50 1
39    Feb2015 81.36 28
40    Feb2014 81.41 29
41    Feb2019 81.51 1
Feb Median = 59.86      41 month-years    

 1     Mar1965 48.68 6
 2     Mar1966 51.10 8
 3     Mar1968 53.48 7
 4     Mar1969 55.22 7
 5     Mar1967 56.28 7
 6     Mar1987 56.80 7
 7     Mar1979 57.55 6
 8     Mar1980 57.59 6
 9     Mar1986 57.88 3
10    Mar1990 58.14 1
11    Mar1985 58.19 3
12    Mar1991 58.43 1
13    Mar1972 58.49 7
14    Mar1984 58.49 5
15    Mar1973 59.03 6
16    Mar1988 59.26 8
17    Mar1970 59.33 1
18    Mar1989 60.07 8
19    Mar1976 60.29 8
20    Mar1977 60.71 8
21    Mar1983 61.38 6
22    Mar1982 61.70 7
23    Mar1981 62.30 7
24    Mar1978 62.73 7
25    Mar1974 63.22 6
26    Mar1975 63.38 8
27    Mar1971 67.99 3
28    Mar2010 72.40 1
29    Mar2003 75.12 30
30    Mar2004 75.36 31
31    Mar2009 76.19 1
32    Mar2001 76.47 37
33    Mar2000 77.32 1
34    Mar2002 78.18 37
35    Mar2015 79.73 31
36    Mar2014 79.95 31
Mar Median = 60.18      36 month-years    

 1     Apr1966 60.76 6
 2     Apr1980 61.43 6
 3     Apr1990 61.58 1
 4     Apr1969 62.51 6
 5     Apr1973 62.97 6
 6     Apr1979 63.00 6
 7     Apr1991 64.62 1
 8     Apr1965 64.75 4
 9     Apr1983 64.98 6
10    Apr1986 65.00 1
11    Apr1967 65.21 7
12    Apr1985 65.23 6
13    Apr1988 65.35 6
14    Apr1989 65.40 6
15    Apr1987 66.12 7
16    Apr1977 66.79 6
17    Apr1970 67.44 6
18    Apr1976 68.41 6
19    Apr1975 68.59 7
20    Apr1968 68.80 5
21    Apr1982 69.01 6
22    Apr1992 69.32 1
23    Apr1974 69.33 6
24    Apr1972 69.74 7
25    Apr1978 70.31 7
26    Apr1981 70.35 7
27    Apr1996 70.51 1
28    Apr1997 70.95 1
29    Apr1971 73.88 5
30    Apr1998 75.73 1
31    Apr2007 77.24 1
32    Apr2003 77.81 31
33    Apr2005 77.98 1
34    Apr2018 79.55 1
35    Apr2001 79.84 37
36    Apr2004 79.97 31
37    Apr2002 79.98 36
38    Apr2013 80.00 1
39    Apr1999 80.26 1
40    Apr2015 80.36 31
41    Apr2014 82.52 31
42    Apr2006 83.47 1
Apr Median = 69.17      42 month-years    

 1     May1994 62.55 1
 2     May1993 62.61 1
 3     May1980 65.29 7
 4     May1966 66.29 3
 5     May1973 67.51 6
 6     May1979 67.97 6
 7     May1985 68.06 4
 8     May1967 68.28 7
 9     May1965 68.54 7
10    May1983 69.45 7
11    May1972 69.52 7
12    May1986 69.76 2
13    May1989 70.15 6
14    May1995 70.15 1
15    May1987 70.18 7
16    May1964 70.60 3
17    May1984 70.85 8
18    May1982 71.29 6
19    May1975 71.38 7
20    May1970 72.21 8
21    May1981 72.80 7
22    May1968 72.89 7
23    May1976 73.65 7
24    May1977 75.35 6
25    May1988 75.85 6
26    May2008 75.96 1
27    May1971 75.98 7
28    May1974 77.05 6
29    May1978 77.50 7
30    May2009 77.91 1
31    May2004 79.99 31
32    May2015 82.11 31
33    May2016 82.21 1
34    May2010 83.91 1
35    May2003 84.77 31
36    May2001 85.56 37
37    May2013 85.57 13
38    May2000 87.47 20
39    May2002 88.07 36
40    May2014 88.57 31
May Median = 72.5      40 month-years    

 1     Jun1987 69.23 7
 2     Jun1986 69.44 6
 3     Jun1983 70.41 7
 4     Jun1989 70.78 8
 5     Jun1979 72.35 7
 6     Jun1985 72.47 6
 7     Jun1980 72.74 7
 8     Jun1984 73.50 7
 9     Jun1966 73.78 9
10    Jun1965 73.86 7
11    Jun1981 74.06 7
12    Jun1967 75.14 6
13    Jun1970 75.40 8
14    Jun1976 75.41 7
15    Jun1975 75.55 7
16    Jun1988 75.86 8
17    Jun1982 76.03 6
18    Jun1964 76.14 7
19    Jun1978 76.76 6
20    Jun1968 77.25 7
21    Jun1969 77.31 7
22    Jun1977 77.49 6
23    Jun1972 77.88 6
24    Jun1973 78.54 4
25    Jun1971 79.68 8
26    Jun1974 82.22 7
27    Jun2017 82.40 1
28    Jun2004 83.27 30
29    Jun2015 83.53 30
30    Jun2019 84.30 1
31    Jun2001 86.13 38
32    Jun2003 86.53 30
33    Jun2013 86.61 30
34    Jun2014 88.21 30
35    Jun2000 89.70 38
36    Jun2002 90.49 37
Jun Median = 76.45      36 month-years    

 1     Jul1991 63.61 1
 2     Jul1987 65.15 6
 3     Jul1989 66.01 3
 4     Jul1964 69.03 7
 5     Jul1993 69.32 1
 6     Jul1994 69.42 1
 7     Jul1986 69.92 5
 8     Jul1983 70.37 7
 9     Jul1981 70.51 7
10    Jul1966 70.88 7
11    Jul1979 71.93 3
12    Jul1965 72.22 7
13    Jul1985 72.30 7
14    Jul1984 72.79 7
15    Jul1967 72.80 7
16    Jul1975 73.69 2
17    Jul1988 73.72 6
18    Jul1982 74.75 7
19    Jul1976 75.44 6
20    Jul1980 75.74 7
21    Jul1995 76.18 1
22    Jul1997 76.28 1
23    Jul2007 76.38 1
24    Jul1971 77.26 8
25    Jul1970 77.30 7
26    Jul1977 78.50 7
27    Jul1990 78.53 1
28    Jul1978 78.93 7
29    Jul1968 79.96 4
30    Jul1972 80.12 8
31    Jul2004 80.44 32
32    Jul1973 81.16 6
33    Jul1969 81.18 3
34    Jul1999 81.31 1
35    Jul2006 81.57 1
36    Jul2010 81.68 1
37    Jul2003 82.15 32
38    Jul1974 82.69 5
39    Jul2015 83.01 32
40    Jul2001 83.89 37
41    Jul2005 86.34 1
42    Jul2000 86.52 37
43    Jul2014 86.97 32
44    Jul2002 87.48 38
45    Jul2018 87.83 1
46    Jul2013 88.17 34
Jul Median = 76.82      46 month-years    

 1     Aug1989 63.45 1
 2     Aug1964 63.49 5
 3     Aug1987 64.26 7
 4     Aug1966 64.53 6
 5     Aug1965 66.98 6
 6     Aug1983 67.01 6
 7     Aug1985 67.59 6
 8     Aug1986 68.38 8
 9     Aug1988 68.45 7
10    Aug1981 69.02 7
11    Aug1984 69.17 7
12    Aug1979 69.22 7
13    Aug1967 69.23 6
14    Aug1980 69.97 6
15    Aug1975 70.15 5
16    Aug1982 70.59 7
17    Aug1968 71.18 7
18    Aug1971 71.61 7
19    Aug1970 72.02 8
20    Aug1977 72.17 6
21    Aug1969 72.59 2
22    Aug1978 72.88 6
23    Aug1976 73.84 7
24    Aug1996 75.34 1
25    Aug1972 75.38 7
26    Aug1973 77.72 6
27    Aug1974 78.26 7
28    Aug2008 79.66 1
29    Aug2004 80.51 31
30    Aug2003 80.98 31
31    Aug2009 82.13 1
32    Aug1998 82.79 1
33    Aug2015 83.03 31
34    Aug2001 83.15 37
35    Aug2002 84.21 37
36    Aug2014 84.47 31
37    Aug2000 85.37 38
38    Aug2012 85.55 1
39    Aug2013 85.86 31
Aug Median = 72.17      39 month-years    

 1     Sep1965 59.79 3
 2     Sep1964 60.34 8
 3     Sep1966 61.41 8
 4     Sep1989 62.75 1
 5     Sep1967 63.32 7
 6     Sep1985 64.36 6
 7     Sep1987 64.53 6
 8     Sep1979 65.33 6
 9     Sep1988 65.52 6
10    Sep1968 65.89 7
11    Sep1983 66.14 6
12    Sep1970 66.85 7
13    Sep1975 67.37 7
14    Sep1977 67.43 7
15    Sep1986 67.55 6
16    Sep1984 67.71 6
17    Sep1971 67.94 6
18    Sep1980 68.28 7
19    Sep1978 68.89 6
20    Sep1976 69.35 6
21    Sep1969 69.39 6
22    Sep1981 69.60 7
23    Sep1982 69.69 7
24    Sep1972 70.53 7
25    Sep1992 71.40 1
26    Sep1974 71.99 2
27    Sep1973 72.17 7
28    Sep2016 79.55 1
29    Sep2003 80.01 30
30    Sep2001 80.31 34
31    Sep2004 81.49 29
32    Sep2019 82.10 1
33    Sep2002 82.13 36
34    Sep2015 82.45 30
35    Sep2014 82.87 30
36    Sep2000 84.94 36
37    Sep2013 85.47 30
Sep Median = 68.89      37 month-years    

 1     Oct1964 56.43 7
 2     Oct1966 58.30 7
 3     Oct1965 58.46 8
 4     Oct1967 59.86 2
 5     Oct1979 62.49 7
 6     Oct1970 63.60 7
 7     Oct1968 63.63 4
 8     Oct1989 63.66 2
 9     Oct1985 64.03 2
10    Oct1980 64.69 8
11    Oct1983 65.10 7
12    Oct1986 65.15 7
13    Oct1987 65.24 7
14    Oct1984 65.28 7
15    Oct1971 65.30 7
16    Oct1975 65.38 8
17    Oct1977 65.83 7
18    Oct1988 66.02 7
19    Oct1978 66.20 8
20    Oct1969 66.50 7
21    Oct1976 66.79 7
22    Oct1972 67.54 6
23    Oct1981 68.01 7
24    Oct1973 68.19 6
25    Oct1990 68.22 1
26    Oct1982 68.39 6
27    Oct1974 70.02 6
28    Oct1996 70.73 1
29    Oct1995 71.12 1
30    Oct1997 72.29 1
31    Oct1998 76.73 1
32    Oct2001 79.64 38
33    Oct2006 80.25 1
34    Oct2003 80.30 31
35    Oct2004 80.97 1
36    Oct1999 81.14 1
37    Oct2005 81.62 1
38    Oct2002 81.67 32
39    Oct2000 84.33 37
40    Oct2014 86.65 32
41    Oct2017 87.18 1
42    Oct2018 87.90 1
43    Oct2015 88.29 27
44    Oct2013 88.79 32
Oct Median = 67.78      44 month-years    

 1     Nov1964 55.45 6
 2     Nov1966 56.65 6
 3     Nov1965 57.19 7
 4     Nov1967 58.73 6
 5     Nov1968 60.95 5
 6     Nov1979 61.32 9
 7     Nov1980 61.63 6
 8     Nov1970 62.14 8
 9     Nov1986 62.80 6
10    Nov1991 62.83 1
11    Nov1984 62.87 7
12    Nov1983 63.02 8
13    Nov1987 63.30 6
14    Nov1971 63.63 8
15    Nov1969 63.76 7
16    Nov1977 63.79 7
17    Nov1975 64.10 7
18    Nov1976 64.75 8
19    Nov1972 64.84 6
20    Nov1988 65.15 6
21    Nov1978 65.40 3
22    Nov1981 65.42 6
23    Nov1973 65.71 7
24    Nov1982 66.56 7
25    Nov1992 66.56 1
26    Nov1974 67.36 6
27    Nov2008 78.06 1
28    Nov2009 78.47 1
29    Nov2007 78.97 1
30    Nov2002 79.46 30
31    Nov2003 79.74 30
32    Nov2001 80.84 36
33    Nov2000 83.81 36
34    Nov2012 86.21 1
35    Nov2014 87.10 30
36    Nov2013 87.14 30
Nov Median = 64.80      36 month-years    

 1     Dec1964 53.27 7
 2     Dec1965 55.08 7
 3     Dec1966 55.53 3
 4     Dec1967 57.82 1
 5     Dec1979 59.06 6
 6     Dec1968 59.10 7
 7     Dec1980 59.62 7
 8     Dec1978 60.53 4
 9     Dec1985 60.77 2
10    Dec1970 60.90 6
11    Dec1984 61.24 6
12    Dec1986 61.32 7
13    Dec1983 61.39 7
14    Dec1987 61.55 6
15    Dec1969 61.90 6
16    Dec1971 62.00 7
17    Dec1977 62.13 7
18    Dec1975 62.39 7
19    Dec1976 62.63 6
20    Dec1972 62.73 6
21    Dec1973 63.58 6
22    Dec1981 63.93 7
23    Dec1988 64.59 7
24    Dec1982 64.80 5
25    Dec1974 65.24 4
26    Dec1993 65.88 1
27    Dec2003 77.64 31
28    Dec2002 78.01 31
29    Dec2001 78.76 37
30    Dec2000 80.50 37
31    Dec2013 84.48 31
32    Dec2014 85.31 31
33    Dec2016 85.69 1
Dec Median = 62.13      33 month-years    

Source: (dbo.sp_MonthYearStats20100317a) - SPC - 1 - lev_va - Comp date: 10/13/2019 6:10:24 AM - Ver: 05-47-0009
  • The data you have obtained are from an automated U.S. Geological Survey database and may be subject to revision. The data are released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its use.
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  • These data may be subject to significant change and are not citeable until reviewed and approved by the U.S. Geological Survey.
  • Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.
  • Information concerning the accuracy and appropriate uses of these data may be obtained from the state contact for the office collecting the data.



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