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Period of Record Monthly Statistics for 323458092275101 - L-68
Annual monthly statistics of approved data for all data types.
Report date: 6/9/2019 10:41:56 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     Jan1970 190.09 1
 2     Jan1971 192.38 1
 3     Jan1991 232.34 1
 4     Jan2005 258.82 2
 5     Jan2010 258.92 28
 6     Jan2004 259.61 1
 7     Jan2003 259.62 1
 8     Jan2011 260.11 32
 9     Jan2009 261.74 33
10    Jan2015 262.28 1
11    Jan2016 263.28 1
12    Jan2014 263.72 1
13    Jan2008 263.73 1
14    Jan2018 264.08 1
15    Jan2007 264.23 2
16    Jan2017 264.49 1
17    Jan2012 264.75 34
18    Jan2006 265.07 1
Jan Median = 262.01      18 month-years    

 1     Feb1973 193.71 1
 2     Feb1980 213.10 1
 3     Feb2010 258.43 28
 4     Feb2011 259.87 28
 5     Feb2009 260.48 28
 6     Feb2019 262.95 1
 7     Feb2012 264.41 29

 1     Mar1970 185.04 1
 2     Mar1976 202.65 1
 3     Mar1977 204.78 1
 4     Mar1978 206.76 1
 5     Mar1979 211.06 1
 6     Mar1981 212.00 1
 7     Mar1982 219.88 1
 8     Mar1983 221.21 1
 9     Mar1984 224.46 1
10    Mar1985 225.46 1
11    Mar1986 227.46 1
12    Mar1987 230.00 1
13    Mar2010 258.03 31
14    Mar2009 259.31 31
15    Mar2011 259.75 31
16    Mar2012 264.47 32
Mar Median = 222.84      16 month-years    

 1     Apr1970 189.86 1
 2     Apr1975 200.62 1
 3     Apr1985 225.83 1
 4     Apr2001 256.34 1
 5     Apr2002 257.75 1
 6     Apr2004 257.99 1
 7     Apr2009 258.01 31
 8     Apr2005 258.12 1
 9     Apr2010 258.14 30
10    Apr2011 259.73 31
11    Apr2003 260.48 1
12    Apr2015 260.88 1
13    Apr2008 261.64 1
14    Apr2014 261.80 1
15    Apr2018 262.05 1
16    Apr2019 262.07 1
17    Apr2016 262.73 1
18    Apr2007 263.22 1
19    Apr2013 263.37 1
20    Apr2006 263.72 1
21    Apr2012 264.20 31
Apr Median = 260.48      21 month-years    

 1     May1969 186.11 1
 2     May1970 189.41 1
 3     May1975 200.38 1
 4     May1977 204.82 1
 5     May1980 212.56 1
 6     May1989 227.34 1
 7     May2009 257.56 30
 8     May2010 258.54 24
 9     May2011 262.89 31
10    May2017 263.99 1
11    May2012 264.56 31
May Median = 227.34      11 month-years    

 1     Jun1971 194.14 1
 2     Jun1997 248.54 1
 3     Jun2000 257.38 1
 4     Jun2009 257.91 30
 5     Jun2010 259.50 14
 6     Jun2005 261.41 2
 7     Jun2011 264.89 30
 8     Jun2012 265.74 30

 1     Jul1970 188.70 1
 2     Jul1969 189.28 1
 3     Jul1993 241.38 1
 4     Jul2004 258.12 1
 5     Jul2009 258.34 32
 6     Jul2003 258.90 1
 7     Jul2002 259.01 1
 8     Jul2010 260.97 31
 9     Jul2015 261.47 1
10    Jul2008 262.12 1
11    Jul2014 263.22 2
12    Jul2007 263.91 1
13    Jul2013 264.04 1
14    Jul2005 264.22 2
15    Jul2017 264.42 1
16    Jul2016 264.45 1
17    Jul2018 264.46 1
18    Jul2011 264.76 32
19    Jul2006 265.00 1
20    Jul2012 267.15 31
Jul Median = 262.67      20 month-years    

 1     Aug1970 190.77 1
 2     Aug1973 194.21 1
 3     Aug1982 217.07 1
 4     Aug1981 219.58 1
 5     Aug2009 259.72 30
 6     Aug2010 260.50 32
 7     Aug2015 264.29 1
 8     Aug2011 265.83 27
 9     Aug2012 267.70 31

 1     Sep1968 185.46 1
 2     Sep1969 186.02 1
 3     Sep1975 201.93 1
 4     Sep1976 204.74 1
 5     Sep1977 206.44 1
 6     Sep1978 210.61 1
 7     Sep1979 212.46 1
 8     Sep1980 215.90 1
 9     Sep1983 221.43 1
10    Sep1984 226.31 1
11    Sep1985 227.26 1
12    Sep1986 230.16 1
13    Sep1987 231.44 1
14    Sep2009 259.13 27
15    Sep2010 261.05 30
16    Sep2008 266.21 5
17    Sep2012 266.67 30
Sep Median = 221.43      17 month-years    

 1     Oct1970 191.10 1
 2     Oct1974 201.02 1
 3     Oct1996 249.60 1
 4     Oct2009 258.58 16
 5     Oct2004 259.68 1
 6     Oct2003 260.15 1
 7     Oct2002 260.46 1
 8     Oct2010 261.05 32
 9     Oct2018 263.93 1
10    Oct2007 265.08 1
11    Oct2013 265.10 1
12    Oct2016 265.25 1
13    Oct2017 265.40 1
14    Oct2008 265.51 24
15    Oct2015 265.61 1
16    Oct2012 265.94 19
17    Oct2006 265.95 1
18    Oct2005 266.47 1
Oct Median = 264.51      18 month-years    

 1     Nov1970 192.39 1
 2     Nov1974 201.28 1
 3     Nov2010 261.58 30
 4     Nov2011 265.92 1
 1     Dec1969 189.34 1
 2     Dec1970 192.50 1
 3     Dec2010 260.79 31
 4     Dec2014 262.83 1
 5     Dec2008 262.88 24
 6     Dec2011 265.45 30

Source: (dbo.sp_MonthYearStats20100317a) - SPC - 3 - lev_va - Comp date: 6/9/2019 10:42:14 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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