Monthly Summary
13 Aug 2020 11:46 UTC 2020226+11:46 UTC

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022: Galveston Pier 21
Galveston Bay, Texas
29° 18' 35" N   94° 47' 29" W
PIER21
87714501
National Oceanic and Atmospheric Administration (NOAA)
National Water Level Observation Network (NWLON)
NOAA

Monthly Summary - Sep 2008 updated 2008282+1521 by dmartin
All Months - Graph Data
Month graph

Month Statistics

Good values       6595 ( 91.6%)    Computed Grade: B
Missing values      79 (  1.1%)    Assigned Grade: 
Removed values     526 (  7.3%)

Highest elev.   3352mm (11.00ft) on 09/12 16.6
Lowest elev.     1176mm ( 3.86ft) on 09/02 05.6

Data Gaps [ 6 ] show | hide

From To Points Hours Days Percent
09/05 06.0 09/05 06.0 1 0.1 0.0 0.0% missing
09/13 10.8 09/15 14.0 513 51.3 2.1 7.1% removed
09/19 22.7 09/19 23.3 7 0.7 0.0 0.1% missing
09/24 06.7 09/24 07.8 12 1.2 0.1 0.2% removed
09/24 07.9 09/24 14.9 71 7.1 0.3 1.0% missing
09/24 15.0 09/24 15.0 1 0.1 0.0 0.0% removed

Tides, High and Low Waters

Day  High  Low Day  High  Low
TimeHeight TimeHeight TimeHeight TimeHeight
01 >11.41918 >5.21631 16  10.51884 >5.81546
            >22.31977  18.11630
02 >12.71558 >5.61180 17  9.81910  5.31712
       16.91457   >23.92035 >16.31580
03  0.81928 >4.51853 18     >17.21551
  >9.31963 >16.91633          
04 >1.11923 >19.21379 19 >1.82024  4.01968
             6.52001 >17.91501
05 >10.61900 >21.61573 20 >9.82111 >20.01536
                   
06 >7.31919 >21.11495 21 >9.02057 >20.81541
                   
07 >11.31933 >21.11497 22 >10.82136 >22.91601
                   
08 >11.91944 >23.31571 23 >10.22153    
                   
09 >14.11995 >23.31593 24 >16.52117 >0.01606
                   
10 >15.72033     25 >7.82168 >1.11720
                   
11 >17.12253 >1.51686 26  8.51984 >2.01681
            >19.41998  15.41898
12 >16.63320 >1.02031 27 >8.81864 >2.11617
             20.81819  16.51674
13         28 >9.31816 >3.51639
            >21.51875  15.71649
14         29  9.61814  4.81696
            >22.81956 >15.51611
15 >22.01846 >17.31746 30  7.91898  3.41853
                >15.51599

Monthly Means

Not yet published