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Realtime Great Lakes Weather Data and Marine Observations

 CLSM4: NWS St.ClairShoresMI                                  
CMAN Station
Lat: 42.47°, Lon: -82.88°
Elevation: 175 m
Anemometer Height: 10 m
Related Site: NDBC
Station Types
(Click on name to view all stations for that type)
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Lt Blue MarkerBuoys
Red MarkerCMAN & USCG Stations
Yellow MarkerShip Reports
Green MarkerSurface Airways Stations

  Change Units to: English | Metric
 Enter New DOY (001-366):  Or Today (339)
 (See also Tables for determining DOY for a given date)
View multiple days of data for this station:
Select Year and Day of Year (DOY) range:
Year (4-digits):   First Day (001-366):   Last Day (001-366):  
Additional Data Archive: NDBC Historical Data

Metadata | Description of Measurements (NDBC)
All 9s in field = missing data 

                                       Change Units to English | Metric
                         AIR   DEW WND  WND  WND CLD SOLAR   BAR    WAT  WAV  WAV   N     W    
-------GMT-              TMP   PT  DIR  SPD  GST CVR  RAD    PRES   TMP  HGT  PER  LAT   LON   
YYYYDDDHHMM#ID            C     C  Deg  m/s  m/s  %   W/m2    mb     C    m    s  d.deg d.deg   
202531800001CLSM4   39   7.1 999.9 270  1.0  1.5 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
202531800101CLSM4   39   6.6 999.9 280  1.0  1.0 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531800201CLSM4   39   6.6 999.9 300  0.5  1.0 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531800301CLSM4   39   6.2 999.9   0  0.0  1.0 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531800401CLSM4   39   6.2 999.9 310  1.0  1.5 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531800501CLSM4   39   6.0 999.9 300  1.0  1.0 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801001CLSM4   39   5.0 999.9 250  1.5  1.5 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801101CLSM4   39   4.9 999.9 250  1.0  1.5 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801201CLSM4   39   4.7 999.9 270  1.5  1.5 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801301CLSM4   39   6.0 999.9 310  1.0  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801401CLSM4   39   5.0 999.9 280  1.0  1.5 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531801501CLSM4   39   4.1 999.9 240  2.1  2.6 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531802001CLSM4   39   4.0 999.9 240  2.1  2.6 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531802101CLSM4   39   3.7 999.9 240  1.5  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531802201CLSM4   39   3.7 999.9 250  2.6  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531802301CLSM4   39   4.1 999.9 260  2.1  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531802401CLSM4   39   4.2 999.9 260  2.6  3.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531802501CLSM4   39   4.9 999.9 260  3.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803001CLSM4   39   5.3 999.9 260  2.6  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803101CLSM4   39   5.3 999.9 270  3.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803201CLSM4   39   5.3 999.9 270  3.1  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803301CLSM4   39   5.1 999.9 280  2.6  3.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803401CLSM4   39   5.0 999.9 280  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531803501CLSM4   39   5.1 999.9 280  2.6  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804001CLSM4   39   5.0 999.9 280  2.6  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804101CLSM4   39   4.9 999.9 290  3.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804201CLSM4   39   4.9 999.9 280  2.6  4.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804301CLSM4   39   4.9 999.9 280  3.1  4.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804401CLSM4   39   4.8 999.9 280  2.6  4.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531804501CLSM4   39   4.6 999.9 280  3.1  3.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531805001CLSM4   39   4.5 999.9 280  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531805101CLSM4   39   4.5 999.9 280  3.1  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531805201CLSM4   39   4.3 999.9 280  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531805301CLSM4   39   4.3 999.9 290  3.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531805401CLSM4   39   4.1 999.9 280  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531805501CLSM4   39   4.0 999.9 290  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531806001CLSM4   39   3.8 999.9 280  2.6  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531806101CLSM4   39   3.8 999.9 280  3.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531806201CLSM4   39   3.7 999.9 270  2.6  4.1 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531806301CLSM4   39   3.6 999.9 280  3.1  4.1 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531806401CLSM4   39   3.6 999.9 280  2.6  3.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531806501CLSM4   39   3.4 999.9 270  2.6  3.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807001CLSM4   39   3.4 999.9 270  3.1  3.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807101CLSM4   39   3.3 999.9 270  2.6  3.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807201CLSM4   39   3.1 999.9 270  2.1  3.1 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807301CLSM4   39   2.9 999.9 270  2.1  2.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807401CLSM4   39   2.7 999.9 260  1.5  2.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531807501CLSM4   39   2.5 999.9 260  2.1  2.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531808001CLSM4   39   2.5 999.9 260  1.5  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531808101CLSM4   39   2.5 999.9 260  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531808201CLSM4   39   2.7 999.9 250  1.0  1.5 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531808301CLSM4   39   2.8 999.9   0  0.0  1.5 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531808401CLSM4   39   2.8 999.9   0  0.0  0.0 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531808501CLSM4   39   3.0 999.9   0  0.0  0.0 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531809001CLSM4   39   3.0 999.9   0  0.0  0.0 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531809101CLSM4   39   3.1 999.9 200  1.0  1.0 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531809201CLSM4   39   3.1 999.9 170  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531809301CLSM4   39   3.2 999.9 210  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531809401CLSM4   39   3.3 999.9 170  1.5  2.1 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531809501CLSM4   39   3.6 999.9 220  1.5  2.6 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531810001CLSM4   39   3.6 999.9 180  1.0  1.5 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531810101CLSM4   39   3.7 999.9 170  1.5  2.1 999 9999.9 1021.3 99.9 99.9 99.9 99.99 99.99
202531810201CLSM4   39   3.8 999.9 180  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531810301CLSM4   39   3.9 999.9 160  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531810401CLSM4   39   4.0 999.9 160  1.5  2.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531810501CLSM4   39   4.2 999.9 200  1.0  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811001CLSM4   39   4.3 999.9 190  1.5  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811101CLSM4   39   4.3 999.9 200  1.0  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811201CLSM4   39   4.2 999.9 210  2.6  3.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811301CLSM4   39   4.2 999.9 220  2.6  4.1 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811401CLSM4   39   4.1 999.9 230  2.1  3.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531811501CLSM4   39   4.1 999.9 230  1.0  2.6 999 9999.9 1021.0 99.9 99.9 99.9 99.99 99.99
202531812001CLSM4   39   4.0 999.9 190  1.0  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531812101CLSM4   39   4.0 999.9 180  1.0  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531812201CLSM4   39   3.9 999.9 200  1.5  2.6 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531812301CLSM4   39   3.9 999.9 200  1.5  3.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531812401CLSM4   39   3.9 999.9 200  2.1  3.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531812501CLSM4   39   4.0 999.9 190  1.5  3.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531813001CLSM4   39   4.1 999.9 190  1.5  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531813101CLSM4   39   4.2 999.9 170  1.0  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531813201CLSM4   39   4.4 999.9 190  1.0  2.1 999 9999.9 1020.7 99.9 99.9 99.9 99.99 99.99
202531813301CLSM4   39   4.6 999.9 180  1.5  2.1 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531813401CLSM4   39   5.4 999.9 180  1.5  2.1 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531813501CLSM4   39   6.7 999.9 180  2.1  3.6 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531814001CLSM4   39   7.4 999.9 190  2.1  2.6 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
202531814101CLSM4   39   6.7 999.9 190  2.1  4.1 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
202531814201CLSM4   39   7.0 999.9 200  3.6  5.1 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
202531814301CLSM4   39   7.2 999.9 200  3.6  5.7 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
202531814401CLSM4   39   7.2 999.9 200  4.6  5.7 999 9999.9 1019.6 99.9 99.9 99.9 99.99 99.99
202531814501CLSM4   39   7.7 999.9 210  4.1  5.7 999 9999.9 1019.6 99.9 99.9 99.9 99.99 99.99
202531815001CLSM4   39   8.0 999.9 190  2.6  6.7 999 9999.9 1019.6 99.9 99.9 99.9 99.99 99.99
202531815101CLSM4   39   8.6 999.9 200  2.1  5.7 999 9999.9 1019.6 99.9 99.9 99.9 99.99 99.99
202531815201CLSM4   39   8.5 999.9 190  4.1  6.7 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99
202531815301CLSM4   39   9.1 999.9 210  4.6  7.2 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99
202531815401CLSM4   39   8.9 999.9 200  3.6  6.2 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99
202531815501CLSM4   39   9.6 999.9 190  2.6  5.7 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99
202531816001CLSM4   39   9.6 999.9 210  4.1  5.1 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99
202531816401CLSM4   39  11.1 999.9 160  3.6  4.6 999 9999.9 1018.6 99.9 99.9 99.9 99.99 99.99
202531816501CLSM4   39  11.3 999.9 190  3.1  5.7 999 9999.9 1018.6 99.9 99.9 99.9 99.99 99.99
202531817001CLSM4   39  11.0 999.9 190  3.6  6.2 999 9999.9 1018.3 99.9 99.9 99.9 99.99 99.99
202531817101CLSM4   39  11.2 999.9 190  3.1  5.1 999 9999.9 1017.9 99.9 99.9 99.9 99.99 99.99
202531817201CLSM4   39  11.7 999.9 180  2.1 10.3 999 9999.9 1017.6 99.9 99.9 99.9 99.99 99.99
202531817201CLSM4   39  11.7 999.9 180  2.1  6.7 999 9999.9 1017.6 99.9 99.9 99.9 99.99 99.99
202531817301CLSM4   39  11.8 999.9 160  3.1  5.7 999 9999.9 1017.3 99.9 99.9 99.9 99.99 99.99
202531817401CLSM4   39  10.8 999.9 150  5.1  5.7 999 9999.9 1016.9 99.9 99.9 99.9 99.99 99.99
202531817501CLSM4   39  10.8 999.9 150  4.6  5.7 999 9999.9 1016.6 99.9 99.9 99.9 99.99 99.99
202531818001CLSM4   39   9.9 999.9 140  4.6  5.7 999 9999.9 1016.6 99.9 99.9 99.9 99.99 99.99
202531818101CLSM4   39   8.1 999.9 140  3.6  5.1 999 9999.9 1016.3 99.9 99.9 99.9 99.99 99.99
202531818201CLSM4   39   7.7 999.9 130  3.6  4.1 999 9999.9 1016.3 99.9 99.9 99.9 99.99 99.99
202531818301CLSM4   39   7.6 999.9 130  3.6  4.6 999 9999.9 1015.9 99.9 99.9 99.9 99.99 99.99
202531818401CLSM4   39   7.7 999.9 130  3.6  4.1 999 9999.9 1015.9 99.9 99.9 99.9 99.99 99.99
202531818501CLSM4   39   7.6 999.9 130  3.6  4.1 999 9999.9 1015.6 99.9 99.9 99.9 99.99 99.99
202531819001CLSM4   39   7.6 999.9 130  4.1  4.1 999 9999.9 1015.2 99.9 99.9 99.9 99.99 99.99
202531819101CLSM4   39   7.2 999.9 120  3.6  4.1 999 9999.9 1015.2 99.9 99.9 99.9 99.99 99.99
202531819201CLSM4   39   7.6 999.9 130  3.6  4.1 999 9999.9 1014.9 99.9 99.9 99.9 99.99 99.99
202531819301CLSM4   39   7.6 999.9 130  3.1  4.1 999 9999.9 1014.9 99.9 99.9 99.9 99.99 99.99
202531819401CLSM4   39   7.2 999.9 130  2.6  3.1 999 9999.9 1014.9 99.9 99.9 99.9 99.99 99.99
202531819501CLSM4   39   7.3 999.9 140  2.6  3.1 999 9999.9 1014.6 99.9 99.9 99.9 99.99 99.99
202531820001CLSM4   39   7.7 999.9 150  3.1  3.6 999 9999.9 1014.6 99.9 99.9 99.9 99.99 99.99
202531820101CLSM4   39   7.9 999.9 130  3.1  3.6 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531820201CLSM4   39   9.2 999.9 150  3.1  4.6 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531820301CLSM4   39   8.8 999.9 140  4.1  4.6 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531820401CLSM4   39   8.6 999.9 150  4.1  4.6 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531820501CLSM4   39   8.7 999.9 150  3.6  4.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531821001CLSM4   39   8.4 999.9 160  2.6  4.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531821101CLSM4   39   8.2 999.9 150  2.6  3.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531821201CLSM4   39   8.4 999.9 150  2.1  3.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531821301CLSM4   39   9.1 999.9 160  1.5  3.1 999 9999.9 1013.9 99.9 99.9 99.9 99.99 99.99
202531821401CLSM4   39   8.4 999.9 150  1.5  2.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531821501CLSM4   39   7.9 999.9 150  1.5  2.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822001CLSM4   39   8.1 999.9 150  1.0  2.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822101CLSM4   39   8.3 999.9   0  0.0  0.0 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822201CLSM4   39   8.7 999.9 170  0.5  1.0 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822301CLSM4   39   8.2 999.9 120  2.1  2.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822401CLSM4   39   8.0 999.9 150  2.1  2.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531822501CLSM4   39   8.0 999.9 140  2.6  2.6 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531823001CLSM4   39   7.4 999.9 130  3.1  3.1 999 9999.9 1014.2 99.9 99.9 99.9 99.99 99.99
202531823401CLSM4   39   7.6 999.9 280  1.5  2.1 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
202531823501CLSM4   39   7.5 999.9 280  1.5  2.1 999 9999.9 1020.3 99.9 99.9 99.9 99.99 99.99
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