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Realtime Great Lakes Weather Data and Marine Observations


CHII2: GLERL Chicago IL                                  
CMAN Station
Lat: 41.92°, Lon: -87.57°
Elevation: 176 m
Anemometer Height: 26 m
Related Site: NDBC

Related Site: GLERL


Current Time: 0822 GMT
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 (109)
 (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 -------GMT-              TMP   PT  DIR  SPD  GST CVR  RAD    PRES   TMP  HGT  PER YYYYDDDHHMM#ID            F     F  Deg  kts  kts  %   W/m2   inHg    F    ft   s 202510900001CHII2 19 74.8 64.8 230 36.9 43.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900101CHII2 19 74.7 64.8 230 29.9 36.0 999 9999.9 9999.9 99.9 99.9 99.9 202510900201CHII2 19 74.3 64.8 230 35.0 43.0 999 9999.9 9999.9 99.9 99.9 99.9 202510900301CHII2 19 74.8 64.8 230 34.0 44.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900401CHII2 19 74.5 64.6 220 30.9 36.0 999 9999.9 9999.9 99.9 99.9 99.9 202510900501CHII2 19 73.9 64.4 230 23.9 28.0 999 9999.9 9999.9 99.9 99.9 99.9 202510901001CHII2 19 74.8 64.8 230 25.1 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510901101CHII2 19 73.8 64.4 230 21.0 23.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901201CHII2 19 74.3 64.6 220 22.9 26.0 999 9999.9 9999.9 99.9 99.9 99.9 202510901401CHII2 19 74.5 64.6 210 25.1 30.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901501CHII2 19 74.1 64.6 220 22.9 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902001CHII2 19 74.3 64.4 220 25.1 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902101CHII2 19 74.5 64.8 220 28.0 29.9 999 9999.9 9999.9 99.9 99.9 99.9 202510902201CHII2 19 74.5 64.6 220 26.0 29.9 999 9999.9 9999.9 99.9 99.9 99.9 202510902301CHII2 19 74.1 64.6 210 21.0 22.9 999 9999.9 9999.9 99.9 99.9 99.9 202510902401CHII2 19 73.9 64.8 210 22.9 26.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902501CHII2 19 73.8 64.4 210 25.1 28.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903001CHII2 19 73.6 64.8 220 22.9 23.9 999 9999.9 9999.9 99.9 99.9 99.9 202510903101CHII2 19 73.6 64.6 220 22.0 25.1 999 9999.9 9999.9 99.9 99.9 99.9 202510903201CHII2 19 74.1 64.8 220 25.1 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903301CHII2 19 73.9 64.6 210 26.0 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903401CHII2 19 73.4 64.4 220 22.9 28.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903501CHII2 19 72.9 64.0 230 20.0 23.9 999 9999.9 9999.9 99.9 99.9 99.9 202510904001CHII2 19 71.8 64.8 260 29.0 35.0 999 9999.9 9999.9 99.9 99.9 99.9 202510904101CHII2 19 70.5 65.1 250 25.1 34.0 999 9999.9 9999.9 99.9 99.9 99.9 202510904201CHII2 19 68.7 65.3 260 30.9 35.0 999 9999.9 9999.9 99.9 99.9 99.9 202510904301CHII2 19 66.6 64.8 250 27.0 33.0 999 9999.9 9999.9 99.9 99.9 99.9 202510904401CHII2 19 67.8 64.4 250 26.0 29.9 999 9999.9 9999.9 99.9 99.9 99.9 202510904501CHII2 19 67.5 63.3 250 23.9 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905001CHII2 19 66.7 63.1 230 22.0 27.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905101CHII2 19 66.6 63.0 240 21.0 26.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905201CHII2 19 66.6 62.4 230 20.0 22.9 999 9999.9 9999.9 99.9 99.9 99.9 202510905301CHII2 19 66.6 62.1 240 22.9 29.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905401CHII2 19 65.3 61.7 240 16.9 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905501CHII2 19 64.9 61.9 240 19.0 25.1 999 9999.9 9999.9 99.9 99.9 99.9 202510906001CHII2 19 64.2 60.3 250 23.9 30.9 999 9999.9 9999.9 99.9 99.9 99.9 202510906101CHII2 19 63.7 58.6 260 29.0 35.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906201CHII2 19 63.0 58.6 250 27.0 30.9 999 9999.9 9999.9 99.9 99.9 99.9 202510906301CHII2 19 62.2 58.3 250 26.0 30.9 999 9999.9 9999.9 99.9 99.9 99.9 202510906401CHII2 19 61.9 58.1 260 29.9 34.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906501CHII2 19 60.8 57.7 270 27.0 29.9 999 9999.9 9999.9 99.9 99.9 99.9 202510907001CHII2 19 60.3 57.0 270 28.0 30.9 999 9999.9 9999.9 99.9 99.9 99.9
  New Graph (click on parameter):                                      
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