Aviation Digital Data Service (ADDS)

Output produced by METARs form (1506 UTC 29 May 2017)
found at http://www.aviationweather.gov/adds/metars/
 
METAR text: KNHK 291452Z AUTO 33004KT 10SM OVC009 20/19 A2990 RMK AO2 SLP124 T02000194 53005 $
Conditions at: KNHK (PATUXENT RIVER , MD, US) observed 1452 UTC 29 May 2017
Temperature: 20.0°C (68°F)
Dewpoint: 19.4°C (67°F) [RH = 96%]
Pressure (altimeter): 29.90 inches Hg (1012.6 mb)
[Sea-level pressure: 1012.4 mb]
Winds: from the NNW (330 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 10 or more miles (16+ km)
Ceiling: 900 feet AGL
Clouds: overcast cloud deck at 900 feet AGL
Weather:
SOME DATA ABOVE MAY BE INACCURATE!!!
"$" is an indication the sensor requires maintenance