Here is the Quick Look data you requested

The Data originates at the National Weather Service, and is made available here by the UAlbany Department of Atmospheric and Environmental Sciences

Decoded Surface Observations


The weather observed at  (KFDK) at 07:45 AM UTC was:
  The skies were clear.
  The weather reported was light snow.
  Temperature: 30F ( -1C)  Dewpoint:  19F ( -7C)  Relative Humidity:  64%
  Winds from the NW (310 degs) at  6 mph.
  Altimeter:30.52 inches of mercury.
  The prevailing visibility was 7 miles.

The weather observed at WASHINGTON DC, VA (KDCA) at 02:52 AM EST was:
  The skies were mostly clear.
  Temperature: 34F (  1C)  Dewpoint:  19F ( -7C)  Relative Humidity:  55%
  Winds from the N  (350 degs) at 12 mph.
  Pressure: 1032.4 millibars.  Altimeter:30.49 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WASHINGTON DC, VA (KIAD) at 02:52 AM EST was:
  The skies were partly cloudy.
  Temperature: 30F ( -1C)  Dewpoint:  18F ( -8C)  Relative Humidity:  59%
  Winds from the N  (350 degs) at 12 mph.
  Pressure: 1032.4 millibars.  Altimeter:30.48 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at LANCASTER, PA (KLNS) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 28F ( -2C)  Dewpoint:  16F ( -9C)  Relative Humidity:  59%
  Winds from the NW (320 degs) at  8 mph.
  Pressure: 1031.7 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at YORK, PA (KTHV) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 27F ( -3C)  Dewpoint:  16F ( -9C)  Relative Humidity:  63%
  Winds from the NW (330 degs) at  7 mph.
  Pressure: 1032.7 millibars.  Altimeter:30.47 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at MARTINSBURG, WV (KMRB) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 28F ( -2C)  Dewpoint:  14F (-10C)  Relative Humidity:  54%
  Winds from the NW (320 degs) at  9 mph.
  Pressure: 1032.9 millibars.  Altimeter:30.48 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at HAGERSTOWN, MD (KHGR) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 27F ( -3C)  Dewpoint:  12F (-11C)  Relative Humidity:  54%
  Winds from the NW (320 degs) at 14 mph.
  Pressure: 1034.0 millibars.  Altimeter:30.48 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at PATUXENT RIVER, MD (KNHK) at 02:52 AM EST was:
  The skies were clear.
  Temperature: 35F (  2C)  Dewpoint:  22F ( -6C)  Relative Humidity:  58%
  Winds from the N  (350 degs) at 14 mph.
  Pressure: 1031.9 millibars.  Altimeter:30.47 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at OCEAN CITY, MD (KOXB) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 34F (  1C)  Dewpoint:  21F ( -6C)  Relative Humidity:  60%
  Winds from the NW (330 degs) at 10 mph.
  Pressure: 1031.3 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WILMINGTON, DE (KILG) at 02:51 AM EST was:
  The skies were clear.
  Temperature: 30F ( -1C)  Dewpoint:  18F ( -8C)  Relative Humidity:  59%
  Winds from the NW (330 degs) at 14 mph.
  Pressure: 1031.6 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.