APRS/CWOP weather report from DW3949 – aprs.fi

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Location:	39°07.30' N 77°12.62' W - locator FM19JC49SE - show map 2.5 km South bearing 198° from Gaithersburg, Montgomery County, Maryland, United States [?] 4.3 km West bearing 276° from Derwood, Montgomery County, Maryland, United States 29.3 km Northwest bearing 329° from Washington, D. C., Washington, D.C., United States 54.8 km West bearing 250° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2026-01-04 13:42:05 UTC (3m28s ago) 2026-01-04 08:42:05 EST local time at Gaithersburg, United States [?]
Last WX report:	2026-01-04 13:38:14 UTC (7m19s ago) 2026-01-04 08:38:14 EST local time at Gaithersburg, United States [?]
Temperature:	-0.6 °C
Dew point:	-8.1 °C
Humidity:	57 %
Pressure:	1019.0 mbar
Wind:	North 5° 0.4 m/s (Gusts 0.9 m/s)
Rain:	0.0 mm during last 1 hour, 0.0 mm during last 24 hours, 0.0 mm since midnight

This page shows weather data collected mostly by privately owned and operated weather stations. Stations with a CW-prefixed, numbered callsign are taking part in the Citizen Weather Observer Program (CWOP). Most other weather stations are amateur radio operators with a weather station. Some information is also converted by individuals from publicly available sources like airport weather reports.