@RodneyS looks like 0.2" was the total FYI -- https://forecast.weather.gov/product.php?site=lwx&issuedby=LWX&product=PNS
...Loudoun County...
Bluemont 1 WSW 1.8 309 PM 1/03 Since 130 PM
Hughesville 1 ESE 0.8 235 PM 1/03 Trained Spotter
Arcola 3 S 0.3 330 PM 1/03 Trained Spotter
Dulles International 0.2 437 PM 1/03 Official NWS Obs
Purcellville 0.2 748 PM 1/03 Co-Op Observer
Ashburn 1 W 0.2 319 PM 1/03 NWS Employee