COMMUTER FLT LANDS BELOW RECENTLY CHANGED MINS.

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WE HAD DEPARTED FROM BUF ENRTE TO BGM. THE WX AT BGM; UPON ARR; HAD DROPPED BELOW LNDG MINS PRIOR TO REACHING THE DEST WHILE CONVERSING WITH COMPANY AN OPERATIONAL DECISION WAS MADE TO OVERFLY AND PROCEED TO NEXT DEST (HPN). APPROX 40 NM FROM HPN WE HAD RECEIVED THE WX APPROX: 3 OVCST 220 VARIABLE 2400 RVR. AT A POINT OF 5 NM FROM THE OM THE TWR RPTED THE RVR TO BE 2400 (WHICH WAS THE REQUIREMENT TO EXECUTE THE APCH AS PER THE APCH PLATE). AFTER BEING CLRED FOR THE APCH (ILS 16) WE EXECUTED AND COMPLETED THE APCH TO A LNDG. AT THE COMPLETION OF MY WORKDAY; ANOTHER CAPT AND MYSELF WERE DISCUSSING THE WX IN THE NY AREA. I MENTIONED THE APCH INTO HPN AND A COMMENT WAS MADE IN REF TO AN INCREASE TO THE LNDG MINS IN THE FN NOTAMS. FURTHER INVESTIGATING; I HAD FOUND IT WAS SO. A MISTAKE WAS MADE BY MYSELF FROM NOT RETRIEVING THIS INFO. ALSO; IF A MISTAKE LIKE THIS IS MADE; I FEEL THE CTLR SHOULD MAKE MENTION TO THE PLTS 'BE ADVISED APCH MINS HAVE RECENTLY BEEN INCREASED TO SUCH AND SUCH.' 'APCH BELOW MOST USER MINS.' NOTHING WAS MENTIONED!