The upcoming flurry of key economic data and Federal Reserve communications will be a major test for crypto markets in December. The FOMC rate decision and CPI data are the primary events, directly influencing the U.S. dollar's strength and overall risk appetite. A dovish Fed or cooler inflation could boost Bitcoin and altcoins by weakening the dollar and encouraging investment in risk assets. Conversely, hawkish signals or hot inflation data may trigger market-wide volatility and pullbacks. Traders should brace for heightened sensitivity around these dates, as traditional macro forces continue to dictate short-term crypto sentiment.