Sterling dipped in American trade off November 15 highs against the dollar following earlier US data and ahead of the UK Parliamentary vote on Brexit.
As of 04:09 GMT, GBP/USD dipped 0.42% to 1.2801, with a session-low at 1.2781, and a high at 1.2916.
Earlier US data showed producer prices fell 0.2% m/m in December, missing estimates of a 0.1% dip, and compared to November's 0.1% increase.
Core prices, excluding food and fuel, fell 0.1%, missing estimates of a 0.2% increase, and compared to November's 0.3% increase.
The Empire State Manufacturing Index fell to 3.9 in January, missing estimates of 11.6, and compared to December's 10.9.