The goods gap with China widened 12.2% to US$30.2 billion.
Smaller-than-expected deficit came as exports rose 1.3% for the month.
Total exports rose 2.9% to $47.6 billion, the first increase since July 2018.
The U.S. trade gap in goods and services reached US$621 billion last year, its highest total since 2008.
Included demands that China immediately stop providing subsidies to industries listed in a key industrial plan.
Document he signed states Canada is among the few countries in the world with whom the US runs a surplus.
Hopes to work out differences through negotiations to ensure steady growth of bilateral trade and economic ties.
Research shows no clear path for Trump to reduce the US trade deficit with Mexico.
Increase in the trade deficit came as imports rose 2.4% to $49.8 billion, led by an increase in aircraft imports.
Economists had expected another surplus – about $500 million.
Import volumes fall 6.2%, prices edge down 0.1%.
BMO calls it a worrying sign the transition away from energy sector-driven growth might be stalling.
StatsCan trade figures provide Canada’s first glimpse of how the economy weathered the Alberta wildfires.
Exports to the US slipped 6.3% to $30.4 billion.
Deficit with China set a record in 2015, rising 6.6% to $365.7 billion.