The Canadian dollar has weakened in nine of the last 10 trading days as economic growth slows. The currency has declined 5.5 percent since July 11 when oil reached a record $147.27 a barrel. Oil traded at $113.64 today. Commodities account for about half of the nation's exports, while the U.S. is Canada's biggest trading partner.
The currency fell 0.4 percent to C$1.0674 per U.S. dollar at 9:45 a.m. in Toronto, from $1.0637 yesterday. It touched as low as C$1.0728 yesterday, the weakest since Aug. 17, 2007. One Canadian dollar buys 93.70 U.S. cents.
The Canadian dollar weakened versus 11 of the 16 most- actively traded currencies today.