Ex-Barnsley and Huddersfield Town player turned free agent finds new home with SPL club
The 31-year-old has been a free agent since leaving Australian side Melbourne Victory earlier this year. Upon his return to British shores, he spent time training with Barnsley Under-23s to keep up his fitness.
Saints manager Callum Davidson has moved to bolster his squad at a time when they are struggling for form and have been dealing with a spate of injuries to key players.
Butterfield came through the youth ranks at Manchester United before joining Barnsley in 2007. He went on to make 100 appearances for the Tykes.
The Bradford-born midfielder was named Supporters' Player of the Year by the Terriers faithful during the 2014-15 campaign.
Davidson said last week he was eager to add reinforcements and would only recruit players he felt were equipped to go straight into his team and improve it.
St Johnstone – who slipped to the foot of the cinch Premiership after losing at home to Aberdeen at the weekend – travel to leaders Rangers on Wednesday.