Across the 31 days, Mr Farron covered over 200 miles and 20,000 feet of ascent.
Well Minds, which is based in Kendal, support young people aged 12 to 25 to help improve their mental wellbeing.
Mr Farron said: “I’m absolutely over the moon that we’ve managed to raise over £7000 for Well Minds.
“I want to say an enormous thank you to everyone who donated – you’ve made a massive difference in supporting young people’s mental health here in the South Lakes.”
The MP was joined on his final run of January by the Chair of Trustees of Well Minds, Ramin Salehi.
After the run, Mr Salehi said: “We are extremely grateful to Tim for his ongoing support for Well Minds and to everyone who sponsored him so generously.