Victoria could take months to clean up from the storms that will leave some households without power for another three weeks.
More than 250 homes have been left badly damaged or uninhabitable after the wild weather that hit the state two weeks ago.
The State Emergency Service said storm damage in the Dandenongs and across Gippsland has left 88 homes uninhabitable and a further 64 significantly damaged.
The storms also brought floods to Traralgon, where 37 homes are uninhabitable and 62 significantly damaged.
"The actual clean-up could take some months," SES chief Tim Wiebusch told AAP on Monday.
He said it could be another fortnight before the public can access badly-hit areas.
More than 2200 properties are still without power in the Dandenongs and another 80 in Gippsland, Ausnet Services said on Monday, while 1450 properties won't have electricity for another three weeks.
Many families have had to find temporary accommodation because they were unable to heat their homes, as Coldstream recorded a low of minus 2C on Sunday night.
Meanwhile, the Mount Dandenong preschool may have to be totally rebuilt after falling trees destroyed part of the roof.
Mother of three Suzanne Herbert told AAP her youngest boy is struggling to understand why he can't see his kindergarten friends.
"It was pretty much a mess, it was pretty devastating driving past it," she said.
But she said teachers had managed to access the site to rescue the preschool's four chickens and fish tank.
Kalorama parent Nikki Burgess spoke to AAP on Monday as she was navigating roadblocks to drive her two children to their temporary school.
Her children, aged six and 12, usually attend Mt Dandenong Primary but the school grounds have been damaged and it's too dangerous for students to return, with families forced to make other arrangements.
"I think some families are doing it tough, there's a lot of sadness on the mountain," she said.
"A lot of them are not coping, there's a lot of fatigue as well, mingled with a bit of anger and frustration."
But she said her children have managed to make new friends at Gladesville Primary School in Kilsyth, which they began attending on Wednesday.
Meanwhile Yarra Ranges businesses that have just endured the state's latest lockdown are now facing expensive clean-up bills.
Rhonda and Mark Fergus from Gallery B&B in Olinda said on Sunday they are surviving the cold using a generator, and have had to cancel a month of bookings after trees came down on their property.
Mr Fergus said help has taken days to arrive, and many people in the area feel let down.
"A lot of them are very angry, and that's very understandable," he told AAP.
Australian Defence Force personnel are helping to deliver 200 generators, with 57 outstanding requests for generators expected to be filled on Monday.
On Sunday, the Victorian government announced $2500 weekly payments for businesses that lost power in the storms, while households are already eligible for $1680 payments.
Australian Associated Press