Moving from Montréal to Toronto
A climate comparison of two homes: Quebec to Ontario. The dates below come from the nearest official weather station to each place.
Climate Match
Your growing season runs 53 days longer, 150 days becomes 203 days.
Montréal, QC to Toronto, ON
The full comparison
| Measure | From | To | Change |
|---|---|---|---|
| Frost-free season | 150 days | 203 days | 53 days longer |
| Coldest month | 13F in January | 25F in January | 12F warmer |
| Last spring frost | May 6 | April 13 | 23 days earlier |
| Months below freezing | 4 months | 3 months | 1 fewer |
| Warmest month | 69F in July | 72F in July | 3F hotter |
Moving from Montréal to Toronto reshapes the home year. Winters get 12F warmer. Summers get 3F hotter. Your growing season is 53 days longer. Plan on a new rhythm for the house and garden.
What changes about the house
- Heating: expect a longer or deeper heating season. Service the furnace or boiler before the first cold snap, and budget for higher heating bills.
- Cooling: hotter peaks make air conditioning or shading more important. Check attic insulation and window sealing so the house does not trap heat.
- Garden: a longer frost-free season opens more crop choices and succession sowings. Raised beds warm earlier in spring.
- Snow and ice: fewer freezing months reduce roof and driveway risk, but one surprise storm still happens. Keep basic winter tools for the odd freeze.
Season by season
Spring starts earlier
Your last spring frost moves from May 6 to April 13, 23 days earlier. Start planting and outdoor prep sooner.
Summers run hotter
The warmest month goes from 69F in July to 72F in July. Air conditioning, shading, and cooling-load planning matter more.
Winters turn milder
Winter coldest month goes from 13F in January to 25F in January; freezing months go from 4 months to 3 months. Budget for more heating, snow removal, and ice-dam prevention.
Tools for both places
Moving from Montréal to Toronto, answered
What is the biggest climate change from Montréal to Toronto?
Your growing season runs 53 days longer, 150 days becomes 203 days. That is the largest shift in the 30-year climate record.
How are these numbers computed?
From official 30-year climate normals at the nearest station to each place: Montreal/St-Hubert Airport near Montréal and Toronto near Toronto. They are planning averages, not forecasts; local microclimates can run a week or two off the station record.
Does the comparison work in reverse?
Yes. Open the comparison tool and swap the two places; the deltas reverse direction but the match score stays the same.
Method and sources
Temperatures and frost dates are from the 30-year climate normals at Montreal/St-Hubert Airport (near Montréal, QC) and Toronto (near Toronto, ON). Canadian data is from Environment and Climate Change Canada; United States data is from NOAA NCEI. These are planning averages, not forecasts. See the methodology page for the full calculation.