Moving from Phoenix to Toronto
A climate comparison of two homes: Arizona to Ontario. The dates below come from the nearest official weather station to each place.
Climate Match
Your growing season runs 151 days shorter, 354 days becomes 203 days.
Phoenix, AZ to Toronto, ON
The full comparison
| Measure | From | To | Change |
|---|---|---|---|
| Frost-free season | 354 days | 203 days | 151 days shorter |
| Last spring frost | January 8 | April 13 | 95 days later |
| Coldest month | 53F in December | 25F in January | 28F colder |
| Months below freezing | 0 months | 3 months | 3 more |
| Warmest month | 92F in July | 72F in July | 20F cooler |
Moving from Phoenix to Toronto reshapes the home year. Winters get 28F colder. Summers get 20F cooler. Your growing season is 151 days shorter. 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.
- Garden: a shorter season favors transplants, short-season varieties, and cold frames. Wait for soil to warm before direct sowing.
- Snow and ice: more months below freezing mean roof load, ice dams, and driveway care become regular work. Keep a roof rake and ice melt on hand.
Season by season
Spring starts later
Your last spring frost moves from January 8 to April 13, 95 days later. Delay tender planting and spring openings.
Summers run cooler
The warmest month goes from 92F in July to 72F in July. Cooler peaks mean less cooling stress, but watch humidity and ventilation.
Winters turn milder
Winter coldest month goes from 53F in December to 25F in January; freezing months go from 0 months to 3 months. Budget for more heating, snow removal, and ice-dam prevention.
Tools for both places
Moving from Phoenix to Toronto, answered
What is the biggest climate change from Phoenix to Toronto?
Your growing season runs 151 days shorter, 354 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: Phoenix Deer Valley Muni Ap near Phoenix 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 Phoenix Deer Valley Muni Ap (near Phoenix, AZ) 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.