Moving from Ottawa to Tampa
A climate comparison of two homes: Ontario to Florida. The dates below come from the nearest official weather station to each place.
Climate Match
Your growing season runs 207 days longer, 158 days becomes 365 days.
Ottawa, ON to Tampa, FL
The full comparison
| Measure | From | To | Change |
|---|---|---|---|
| Frost-free season | 158 days | 365 days | 207 days longer |
| Coldest month | 14F in January | 62F in January | 48F warmer |
| Last spring frost | April 30 | January 20 | 100 days earlier |
| Months below freezing | 4 months | 0 months | 4 fewer |
| Warmest month | 70F in July | 84F in August | 14F hotter |
Moving from Ottawa to Tampa reshapes the home year. Winters get 48F warmer. Summers get 14F hotter. Your growing season is 207 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 April 30 to January 20, 100 days earlier. Start planting and outdoor prep sooner.
Summers run hotter
The warmest month goes from 70F in July to 84F in August. Air conditioning, shading, and cooling-load planning matter more.
Winters turn milder
Winter coldest month goes from 14F in January to 62F in January; freezing months go from 4 months to 0 months. Budget for more heating, snow removal, and ice-dam prevention.
Tools for both places
Moving from Ottawa to Tampa, answered
What is the biggest climate change from Ottawa to Tampa?
Your growing season runs 207 days longer, 158 days becomes 365 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: Ottawa Cda near Ottawa and Tampa Intl Ap Gsn 72211 near Tampa. 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 Ottawa Cda (near Ottawa, ON) and Tampa Intl Ap Gsn 72211 (near Tampa, FL). 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.