Ontario

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
State
Ontario
Hardiness zones
7a
Last spring frost
April 30
First fall frost
October 16
Annual rain
31 in
Lawn zone
cool-season
Source
Environment and Climate Change Canada — Canadian Climate Normals 1981-2010, station TORONTO LESTER B. PEARSON INT'L A · Toronto

The year in Ontario, from the calendar

  1. Jan—
  2. Feb—
  3. MarFeed hydrangeas · Prune roses · Fertilize the lawn · Mow · Water
  4. AprPlant hydrangeas · Plant roses · Mow · Water
  5. MayFeed hydrangeas · Plant hydrangeas · Feed roses · Plant roses · Mow
  6. JunPrune bigleaf hydrangeas · Mow · Water
  7. JulFeed hydrangeas · Prune bigleaf hydrangeas · Mow · Water
  8. AugPlant hydrangeas · Feed roses · Mow · Plant trees · Water
  9. SepPlant hydrangeas · Seed the lawn · Aerate · Fertilize the lawn · Mow
  10. OctSeed the lawn · Aerate · Leaves · Mow · Overseed
  11. NovAerate · Fertilize the lawn · Leaves · Mow · Water
  12. Dec—

From the state frost facts and extension calendars: Clemson HGIC factsheet — Hydrangea · Clemson Cooperative Extension, HGIC 1219 — Tall Fescue Maintenance Calendar · UC IPM Pest Notes: Roses: Cultural Practices and Weed Control (UC ANR Publication 7465) · Environment and Climate Change Canada — Canadian Climate Normals 1981-2010, station TORONTO LESTER B. PEARSON INT'L A (climate ID 6158733), read from the official API on 2026-08-22 — https://api.weather.gc.ca/collections/climate-normals/items?STATION_NAME=TORONTO%20LESTER%20B.%20PEARSON%20INT%27L%20A.

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This section is set up and waiting for its first pieces. In the meantime:

The almanac, state by state. Every date on this site comes from a state’s own frost facts and its extension service’s calendar — and says where it comes from.

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