Your seasonal context
Understand the place before the date.
The H4B area uses a representative location near 45.460°, -73.630°. In the nearby historical climate grid, July is the warmest month on average (21.7°C), while January is the coolest (-11.3°C). October has the highest mean daily precipitation (3.67 mm).
Monthly mean temperatures are below freezing in January, February, March, December. Outdoor planting during those months needs a separate protected-growing assessment. Cabbage tolerate some cold, but variety, plant age and exposure still matter. A monthly average cannot identify a safe planting day.
Light at your latitude
At 45.460° N, the length of the day changes independently of temperature. Compare the middle of three seasons when planning your garden.
Geometric daylight estimate from latitude and solar declination, rounded to 0.1 hour. This is time above a flat horizon, excluding atmospheric refraction, hills, buildings and cloud cover. It is not the direct-sun exposure of your bed. About solar-position calculations.
| Month | Mean air temperature | Mean precipitation / day |
|---|---|---|
| January | -11.3°C (12°F) | 2.33 mm |
| February | -9.6°C (15°F) | 2.40 mm |
| March | -3.3°C (26°F) | 2.44 mm |
| April | 5.4°C (42°F) | 3.16 mm |
| May | 13.2°C (56°F) | 3.00 mm |
| June | 18.5°C (65°F) | 3.62 mm |
| July | 21.7°C (71°F) | 3.07 mm |
| August | 21.1°C (70°F) | 3.15 mm |
| September | 16.9°C (62°F) | 2.93 mm |
| October | 8.8°C (48°F) | 3.67 mm |
| November | 1.4°C (35°F) | 2.69 mm |
| December | -6.6°C (20°F) | 3.17 mm |
NASA POWER regional grid, 0.5° latitude × 0.625° longitude. Grid center 45.500°, -73.750°. Monthly mean air temperature is neither a nightly low nor soil temperature. Rainfall averages do not set a watering schedule. Open the climate source.
Compare nearby places
Cabbage around H4B
Explore the closest listed postal areas by straight-line distance between their representative coordinates. A nearby garden may still have different soil, shelter or elevation.
| Postal area | Distance | Jan | Jul |
|---|---|---|---|
| Notre-Dame-de-Grâce SouthwestH4B · this area | — | -11.3°C | 21.7°C |
| Côte-Saint-Luc EastQC H4V | 1.6 km | -11.3°C | 21.7°C |
| Montreal WestQC H4X | 1.7 km | -11.3°C | 21.7°C |
| Notre-Dame-de-Grâce NortheastQC H4A | 1.7 km | -11.3°C | 21.7°C |
| HampsteadQC H3X | 2.6 km | -11.3°C | 21.7°C |
| Ville ÉmardQC H4E | 2.6 km | -11.3°C | 21.7°C |
| LaSalle NorthwestQC H8N | 2.6 km | -11.3°C | 21.7°C |
Distances use GeoNames representative postal coordinates, which may be estimated; they are not driving distances. Nearby areas often share one NASA POWER grid cell, so identical climate values are expected. Differences shown here describe the climate grids, not a measured difference between individual gardens.
The growing checklist
Give cabbage a considered start.
Use the spacing on the variety label rather than packing small transplants tightly together. Their eventual heads need substantially more room than the plants do at purchase.
- Choose a variety suited to your available space and compare its days to maturity with local seasonal guidance.
- Decide whether you are sowing seed or setting out a transplant; these are different starting stages.
- Check the variety’s temperature guidance. Cold tolerance does not mean every seedling survives a freeze.
- Inspect soil moisture and drainage in the actual bed. Regional rainfall averages cannot tell you whether roots need water today.
Read University of Minnesota Extension vegetable guidance. Its crop-care principles are useful here; its Minnesota planting dates are not applied to Quebec.
One small next step
Make a date to check your garden.
Choose your own reminder date after checking local advice. This is a personal planning prompt, not a calculated planting recommendation.
An .ics file works with Apple Calendar, Google Calendar and Outlook. Your chosen date stays in your browser until you download it.
What this postal area includes
Notre-Dame-de-Grâce Southwest.
A Canadian forward sortation area is the first three characters of a postal code. It can cover several communities, especially outside cities. The representative coordinates may be estimated. Nearby gardens can differ in elevation, shelter, slope and soil.
