Soil temperature in Moncton, New Brunswick
Soil temperature
17.4°C63°F
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 17.4°C at 6cm and holding above 12.5°C.
Most cool-season lawns in the northern US and Canada are bluegrass, tall fescue, or a mix of the two. We assume that, and use12.5°C as the seeding threshold.
I know what grass I have
The differences are small. Ryegrass is the quickest off the mark; bluegrass is the slowest and wants the warmest soil. Everything else sits between.
| Species | Soil temp | Days |
|---|---|---|
| Perennial ryegrass | 8°C | 5–10 |
| Red / chewings fescue | 8–10°C | 10–14 |
| Tall fescuelikely yours | 10–12°C | 10–14 |
| Browntop bentColonial bentgrass | 10–12°C | 14–21 |
| Smooth-stalked meadow grassKentucky bluegrasslikely yours | 12–13°C | 14–28 |
Soil temperature at 6cm in Moncton, New Brunswick is currently 17.4°C, and falling about 16.7°C over the next 11 days. That depth matters because it is where grass seed sits and where roots start working, and it lags air temperature by days — which is why a warm afternoon here tells you very little on its own.
Lawns in this area are typically Kentucky bluegrass with tall fescue, the usual mix for cool-season lawns at this latitude. That blend needs the soil to hold above 12.5°C before seed germinates reliably. Seeding conditions are open — soil is 17.4°C at 6cm and holding above 12.5°C.
4 of the next 10 days look workable. The other 6 are held back by wet grass or soft ground. As for the weekend: nothing doing. 0.4mm of rain falling. And nothing else in the next 10 days either.
Nothing in the current forecast for Moncton opens a sensible window. The ground reads as saturated after 107mm rain over the last week, and that is usually what decides it at this time of year.
The next 10 days
Column height is how mowable the day is; the lighter band is the best stretch within it. The line is soil temperature at 6cm. It crosses the seeding threshold inside this forecast.
12.5°C — seeding
Soil at 6cm 16.8°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — ground saturated, 107mm rain over the last week.
Tuesday 1 SeptemberConfident
No — ground saturated, 107mm rain over the last week.
- Good:Grass wetness
- Grass dryno rain since Sunday
- Poor:Ground firmness
- Ground saturated107mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.79
- Good:Temperature
- Temperature15°C
- Good:Wind
- Wind light9 km/h
Limiting factor:ground firmness
Wednesday 2 September: Good. No — ground saturated, 107mm rain over the last week.
Wednesday 2 SeptemberConfident
No — ground saturated, 107mm rain over the last week.
- Good:Grass wetness
- Grass dryno rain since Sunday
- Poor:Ground firmness
- Ground saturated107mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.67
- Good:Temperature
- Temperature11°C
- Good:Wind
- Wind light2 km/h
Limiting factor:ground firmness
Thursday 3 September: Good. No — 0.1mm of rain falling.
Thursday 3 SeptemberConfident
No — 0.1mm of rain falling.
- Good:Grass wetness
- Grass dryno rain since Sunday
- Poor:Ground firmness
- Ground soft107mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.75
- Good:Temperature
- Temperature14°C
- Good:Wind
- Wind light6 km/h
Limiting factor:ground firmness
Friday 4 September: Not worth it. No — 0.1mm of rain falling.
Friday 4 SeptemberConfident
No — 0.1mm of rain falling.
- Poor:Grass wetness
- Grass wetraining now
- Poor:Ground firmness
- Ground saturated108mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.84
- Good:Temperature
- Temperature16°C
- Good:Wind
- Wind light16 km/h
Limiting factor:grass wetness
Saturday 5 September: Not worth it. No — 0.4mm of rain falling.
Saturday 5 SeptemberReasonably confident
No — 0.4mm of rain falling.
- Poor:Grass wetness
- Grass wetraining now
- Poor:Ground firmness
- Ground saturated40mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.64
- Good:Temperature
- Temperature16°C
- Good:Wind
- Wind light9 km/h
Limiting factor:grass wetness
Sunday 6 September: Not worth it. No — 1.5mm of rain falling.
Sunday 6 SeptemberReasonably confident
No — 1.5mm of rain falling.
- Poor:Grass wetness
- Grass wetraining now
- Poor:Ground firmness
- Ground saturated15mm rain over the last week
- Good:Growth
- Growing steadilygrowth potential 0.49
- Good:Temperature
- Temperature13°C
- Good:Wind
- Wind light22 km/h
Limiting factor:grass wetness
Monday 7 September: Good. No — ground waterlogged.
Monday 7 SeptemberReasonably confident
No — ground waterlogged.
- Marginal:Grass wetness
- Grass dryrain earlier today
- Poor:Ground firmness
- Ground saturated26mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.64
- Good:Temperature
- Temperature13°C
- Good:Wind
- Wind light14 km/h
Limiting factor:ground firmness
Tuesday 8 September: Good. No — 0.5mm of rain falling.
Tuesday 8 SeptemberReasonably confident
No — 0.5mm of rain falling.
- Marginal:Grass wetness
- Grass dryno rain since Monday
- Poor:Ground firmness
- Ground saturated27mm rain over the last week
- Good:Growth
- Growing steadilygrowth potential 0.35
- Good:Temperature
- Temperature11°C
- Good:Wind
- Wind light8 km/h
Limiting factor:ground firmness
Wednesday 9 September: Not worth it. No — ground frozen.
Wednesday 9 SeptemberLow confidence this far out
No — ground frozen.
- Marginal:Grass wetness
- Grass dryrain earlier today
- Marginal:Ground firmness
- Ground soft in places29mm rain over the last week
- Poor:Growth
- Barely growinggrowth potential 0.18
- Good:Temperature
- Temperature11°C
- Good:Wind
- Wind light10 km/h
Limiting factor:grass wetness
Thursday 10 September: Not worth it. No — ground frozen.
Thursday 10 SeptemberLow confidence this far out
No — ground frozen.
- Poor:Grass wetness
- Grass dryno rain since Tuesday
- Marginal:Ground firmness
- Ground soft29mm rain over the last week
- Poor:Growth
- Barely growinggrowth potential 0.14
- Good:Temperature
- Temperature10°C
- Good:Wind
- Wind light6 km/h
Limiting factor:growth
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.