Soil temperature in Yonkers, New York
Soil temperature
76°F24.3°C
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 24.3°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 Yonkers, New York is currently 24.3°C, and falling about 23.7°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 24.3°C at 6cm and holding above 12.5°C.
7 of the next 10 days are good mowing days. The other 3 are held back by wet grass or soft ground. The best weekend slot right now is Monday 10am–3pm, on the basis that no rain since Friday, ground firm.
The next recommended window in Yonkers opens at 1pm on Wednesday 2 September, because that is when the dew has burnt off — earlier than that and you are cutting wet grass. Underfoot, the ground reads as soft in places after 40mm rain over the last week.
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 23.8°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — grass wet, rain 4 hours ago.
Tuesday 1 SeptemberConfident
No — grass wet, rain 4 hours ago.
- Poor:Grass wetness
- Grass wetrain 4 hours ago
- Good:Ground firmness
- Ground soft in places40mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.89
- Good:Temperature
- Temperature20°C
- Good:Wind
- Wind light19 km/h
Limiting factor:grass wetness
Wednesday 2 September: Good. 1pm–8pm — grass dry — rain earlier today
Wednesday 2 September · 1pm–8pmConfident
1pm–8pm — grass dry — rain earlier today
- Marginal:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 1.00
- Good:Temperature
- Temperature19°C
- Good:Wind
- Wind light9 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:grass wetness
Thursday 3 September: Good. No — 0.7mm of rain falling.
Thursday 3 SeptemberConfident
No — 0.7mm of rain falling.
- Marginal:Grass wetness
- Grass dryrain earlier today
- Poor:Ground firmness
- Ground soft44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.75
- Marginal:Temperature
- Temperature21°C
- Good:Wind
- Wind light5 km/h
Limiting factor:ground firmness
Friday 4 September: Good. 8am–11am — ground soft — 47mm rain over the last week
Friday 4 September · 8am–11amConfident
8am–11am — ground soft — 47mm rain over the last week
- Good:Grass wetness
- Grass dryrain earlier today
- Poor:Ground firmness
- Ground soft47mm rain over the last week
- Good:Growth
- Growing steadilygrowth potential 0.49
- Poor:Temperature
- Temperature23°C
- Good:Wind
- Wind light5 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:ground firmness
Saturday 5 September: Good. 8am–8pm — ground soft in places — 44mm rain over the last week
Saturday 5 September · 8am–8pmReasonably confident
8am–8pm — ground soft in places — 44mm rain over the last week
- Good:Grass wetness
- Grass dryrain earlier today
- Marginal:Ground firmness
- Ground soft in places44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.90
- Good:Temperature
- Temperature18°C
- Good:Wind
- Wind light13 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:ground firmness
Sunday 6 September: Good. 10am–8pm — no rain since Friday, ground soft in places
Sunday 6 September · 10am–8pmReasonably confident
10am–8pm — no rain since Friday, ground soft in places
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground soft in places44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.98
- Good:Temperature
- Temperature16°C
- Good:Wind
- Wind light18 km/h
- Sociable hours
- Fine by the neighboursstarts when it stops being antisocial
Limiting factor:none
Monday 7 September: Good. 10am–3pm — no rain since Friday, ground firm
Monday 7 September · 10am–3pmReasonably confident
10am–3pm — no rain since Friday, ground firm
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.92
- Marginal:Temperature
- Temperature17°C
- Good:Wind
- Wind light6 km/h
- Sociable hours
- Fine by the neighboursstarts when it stops being antisocial
Limiting factor:none
Tuesday 8 September: Good. 8am–8pm — no rain since Friday, ground firm
Tuesday 8 September · 8am–8pmReasonably confident
8am–8pm — no rain since Friday, ground firm
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm44mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.82
- Marginal:Temperature
- Temperature20°C
- Good:Wind
- Wind light11 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:none
Wednesday 9 September: Not worth it. No — ground frozen.
Wednesday 9 SeptemberLow confidence this far out
No — ground frozen.
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm40mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.94
- Good:Temperature
- Temperature18°C
- Good:Wind
- Wind light14 km/h
Limiting factor:none
Thursday 10 September: Not worth it. No — ground frozen.
Thursday 10 SeptemberLow confidence this far out
No — ground frozen.
- Poor:Grass wetness
- Grass dampraining now
- Good:Ground firmness
- Ground soft in places40mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.87
- Good:Temperature
- Temperature22°C
- Good:Wind
- Wind light12 km/h
Limiting factor:grass wetness
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.