Soil temperature in Ithaca, New York
Soil temperature
72°F22.4°C
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 22.4°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 Ithaca, New York is currently 22.4°C, and falling about 21.0°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 22.4°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 Sunday 10am–8pm, on the basis that rain earlier today, ground firm.
The next recommended window in Ithaca opens at 8am on Wednesday 2 September, because anything earlier is the hour your neighbours will remember. Underfoot, the ground reads as firm after 2mm 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 21.8°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — ground firm, 2mm rain over the last week.
Tuesday 1 SeptemberConfident
No — ground firm, 2mm rain over the last week.
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm2mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.86
- Good:Temperature
- Temperature22°C
- Good:Wind
- Wind light1 km/h
Limiting factor:ground firmness
Wednesday 2 September: Good. 8am–11am — rain earlier today, ground firm
Wednesday 2 September · 8am–11amConfident
8am–11am — rain earlier today, ground firm
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm2mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.82
- Marginal:Temperature
- Temperature20°C
- Good:Wind
- Wind light5 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:none
Thursday 3 September: Good. 1pm–8pm — ground soft in places — 3mm rain over the last week
Thursday 3 September · 1pm–8pmConfident
1pm–8pm — ground soft in places — 3mm rain over the last week
- Marginal:Grass wetness
- Grass dryrain earlier today
- Marginal:Ground firmness
- Ground soft in places3mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.82
- Marginal:Temperature
- Temperature21°C
- Good:Wind
- Wind light3 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:ground firmness
Friday 4 September: Good. 8am–8pm — ground soft in places — 35mm rain over the last week
Friday 4 September · 8am–8pmConfident
8am–8pm — ground soft in places — 35mm rain over the last week
- Good:Grass wetness
- Grass dryno rain since Thursday
- Good:Ground firmness
- Ground soft in places35mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.96
- Good:Temperature
- Temperature20°C
- Good:Wind
- Wind light3 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:ground firmness
Saturday 5 September: Good. 6pm–8pm — dried off since a shower 1 hour ago, ground firm
Saturday 5 September · 6pm–8pmReasonably confident
6pm–8pm — dried off since a shower 1 hour ago, ground firm
- Good:Grass wetness
- Grass drydried off since a shower 0 hours ago
- Good:Ground firmness
- Ground firm35mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.76
- Good:Temperature
- Temperature13°C
- Good:Wind
- Wind light9 km/h
- Sociable hours
- A bit early or late, but finestarts once the rain has passed
Limiting factor:none
Sunday 6 September: Good. 10am–8pm — rain earlier today, ground firm
Sunday 6 September · 10am–8pmReasonably confident
10am–8pm — rain earlier today, ground firm
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm36mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.71
- Good:Temperature
- Temperature10°C
- Good:Wind
- Wind light5 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:none
Monday 7 September: Good. 10am–8pm — no rain since Saturday, ground firm
Monday 7 September · 10am–8pmReasonably confident
10am–8pm — no rain since Saturday, ground firm
- Good:Grass wetness
- Grass dryno rain since Saturday
- Good:Ground firmness
- Ground firm36mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.87
- Good:Temperature
- Temperature12°C
- Good:Wind
- Wind light7 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:none
Tuesday 8 September: Good. 8am–8pm — no rain since Saturday, ground firm
Tuesday 8 September · 8am–8pmReasonably confident
8am–8pm — no rain since Saturday, ground firm
- Good:Grass wetness
- Grass dryno rain since Saturday
- Good:Ground firmness
- Ground firm34mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.97
- Good:Temperature
- Temperature18°C
- Good:Wind
- Wind light4 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 Saturday
- Good:Ground firmness
- Ground firm34mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.79
- Good:Temperature
- Temperature11°C
- Good:Wind
- Wind light1 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 drydried off since a shower 0 hours ago
- Good:Ground firmness
- Ground soft in places33mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.96
- Good:Temperature
- Temperature20°C
- Good:Wind
- Wind light10 km/h
Limiting factor:grass wetness
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.