Soil temperature in Erie, Pennsylvania
Soil temperature
76°F24.2°C
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 24.2°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 Erie, Pennsylvania is currently 24.2°C, and falling about 23.1°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 24.2°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–8pm, on the basis that no rain since Friday, ground firm.
The next recommended window in Erie opens at 8am on Thursday 3 September, because anything earlier is the hour your neighbours will remember. Underfoot, the ground reads as soft in places after 28mm 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 23.5°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — ground soft in places, 28mm rain over the last week.
Tuesday 1 SeptemberConfident
No — ground soft in places, 28mm rain over the last week.
- Good:Grass wetness
- Grass dryno rain since Monday
- Good:Ground firmness
- Ground soft in places28mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.70
- Good:Temperature
- Cool24°C
- Good:Wind
- Wind light8 km/h
Limiting factor:ground firmness
Wednesday 2 September: Good. No — 10.8mm of rain falling.
Wednesday 2 SeptemberConfident
No — 10.8mm of rain falling.
- Marginal:Grass wetness
- Grass dryno rain since Monday
- Poor:Ground firmness
- Ground soft28mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.66
- Marginal:Temperature
- Temperature22°C
- Good:Wind
- Wind light11 km/h
Limiting factor:ground firmness
Thursday 3 September: Good. 8am–8pm — ground soft — 60mm rain over the last week
Thursday 3 September · 8am–8pmConfident
8am–8pm — ground soft — 60mm rain over the last week
- Good:Grass wetness
- Grass dryrain earlier today
- Poor:Ground firmness
- Ground soft60mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.75
- Marginal:Temperature
- Temperature22°C
- Good:Wind
- Wind light7 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:ground firmness
Friday 4 September: Good. 8am–10am — ground soft — 60mm rain over the last week
Friday 4 September · 8am–10amConfident
8am–10am — ground soft — 60mm rain over the last week
- Poor:Grass wetness
- Grass dryraining now
- Poor:Ground firmness
- Ground soft60mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.98
- Good:Temperature
- Temperature21°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 — 63mm rain over the last week
Saturday 5 September · 8am–8pmReasonably confident
8am–8pm — ground soft in places — 63mm rain over the last week
- Good:Grass wetness
- Grass dryrain earlier today
- Marginal:Ground firmness
- Ground soft in places63mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.96
- Good:Temperature
- Temperature16°C
- Good:Wind
- Wind light9 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 firm
Sunday 6 September · 10am–8pmReasonably confident
10am–8pm — no rain since Friday, ground firm
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm63mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.85
- Good:Temperature
- Temperature12°C
- Good:Wind
- Wind light7 km/h
- Sociable hours
- Fine by the neighboursstarts when it stops being antisocial
Limiting factor:none
Monday 7 September: Good. 10am–8pm — no rain since Friday, ground firm
Monday 7 September · 10am–8pmReasonably confident
10am–8pm — no rain since Friday, ground firm
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm63mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.97
- Good:Temperature
- Temperature14°C
- Good:Wind
- Wind light15 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 firm34mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.97
- Good:Temperature
- Temperature19°C
- Good:Wind
- Wind light5 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 firm34mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.97
- Good:Temperature
- Temperature16°C
- Good:Wind
- Wind light7 km/h
Limiting factor:none
Thursday 10 September: Not worth it. No — ground frozen.
Thursday 10 SeptemberLow confidence this far out
No — ground frozen.
- Marginal:Grass wetness
- Grass drydried off since a shower 0 hours ago
- Marginal:Ground firmness
- Ground soft in places3mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.91
- Good:Temperature
- Temperature22°C
- Good:Wind
- Wind light23 km/h
Limiting factor:grass wetness
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.