Soil temperature in Morgantown, West Virginia
Soil temperature
77°F24.9°C
at 6cm — germination depth
Cooling over the next 11 days.
Seeding conditions are open — soil is 24.9°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 Morgantown, West Virginia is currently 24.9°C, and falling about 23.8°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 24.9°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–1pm, on the basis that no rain since Friday, ground firm.
The next recommended window in Morgantown opens at 8am 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 firm after 0mm 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 24.4°C cooling to 0.0°C
Tuesday 1 September: Not worth it. No — cool, 26°C.
Tuesday 1 SeptemberConfident
No — cool, 26°C.
- Good:Grass wetness
- Grass dryno rain in over a week
- Good:Ground firmness
- Ground firm0mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.64
- Marginal:Temperature
- Cool24°C
- Good:Wind
- Wind light7 km/h
Limiting factor:temperature
Wednesday 2 September: Good. 8am–11am — no rain in over a week, ground firm
Wednesday 2 September · 8am–11amConfident
8am–11am — no rain in over a week, ground firm
- Good:Grass wetness
- Grass dryno rain in over a week
- Good:Ground firmness
- Ground firm0mm rain over the last week
- Good:Growth
- Growing steadilygrowth potential 0.42
- Poor:Temperature
- Temperature22°C
- Good:Wind
- Wind light4 km/h
- Sociable hours
- A bit early or late, but finestarts once the dew has burnt off
Limiting factor:none
Thursday 3 September: Good. 8am–10am — growing slowly — growth potential 0.32
Thursday 3 September · 8am–10amConfident
8am–10am — growing slowly — growth potential 0.32
- Good:Grass wetness
- Grass dryno rain in over a week
- Good:Ground firmness
- Ground firm0mm rain over the last week
- Marginal:Growth
- Growing slowlygrowth potential 0.32
- Poor:Temperature
- Temperature23°C
- Good:Wind
- Wind light6 km/h
- Sociable hours
- A bit early or late, but finestarts when it stops being antisocial
Limiting factor:growth
Friday 4 September: Good. 7pm–8pm — grass slightly damp — rain 4 hours ago
Friday 4 September · 7pm–8pmConfident
7pm–8pm — grass slightly damp — rain 4 hours ago
- Poor:Grass wetness
- Grass drydried off since a shower 0 hours ago
- Good:Ground firmness
- Ground firm0mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.80
- Marginal:Temperature
- Temperature20°C
- Good:Wind
- Wind light8 km/h
- Sociable hours
- A bit early or late, but finestarts once the dew has burnt off
Limiting factor:grass wetness
Saturday 5 September: Good. 10am–8pm — rain earlier today, ground firm
Saturday 5 September · 10am–8pmReasonably confident
10am–8pm — rain earlier today, ground firm
- Good:Grass wetness
- Grass dryrain earlier today
- Good:Ground firmness
- Ground firm13mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.98
- Good:Temperature
- Temperature15°C
- Good:Wind
- Wind light4 km/h
- Sociable hours
- Fine by the neighboursstarts once the dew has burnt off
Limiting factor:none
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 firm13mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.97
- Good:Temperature
- Temperature12°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–1pm — no rain since Friday, ground firm
Monday 7 September · 10am–1pmReasonably confident
10am–1pm — no rain since Friday, ground firm
- Good:Grass wetness
- Grass dryno rain since Friday
- Good:Ground firmness
- Ground firm13mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.93
- Marginal:Temperature
- Temperature15°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 firm13mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.91
- Marginal:Temperature
- Temperature18°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.
- Poor:Grass wetness
- Grass wetraining now
- Good:Ground firmness
- Ground firm13mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.96
- Good:Temperature
- Temperature19°C
- Good:Wind
- Wind light0 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 1 hour ago
- Good:Ground firmness
- Ground firm17mm rain over the last week
- Good:Growth
- Growing wellgrowth potential 0.84
- Good:Temperature
- Temperature22°C
- Good:Wind
- Wind light18 km/h
Limiting factor:grass wetness
Nearby
Your own postcode
These are town-centre figures. Yours will differ a little.