Soil temperature in Traverse City, Michigan

Soil temperature

78°F25.8°C

at 6cm — germination depth

Cooling over the next 11 days.

Seeding conditions are open — soil is 25.8°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.

Soil temperature at 6cm for reliable germination. Sources onthe method page.
SpeciesSoil tempDays
Perennial ryegrass8°C5–10
Red / chewings fescue8–10°C10–14
Tall fescuelikely yours10–12°C10–14
Browntop bentColonial bentgrass10–12°C14–21
Smooth-stalked meadow grassKentucky bluegrasslikely yours12–13°C14–28

Soil temperature at 6cm in Traverse City, Michigan is currently 25.8°C, and falling about 23.6°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 25.8°C at 6cm and holding above 12.5°C.

7 of the next 10 days are good mowing days. The best weekend slot right now is Saturday 8am–9pm, on the basis that rain earlier today, ground firm.

The next recommended window in Traverse City opens at 8am on Wednesday 2 September, because that is first light. Underfoot, the ground reads as firm after 14mm rain over the last week.

See the full mowing forecast for Traverse City

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 25.0°C cooling to 0.0°C

Tuesday 1 September: Not worth it. No — cool, 25°C.

Tuesday 1 SeptemberConfident

No — cool, 25°C.

Good:Grass wetness
Grass dryno rain since Monday
Good:Ground firmness
Ground firm14mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.75
Good:Temperature
Cool24°C
Good:Wind
Wind light2 km/h

Limiting factor:temperature

Wednesday 2 September: Good. 8am–9pm — no rain since Monday, ground firm

Wednesday 2 September · 8am–9pmConfident

8am–9pm — no rain since Monday, ground firm

Good:Grass wetness
Grass dryno rain since Monday
Good:Ground firmness
Ground firm14mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.80
Good:Temperature
Temperature22°C
Good:Wind
Wind light8 km/h
Sociable hours
A bit early or late, but finestarts at first light

Limiting factor:none

Thursday 3 September: Good. 10am–9pm — grass dry — rain earlier today

Thursday 3 September · 10am–9pmConfident

10am–9pm — grass dry — rain earlier today

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm13mm rain over the last week
Good:Growth
Growing wellgrowth potential 1.00
Good:Temperature
Temperature18°C
Good:Wind
Wind light5 km/h
Sociable hours
Fine by the neighboursstarts once the dew has burnt off

Limiting factor:grass wetness

Friday 4 September: Good. 2pm–9pm — temperature — 22°C

Friday 4 September · 2pm–9pmConfident

2pm–9pm — temperature — 22°C

Marginal:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm14mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.98
Good:Temperature
Temperature18°C
Good:Wind
Wind light5 km/h
Sociable hours
Fine by the neighboursstarts once the dew has burnt off

Limiting factor:temperature

Saturday 5 September: Good. 8am–9pm — rain earlier today, ground firm

Saturday 5 September · 8am–9pmReasonably confident

8am–9pm — rain earlier today, ground firm

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm17mm rain over the last week
Good:Growth
Growing wellgrowth potential 1.00
Good:Temperature
Temperature16°C
Good:Wind
Wind light8 km/h
Sociable hours
A bit early or late, but finestarts at first light

Limiting factor:none

Sunday 6 September: Good. 10am–9pm — no rain since Friday, ground firm

Sunday 6 September · 10am–9pmReasonably confident

10am–9pm — no rain since Friday, ground firm

Good:Grass wetness
Grass dryno rain since Friday
Good:Ground firmness
Ground firm17mm rain over the last week
Good:Growth
Growing wellgrowth potential 1.00
Good:Temperature
Temperature15°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–9pm — no rain since Friday, ground firm

Monday 7 September · 10am–9pmReasonably confident

10am–9pm — no rain since Friday, ground firm

Good:Grass wetness
Grass dryno rain since Friday
Good:Ground firmness
Ground firm4mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.99
Good:Temperature
Temperature17°C
Good:Wind
Wind light10 km/h
Sociable hours
Fine by the neighboursstarts when it stops being antisocial

Limiting factor:none

Tuesday 8 September: Good. 6pm–9pm — grass dry — rain earlier today

Tuesday 8 September · 6pm–9pmReasonably confident

6pm–9pm — grass dry — rain earlier today

Poor:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm4mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.80
Good:Temperature
Temperature14°C
Good:Wind
Wind light21 km/h
Sociable hours
A bit early or late, but finestarts once the dew has burnt off

Limiting factor:grass wetness

Wednesday 9 September: Not worth it. No — ground frozen.

Wednesday 9 SeptemberLow confidence this far out

No — ground frozen.

Good:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm6mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.92
Good:Temperature
Temperature15°C
Good:Wind
Wind light16 km/h

Limiting factor:none

Thursday 10 September: Not worth it. No — ground frozen.

Thursday 10 SeptemberLow confidence this far out

No — ground frozen.

Good:Grass wetness
Grass drydried off since a shower 0 hours ago
Good:Ground firmness
Ground firm6mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.88
Good:Temperature
Temperature16°C
Good:Wind
Wind light20 km/h

Limiting factor:none

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