Soil temperature in Colorado Springs, Colorado

Soil temperature

78°F25.7°C

at 6cm — germination depth

Cooling over the next 11 days.

Seeding conditions are open — soil is 25.7°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 Colorado Springs, Colorado is currently 25.7°C, and falling about 22.3°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 25.7°C at 6cm and holding above 12.5°C.

8 of the next 10 days are good mowing days. The best weekend slot right now is Monday 10am–1pm, on the basis that cool — 25°C.

The next recommended window in Colorado Springs opens at 7pm on Tuesday 1 September, and holds while conditions stay put. Underfoot, the ground reads as firm after 4mm rain over the last week.

See the full mowing forecast for Colorado Springs

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 25.7°C cooling to 0.0°C

Tuesday 1 September: Good. 7pm–8pm — heat stress — 26°C

Tuesday 1 September · 7pm–8pmConfident

7pm–8pm — heat stress — 26°C

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
Marginal:Temperature
Heat stress26°C
Good:Wind
Wind light15 km/h
Sociable hours
A bit early or late, but fine

Limiting factor:temperature

Wednesday 2 September: Good. 8am–midday — no rain since Friday, ground firm

Wednesday 2 September · 8am–middayConfident

8am–midday — no rain since Friday, ground firm

Good:Grass wetness
Grass dryno rain since Friday
Good:Ground firmness
Ground firm2mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.83
Poor: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:none

Thursday 3 September: Good. 8am–midday — no rain since Friday, ground firm

Thursday 3 September · 8am–middayConfident

8am–midday — no rain since Friday, ground firm

Good:Grass wetness
Grass dryno rain since Friday
Good:Ground firmness
Ground firm2mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.78
Marginal:Temperature
Temperature14°C
Good:Wind
Wind light1 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Friday 4 September: Good. 8am–11am — no rain since Friday, ground firm

Friday 4 September · 8am–11amConfident

8am–11am — no rain since Friday, ground firm

Good:Grass wetness
Grass dryno rain since Friday
Good:Ground firmness
Ground firm2mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.60
Poor:Temperature
Temperature21°C
Good:Wind
Wind light8 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Saturday 5 September: Good. 8am–midday — no rain in over a week, ground firm

Saturday 5 September · 8am–middayReasonably confident

8am–midday — 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 wellgrowth potential 0.59
Poor:Temperature
Temperature22°C
Good:Wind
Wind light12 km/h
Sociable hours
A bit early or late, but finestarts when it stops being antisocial

Limiting factor:none

Sunday 6 September: Good. 10am–midday — heat stress — 26°C

Sunday 6 September · 10am–middayReasonably confident

10am–midday — heat stress — 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 0.60
Poor:Temperature
Temperature22°C
Good:Wind
Wind light9 km/h
Sociable hours
Fine by the neighboursstarts when it stops being antisocial

Limiting factor:temperature

Monday 7 September: Good. 10am–1pm — cool — 25°C

Monday 7 September · 10am–1pmReasonably confident

10am–1pm — cool — 25°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 0.66
Marginal:Temperature
Temperature21°C
Good:Wind
Wind light3 km/h
Sociable hours
Fine by the neighboursstarts when it stops being antisocial

Limiting factor:temperature

Tuesday 8 September: Good. 8am–midday — no rain in over a week, ground firm

Tuesday 8 September · 8am–middayReasonably confident

8am–midday — 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 wellgrowth potential 0.71
Poor:Temperature
Temperature20°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 in over a week
Good:Ground firmness
Ground firm0mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.63
Marginal:Temperature
Temperature20°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.

Marginal:Grass wetness
Grass dryrain earlier today
Good:Ground firmness
Ground firm0mm rain over the last week
Good:Growth
Growing wellgrowth potential 0.90
Good:Temperature
Temperature18°C
Good:Wind
Wind light18 km/h

Limiting factor:none

Nearby

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