Lawn Care Guide for McCone County
McCone County, Montana
USDA SSURGO / PHZMData Story
About Lawn Care in McCone County, Montana
Average Ease in a Harsh State
McCone County's lawn score of 31.8 is very close to the Montana state average of 33.4. While it beats some neighbors, it remains much tougher than the national median score of 50.0.
The Challenge of Summer Heat
The county experiences 31 extreme heat days, which is much higher than the state average of 22. This intense heat combined with only 13.7 inches of rain makes summer dormancy almost inevitable without irrigation.
Handling High pH Soils
The soil pH of 7.55 is quite alkaline, which may require the addition of elemental sulfur to help grass thrive. A balanced mix of 24.5% clay and 35.4% sand provides a decent foundation if properly aerated.
Drought-Ready Lawn Habits
The county experienced 39 weeks of drought last year, and 100% of the area is currently abnormally dry. Focus on deep-root watering techniques to help your turf survive the 31 annual days of extreme heat.
Maximize the Growing Season
Buffalo grass is a fantastic low-water choice for this 4a zone and its high heat days. With 2400 growing degree days, grass can establish quickly if seeded after the May 17 frost.
Lawn Difficulty Score
Top Grass Fit for McCone County
Strong match
Pennington Smart Seed Sun & Shade
Pennington
Top cultivar score: 74/100
Estimated — county soil data incomplete.
Zone 4a vs Tall Fescue's 3–8 band.
Soil pH 7.54596563897894 vs Tall Fescue's 5.5–6.5 window.
Precipitation 13.677499999999998" + soil AWC vs Tall Fescue's 20–30" need.
Growing-degree-days + frost window vs a beginner-difficulty establishment.
Pennington Smart Seed Sun & Shade is the best value in the cool-season grass seed market. Period. You get a quality fescue/KBG blend with genuine drought tolerance coating at a price point significantly below premium options like BBU or Barenbrug RTF.
In McCone County, USDA zone 4a, soil pH 7.5, Pennington Smart Seed Sun & Shade scores 74/100 — a strong zone match, moderate moisture, and a long enough establishment window.
Why we ruled these out
- Pennington Zenith Zoysia Grass Seed & Mulch — USDA zone 4a is below Pennington Zenith Zoysia Grass Seed & Mulch's effective range (5–10); not recommended for this county.
- Scotts Turf Builder Bermudagrass — USDA zone 4a is below Scotts Turf Builder Bermudagrass's effective range (6–11); not recommended for this county.
See our fit-score methodology for how survivability is determined.
Recommended Grasses
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Buffalograss
Bouteloua dactyloides
Climate Snapshot
Annual Precip
13.7"
Growing Degree Days
2,400.05
Base 50F
Last Spring Frost
05/17
First Fall Frost
09/22
Days Above 95F
31
Hardiness Zone
4a
Seeding Calendar — Zone 4A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Overseed bare spots once frost risk passes
- Start irrigation if rainfall is below 1 inch/week
- Soil test every 2-3 years — adjust lime or sulfur as needed
Summer
- Mow at recommended height weekly
- Water deeply 1-2 times per week (1 inch total)
- Avoid fertilizing cool-season grasses in peak heat
- Scout for grubs and treat if >10 per sq ft
Fall
- Core aerate compacted areas
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Avoid walking on frozen turf
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
2.6"
inches of water
Monthly Water
8,151
gallons
Estimated Monthly Cost
$65.21
at $0.008/gallon average
Estimates based on 14" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in McCone County
Drought Stress
With only 14 inches of annual rainfall, lawns in McCone County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
Persistent Drought Conditions
McCone County experienced drought conditions for 39 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
Learn more about regional lawn challenges at The Lawn Report.
Lawn Care Advisory: McCone County
Lawn Verdict
McCone County is in USDA hardiness zone 4a, one of the coldest zones in the country. with winter lows reaching around -30.0°F. though only 2,400.05 growing degree days favor cool-season varieties like Kentucky bluegrass and fescue. Low rainfall (13.7 inches) means supplemental irrigation is essential during summer months.
Seasonal Breakdown
Wait until after May 17 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 71.7°F) reduce heat stress — maintain regular mowing and moderate watering. With 30.8 days above 90°F annually, warm-season grasses recover faster from summer stress than cool-season types. Aerate and overseed cool-season lawns by early fall, well before September 22; this is the best renovation window. Winters are harsh (January averages 17.4°F); avoid foot traffic on frozen turf and plan snow mold prevention.
Watering Guidance
Low annual precipitation (13.7 inches) makes irrigation essential for maintaining green turf through summer. Currently, 100.0% of the county is in moderate drought according to the US Drought Monitor. Consider reducing irrigation frequency and allowing cool-season lawns to go semi-dormant during peak heat. Cool summers reduce water demand; overwatering is a bigger risk than drought stress.
Regional Context
McCone County is close to the Montana average temperature, the growing season is noticeably longer than the state average, USDA zone 4a helps guide grass selection compared to neighboring counties.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is McCone County in?
What is the best grass for McCone County?
How much rainfall does McCone County get?
What is the soil pH in McCone County?
Data sourced from USDA SSURGO, NOAA Climate Normals (1991-2020), USDA Plant Hardiness Zone Map, and US Drought Monitor. Lawn difficulty scores and grass recommendations are estimates for informational purposes only.
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