Lawn Care Guide for Campbell County
Campbell County, Wyoming
USDA SSURGO / PHZMData Story
About Lawn Care in Campbell County, Wyoming
Above-Average Potential in Campbell County
Campbell County’s lawn difficulty score of 39.8 is higher than the Wyoming average of 32.6, offering a slightly easier path for local gardeners. While still below the national median of 50.0, the conditions in hardiness zone 5a provide a solid foundation for a resilient lawn.
Moderate Rain with Intense Summer Sun
The county receives 15.0 inches of annual precipitation, which is slightly above the state average but still requires supplemental watering. With 33 extreme heat days a year, your mowing height should stay high to shade the soil and protect grass roots from the sun.
Testing for Prairie Soil Success
Specific regional soil metrics are not currently available, so local residents should prioritize a basic DIY soil test. Given the typical prairie landscape, your lawn likely needs nitrogen-rich amendments and aeration to combat the natural compaction found in this region.
Managing Moderate Drought Risks
The county faced 19 weeks of drought over the last year, with the entire area currently categorized as abnormally dry. Focus on early morning irrigation to minimize evaporation and ensure your lawn remains resilient during the hot summer months.
Spring Seeding for Best Results
Perennial Ryegrass and Tall Fescue perform well in zone 5a and can handle the 33 days of heat. With the last spring frost occurring around May 23rd, late May is the ideal time to establish new turf before the July peak.
Lawn Difficulty Score
Top Grass Fit for Campbell County
Cool-season grasses are the general fit here
County soil and zone data are incomplete, so we show a category recommendation rather than a precise cultivar score for Campbell County.
Why we ruled these out
- Scotts Turf Builder Bermudagrass — USDA zone 5a 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
Buffalograss
Bouteloua dactyloides
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
15.0"
Growing Degree Days
2,226.017
Base 50F
Last Spring Frost
05/23
First Fall Frost
09/23
Days Above 95F
33
Hardiness Zone
5a
Seeding Calendar — Zone 5A
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
2.5"
inches of water
Monthly Water
7,744
gallons
Estimated Monthly Cost
$61.95
at $0.008/gallon average
Estimates based on 15" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Campbell County
Drought Stress
With only 15 inches of annual rainfall, lawns in Campbell County face significant drought stress. Consider drought-tolerant grass species and deep, infrequent watering.
Learn more about regional lawn challenges at The Lawn Report.
Lawn Care Advisory: Campbell County
Lawn Verdict
Campbell County sits in USDA hardiness zone 5a, a transitional zone where cool-season grasses dominate but some warm-season varieties can survive. with winter lows reaching around -20.0°F. though only 2,226.017 growing degree days favor cool-season varieties like Kentucky bluegrass and fescue. Low rainfall (15.0 inches) means supplemental irrigation is essential during summer months.
Seasonal Breakdown
Wait until after May 23 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 71.0°F) reduce heat stress — maintain regular mowing and moderate watering. With 32.550000000000004 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 23; this is the best renovation window. Cool winters (January averages 24.1°F) mean slow or dormant growth; keep debris off the lawn.
Watering Guidance
Low annual precipitation (15.0 inches) makes irrigation essential for maintaining green turf through summer. Currently, 100.0% of the county is in abnormally dry according to the US Drought Monitor. Cool summers reduce water demand; overwatering is a bigger risk than drought stress.
Regional Context
Campbell County is close to the Wyoming average temperature, USDA zone 5a 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 Campbell County in?
What is the best grass for Campbell County?
How much rainfall does Campbell County get?
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.
Explore more data for Campbell County