Lawn Care Guide for Hancock County
Hancock County, Illinois
Data Story
About Lawn Care in Hancock County, Illinois
High Performance in Western Illinois
Hancock County boasts a lawn difficulty score of 73.1, outperforming both the national average and the Illinois state average of 69.8. This Hardiness Zone 6a region offers a generally favorable environment for traditional Midwestern turf varieties.
Moderate Rain and Manageable Heat
With 40.2 inches of annual precipitation and 28 extreme heat days, the climate closely mirrors ideal growing conditions. The 3514 growing degree days provide a steady pace for development without the explosive, unmanageable growth seen further south.
Perfect pH for Healthy Roots
The soil pH in Hancock County is a near-perfect 6.50, falling squarely in the middle of the ideal range for nutrient uptake. While regional drainage data is limited, the 22.1% clay content suggests a stable foundation that benefits from occasional organic matter top-dressing.
Battling Long-Term Dry Spells
The county has struggled with 39 weeks of drought over the past year, and 64.2% of the area is currently in severe drought. To protect your investment, allow your grass to grow taller to shade the soil and reduce moisture evaporation during these extended dry periods.
Seeding for the Season Ahead
Kentucky bluegrass and fine fescues thrive here once the risk of frost passes after April 21. Aim to complete all overseeding and fertilization by the first fall frost on October 22 to give your lawn time to harden off.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
40.2"
Growing Degree Days
3,514.25
Base 50F
Last Spring Frost
04/21
First Fall Frost
10/22
Days Above 95F
28
Hardiness Zone
6a
Seeding Calendar — Zone 6A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Begin mowing when grass reaches 3 inches
- 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
- Overseed warm-season lawns if thinning
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Apply pre-emergent for winter weeds
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
0.5"
inches of water
Monthly Water
1,622
gallons
Estimated Monthly Cost
$12.98
at $0.008/gallon average
Estimates based on 40" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Hancock County
Persistent Drought Conditions
Hancock 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.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
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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