Lawn Care Guide for Lewis County
Lewis County, New York
Data Story
About Lawn Care in Lewis County, New York
Cool Conditions in Lewis County
Lewis County earns a lawn difficulty score of 54.0, which is slightly better than the national median of 50.0 but trails the New York state average of 61.1. In USDA Hardiness Zone 4b, your grass must survive harsh winters and a shorter growing window than most of the state.
High Precipitation and Cool Summers
The county receives a generous 49.3 inches of annual precipitation, which sits at the high end of the ideal range for turf. With only one extreme heat day per year and 1,848 growing degree days, your mowing schedule remains steady without the typical mid-summer burnout.
Managing Acidic Soil
The local soil pH of 5.17 is significantly more acidic than the ideal 6.0 to 7.0 range for grass. Since the soil contains 40.7% sand and lacks detailed drainage data, you should focus on regular lime applications to balance the acidity and improve nutrient uptake.
Stable Moisture Levels
The county spent 14 weeks in drought conditions over the past year, with about 34.5% of the area currently classified as abnormally dry. Because severe drought is rare here, deep weekly watering during dry spells is usually enough to maintain resilience.
Hardy Grasses for the North
In Zone 4b, Kentucky Bluegrass and Fine Fescues are the best choices for surviving the long winter. Aim to seed your lawn after the last frost on May 22 or in the late summer before the first frost arrives around October 1.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
49.3"
Growing Degree Days
1,848.15
Base 50F
Last Spring Frost
05/22
First Fall Frost
10/01
Days Above 95F
1
Hardiness Zone
4b
Seeding Calendar — Zone 4B
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 49" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Lewis County
Acidic Soil
Soil pH of 5.2 is below the ideal range for most grasses (6.0-7.0). Apply agricultural lime to raise pH gradually.
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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