Lawn Care Guide for Dewey County
Dewey County, Oklahoma
Data Story
About Lawn Care in Dewey County, Oklahoma
Dewey County Matches State Lawn Averages
Dewey County’s difficulty score of 46.1 is identical to the Oklahoma state average. Located in Zone 7a, lawns here face a mix of dry winters and hot summers typical of the western plains.
Arid Conditions Limit Natural Turf Growth
Annual precipitation of 27.7 inches falls below the 30-inch ideal threshold, making supplemental watering necessary. Lawns must also survive 85 extreme heat days, which can quickly dry out poorly maintained turf.
Sandy Loam Provides Excellent Natural Drainage
The soil is 52.2% sand and classified as somewhat excessively drained, which prevents waterlogging but leads to fast drying. A near-perfect pH of 6.76 means your grass can easily access whatever nutrients are available.
Maintaining Greenery During Dry Spells
While no part of Dewey is currently in severe drought, the county has weathered 23 weeks of drought in the past year. Using a rain gauge to ensure your lawn gets exactly one inch of water per week can prevent waste.
Tough Grasses for the Western Front
Bermuda and native Buffalograss are the most resilient options for Dewey's 27.7 inches of rain. Plan your planting after the last frost on April 18 to protect tender new shoots from late-season cold.
Lawn Difficulty Score
Soil Summary
pH
6.8
Texture
Loamy fine sand
Drainage
Somewhat excessively drained
Organic Matter
1.0%
Recommended Grasses
Bermudagrass
Cynodon dactylon
Buffalograss
Bouteloua dactyloides
Blue Grama
Bouteloua gracilis
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
27.7"
Growing Degree Days
4,614.9
Base 50F
Last Spring Frost
04/18
First Fall Frost
10/21
Days Above 95F
85
Hardiness Zone
7a
Seeding Calendar — Zone 7A
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
1.7"
inches of water
Monthly Water
5,397
gallons
Estimated Monthly Cost
$43.17
at $0.008/gallon average
Estimates based on 28" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Dewey County
Persistent Drought Conditions
Dewey County experienced drought conditions for 23 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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