Lawn Care Guide for Chugach Census Area
Chugach Census Area, Alaska
Data Story
About Lawn Care in Chugach Census Area, Alaska
The Rain-Drenched Chugach Coast
Chugach Census Area has a lawn difficulty score of 53.8, making it slightly more challenging than the Alaska state average. This score reflects the difficulty of managing lawns in one of the wettest environments in the country. While the difficulty is higher than average, it still ranks as slightly easier than the national median of 50.0.
Triple the State Average Rainfall
With a massive 139.1 inches of annual precipitation, your primary challenge is managing excess water rather than providing it. This is nearly triple the state average of 53.5 inches, which can lead to saturated soil and moss growth. Growth is supported by 498 growing degree days, mostly occurring between May 16 and October 7.
Managing High-Moisture Soils
With specific soil data unavailable, you must prioritize drainage to handle the extreme 139.1 inches of annual rain. Core aeration and the addition of coarse sand can help prevent your lawn from becoming a bog. It is also important to monitor for soil acidity, as heavy rainfall often leaches away essential minerals.
Zero Drought Concerns
Drought is effectively non-existent here, with only 0.6% of the area classified as abnormally dry and zero weeks of actual drought in the last year. Your focus should be on water diversion rather than conservation to keep your grass roots healthy. Ensure your lawn is graded properly to prevent standing water during heavy downpours.
Picking Water-Tolerant Varieties
For the Chugach area, choose grass blends that include Rough Bluegrass, which performs better in very wet conditions than other varieties. The best time to seed is in late May once the frost risk subsides. Be prepared to mow frequently during the summer to prevent the grass from matting under the weight of constant rain.
Lawn Difficulty Score
Climate Snapshot
Annual Precip
139.1"
Growing Degree Days
498.325
Base 50F
Last Spring Frost
05/16
First Fall Frost
10/07
Days Above 95F
0
Hardiness Zone
N/A
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 139" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Chugach Census Area
Excess Moisture & Fungal Disease
High annual rainfall (139 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
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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