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Head-to-head Updated May 2026

Cooper Discoverer AT3 LT vs Cooper WeatherMaster Snow — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

Tire A Cooper

Cooper Discoverer AT3 LT

Premium Touring All Season tire

Cooper Discoverer AT3 LT tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
94/100
191 owner reviews
Dry
97
Wet
95
Snow
91
Comfort
94
Noise
92
Treadwear
93
Handling
94
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Cooper

Cooper WeatherMaster Snow

Winter Touring tires

Cooper WeatherMaster Snow tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
81/100
7 owner reviews
Dry
82
Wet
85
Snow
–
Comfort
82
Noise
–
Treadwear
80
Handling
78
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer AT3 LT — better handling, dry and treadwear. It leads or ties in every category we score.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Discoverer AT3 LT leads by 15
A
97
B
82
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 85 82
SimpleTire owners 100 –
America's Tire owners 97 –

Wet

Weight: Important
Score (0–100) Discoverer AT3 LT leads by 10
A
95
B
85
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 85 85
SimpleTire owners 95 –
America's Tire owners 94 –

Snow

Weight: Neutral
Score (0–100)
A
91
B
–
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 90 –
SimpleTire owners 93 –

Comfort

Weight: Neutral
Score (0–100) Discoverer AT3 LT leads by 12
A
94
B
82
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 75 82
SimpleTire owners 95 –
America's Tire owners 94 –

Noise

Weight: Neutral
Score (0–100)
A
92
B
–
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
SimpleTire owners 93 –
America's Tire owners 92 –

Treadwear

Weight: Important
Score (0–100) Discoverer AT3 LT leads by 13
A
93
B
80
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 40 80
SimpleTire owners 100 –
America's Tire owners 93 –

Handling

Weight: Neutral
Score (0–100) Discoverer AT3 LT leads by 16
A
94
B
78
Why this score
SourceDiscoverer AT3 LTWeatherMaster Snow
Tyre Reviews owners 45 78
America's Tire owners 94 –

Scores at a glance

CategoryCooper Discoverer AT3 LTCooper WeatherMaster Snow
Relative Score 94 82
Dry 97 82
Wet 95 85
Snow 91 –
Comfort 94 82
Noise 92 –
Treadwear 93 80
Handling 94 78

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Recomputed
Headline score

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

From owners

Pros, cons & observations

Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.

Tire A Cooper Discoverer AT3 LT

Not enough owner reviews yet to extract themes.

Tire B Cooper WeatherMaster Snow

The Cooper WeatherMaster Snow is widely regarded as a highly capable winter tire that excels in deep snow and challenging mountain conditions. While users consistently praise its impressive traction and ability to navigate steep, snow-covered inclines, some reports of premature or uneven tread wear suggest potential durability concerns for certain users.

Pros

  • Exceptional traction and control in deep and packed snow
  • Strong performance on steep inclines where other vehicles struggle
  • Reliable handling during long-distance winter road trips
  • Effective performance even when used only on the drive axle

Cons

  • Reports of significant uneven tread wear (cupping/scalloping)
  • Potential for vibration issues after a single season of use
  • Inconsistent longevity compared to premium winter tire benchmarks

Observations

  • Users operating on mountainous terrain and deep snow drifts report high confidence in the tire's ability to maintain forward momentum.
  • The tire has been successfully utilized on various vehicle types, including station wagons like the Volvo V70, demonstrating versatility in winter conditions.
Specifications

Specs side by side

Attribute A · Cooper Discoverer AT3 LT B · Cooper WeatherMaster Snow
CategoryPremium Touring All Season tireWinter Touring tires
Vehicle typeSUV and 4x4Passenger Car / Crossover
Sizes available9—
Rim diameters16″ – 18″—
Tread depth16 - 17/32″—
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised Outline White Lettering—
Max pressure50 - 80 psi—
Final verdict

Which one should you actually buy?

Cooper

Cooper

Winner: Cooper Discoverer AT3 LT — better handling, dry and treadwear. It leads or ties in every category we score.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 LT scores 94 vs 78 on handling.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 LT scores 97 vs 82 on dry.

Pick tire A You want the longest tread life

Cooper Discoverer AT3 LT scores 93 vs 80 on treadwear.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 LT scores 94 vs 82 on comfort.

Tire A · Cooper Discoverer AT3 LT
Check price on Amazon
Tire B · Cooper WeatherMaster Snow
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

Community buzz from Reddit and forums is shown for context only — it never changes the score.