Reality Check · Augusta, GA
2026 GMC Sierra EV AT4 / Denali in Augusta, GA
Winter range, charging cost and how far it goes, worked out for Augusta's weather, grid and prices.
Winter barely touches range in Augusta: at a typical January's 47°F, a Sierra EV AT4 / Denali gets an estimated 391 miles on a charge, within 5% of its 410-mile rating. Charging at home at Georgia's average rate (16.3¢/kWh) costs about $93 a month for 38 miles a day, against $271 for a gas Sierra on the Lower Atlantic's gas. Augusta's grid (SERC South) is 10% dirtier than the US average, but charging on it still makes 65% less CO₂ than gas.
Partly estimated. 2 of 5 temperature bands are from 117 real drives of this model; the rest come from 1,548 real drives in EVs at each temperature (and Recurrent's winter study below freezing), applied to its 410-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October rangeEstimated
416mi
At Augusta's typical October day, 66°F · 35% highway
Winter lowEstimated
390mi
January, 47°F · lows near 35°F
Home chargingEstimated
$93/mo
8.0¢ a mile at 16.3¢/kWh. Gas Sierra: $271/mo
Augusta's grid
0.84lb CO₂/kWh
SERC South (EPA eGRID): 10% dirtier than the US, 65% less CO₂ than gas
Augusta, season by seasonEstimated
A Sierra EV AT4 / Denali's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 49°F
4% below its 410-mile rating · coldest week 390 mi
393mi
Spring Mar–May · 65°F
About its rating
415mi
Summer Jun–Aug · 81°F
3% above its rating
422mi
Fall Sep–Nov · 66°FNow
About its rating
416mi
A Sierra EV AT4 / Denali's range through a Augusta yearEstimated
Each month at Augusta's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Augusta, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 187 mi out and back, 375 mi one way (January: 352 mi). Dots are DC fast chargers by network.
Fast charging around Augusta
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 16DC fast chargers within 25 mi
- 8.5 mito the nearest
- ChargePoint381 in reach
- Tesla Supercharger254
- EVgo179
- EV Connect136
- Electrify America76
Road trips in October, about, by road: Raleigh (324 mi) and Durham (319 mi) one way on a charge.
Questions Augusta drivers ask
How far can a Sierra EV AT4 / Denali go in a Augusta winter?
Augusta's winters are mild: about 391 miles on a typical January day (47°F) and about the same in the coldest week (around January 9, 47°F), estimated from real EV drives at those temperatures. That's within 5% of its 410-mile rating.
How much does it cost to charge a Sierra EV AT4 / Denali in Augusta?
About $93 a month at home for 38 miles a day, at Georgia's average home electricity rate of 16.3¢/kWh: about 8.0¢ a mile. A gas Sierra on the Lower Atlantic's average gas ($3.86 a gallon) costs about $271 a month for the same driving.
Can I charge a Sierra EV AT4 / Denali on a regular 120 V outlet in Augusta?
Not at 38 miles a day: a 120 V outlet adds only about 32 miles in 12 hours on an average day (30 in the coldest week). Plan on 240 V, which fills it from 10% in about 17 hours.
Is it greener to drive electric on Augusta's grid?
Yes. Augusta's grid (SERC South) is 10% dirtier than the US average, but a Sierra EV AT4 / Denali charged on it still makes 65% less CO₂ than a gas Sierra.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Sierra EV AT4 / Denali Reality Check near Augusta
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Augusta Bush Fld Airport, GA; home electricity, EIA (Georgia, July 2026); gas, EIA weekly (the Lower Atlantic); grid CO₂, EPA eGRID 2023; cold-weather range, PlugLog's real drives and Recurrent's winter study (Nov 2025); chargers, Open Charge Map and PlugLog. Updated Oct 22, 2026.