Reality Check · Greensboro, NC
2026 GMC Sierra EV AT4 / Denali in Greensboro, NC
Winter range, charging cost and how far it goes, worked out for Greensboro's weather, grid and prices.
Greensboro's winters are cool rather than cold: on a typical January day (40°F) a Sierra EV AT4 / Denali gets an estimated 377 miles, 8% under its 410-mile rating, about the same as in the coldest week (around January 12, when it averages 39°F). By May it's back to about 418. Charging at home at North Carolina's average rate (15.2¢/kWh) costs about $88 a month for 38 miles a day, about a third of the $271 a gas Sierra costs on the Lower Atlantic's gas. And Greensboro's grid (SERC Virginia/Carolina), 23% cleaner than the US average, makes it 75% 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
408mi
At Greensboro's typical October day, 60°F · 35% highway
Winter lowEstimated
376mi
January, 40°F · lows near 30°F
Home chargingEstimated
$88/mo
7.6¢ a mile at 15.2¢/kWh. Gas Sierra: $271/mo
Greensboro's grid
0.59lb CO₂/kWh
SERC Virginia/Carolina (EPA eGRID): 23% cleaner than the US, 75% less CO₂ than gas
Greensboro, 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 · 42°F
7% below its 410-mile rating · coldest week 376 mi
382mi
Spring Mar–May · 59°F
About its rating
407mi
Summer Jun–Aug · 77°F
5% above its rating
429mi
Fall Sep–Nov · 60°FNow
About its rating
408mi
A Sierra EV AT4 / Denali's range through a Greensboro yearEstimated
Each month at Greensboro's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Greensboro, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 184 mi out and back, 367 mi one way (January: 340 mi). Dots are DC fast chargers by network.
Fast charging around Greensboro
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 32DC fast chargers within 25 mi
- 1.0 mito the nearest
- ChargePoint280 in reach
- Tesla Supercharger273
- EVgo250
- EV Connect128
- Electrify America93
Road trips in October, about, by road: Washington (310 mi) and Knoxville (288 mi) one way on a charge.
Questions Greensboro drivers ask
How far can a Sierra EV AT4 / Denali go in a Greensboro winter?
About 377 miles on a typical January day (40°F) and about the same in the coldest week of the year (around January 12, 39°F on average), estimated from real EV drives at those temperatures. That's 8% below its 410-mile rating, mostly from heating the cabin and the battery.
How much does it cost to charge a Sierra EV AT4 / Denali in Greensboro?
About $88 a month at home for 38 miles a day, at North Carolina's average home electricity rate of 15.2¢/kWh: about 7.6¢ 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 Greensboro?
Not at 38 miles a day: a 120 V outlet adds only about 31 miles in 12 hours on an average day (29 in the coldest week). Plan on 240 V, which fills it from 10% in about 17 hours.
Is it greener to drive electric on Greensboro's grid?
Yes, more than most places. Greensboro's grid (SERC Virginia/Carolina) is 23% cleaner than the US average, so a Sierra EV AT4 / Denali charged on it makes 75% 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 Greensboro
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Piedmont Triad International Airport, NC; home electricity, EIA (North Carolina, 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.