Reality Check · Baltimore, MD
2026 GMC Sierra EV AT4 / Denali in Baltimore, MD
Winter range, charging cost and how far it goes, worked out for Baltimore's weather, grid and prices.
Baltimore's winters are cool rather than cold: on a typical January day (37°F) a Sierra EV AT4 / Denali gets an estimated 367 miles, 11% under its 410-mile rating, about the same as in the coldest week (around January 15, when it averages 37°F). By June it's back to about 431. Charging at home at Maryland's average rate (21.4¢/kWh) costs about $125 a month for 38 miles a day, against $302 for a gas Sierra on the Central Atlantic's gas. And Baltimore's grid (RFC East), 22% 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
409mi
At Baltimore's typical October day, 61°F · 35% highway
Winter lowEstimated
365mi
January, 37°F · lows near 30°F
Home chargingEstimated
$125/mo
10.8¢ a mile at 21.4¢/kWh. Gas Sierra: $302/mo
Baltimore's grid
0.60lb CO₂/kWh
RFC East (EPA eGRID): 22% cleaner than the US, 75% less CO₂ than gas
Baltimore, 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 · 39°F
8% below its 410-mile rating · coldest week 365 mi
375mi
Spring Mar–May · 57°F
About its rating
404mi
Summer Jun–Aug · 79°F
4% above its rating
427mi
Fall Sep–Nov · 61°FNow
About its rating
409mi
A Sierra EV AT4 / Denali's range through a Baltimore yearEstimated
Each month at Baltimore's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Baltimore, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 184 mi out and back, 368 mi one way (January: 330 mi). Dots are DC fast chargers by network.
Fast charging around Baltimore
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 169DC fast chargers within 25 mi
- 0.1 mito the nearest
- Tesla Supercharger311 in reach
- ChargePoint283
- EVgo235
- Electrify America123
- Blink106
Road trips in October, about, by road: Syracuse (325 mi) and New Haven (298 mi) one way on a charge.
Questions Baltimore drivers ask
How far can a Sierra EV AT4 / Denali go in a Baltimore winter?
About 367 miles on a typical January day (37°F) and about the same in the coldest week of the year (around January 15, 37°F on average), estimated from real EV drives at those temperatures. That's 11% 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 Baltimore?
About $125 a month at home for 38 miles a day, at Maryland's average home electricity rate of 21.4¢/kWh: about 10.8¢ a mile. A gas Sierra on the Central Atlantic's average gas ($4.31 a gallon) costs about $302 a month for the same driving.
Can I charge a Sierra EV AT4 / Denali on a regular 120 V outlet in Baltimore?
Not at 38 miles a day: a 120 V outlet adds only about 31 miles in 12 hours on an average day (28 in the coldest week). Plan on 240 V, which fills it from 10% in about 17 hours.
Is it greener to drive electric on Baltimore's grid?
Yes, more than most places. Baltimore's grid (RFC East) is 22% 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 Baltimore
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Md Sci Ctr Baltimore, MD; home electricity, EIA (Maryland, July 2026); gas, EIA weekly (the Central 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.