Reality Check · Jackson, MS
2026 GMC Sierra EV AT4 / Denali in Jackson, MS
Winter range, charging cost and how far it goes, worked out for Jackson's weather, grid and prices.
Winter barely touches range in Jackson: 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 Mississippi's average rate (14.5¢/kWh) costs about $83 a month for 38 miles a day, about a third of the $265 a gas Sierra costs on the Gulf Coast's gas. On Jackson's grid (SERC Mississippi Valley), about the US average, it makes 69% 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
418mi
At Jackson's typical October day, 67°F · 35% highway
Winter lowEstimated
390mi
January, 47°F · lows near 37°F
Home chargingEstimated
$83/mo
7.2¢ a mile at 14.5¢/kWh. Gas Sierra: $265/mo
Jackson's grid
0.74lb CO₂/kWh
SERC Mississippi Valley (EPA eGRID): about the US average, 69% less CO₂ than gas
Jackson, 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 · 66°F
About its rating
416mi
Summer Jun–Aug · 82°F
About its rating
422mi
Fall Sep–Nov · 67°FNow
About its rating
417mi
A Sierra EV AT4 / Denali's range through a Jackson yearEstimated
Each month at Jackson's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Jackson, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 188 mi out and back, 376 mi one way (January: 352 mi). Dots are DC fast chargers by network.
Fast charging around Jackson
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 20DC fast chargers within 25 mi
- 2.4 mito the nearest
- ChargePoint111 in reach
- Tesla Supercharger69
- EV Connect59
- EVgo45
- Blink31
Road trips in October, about, by road: Birmingham (269 mi) and Little Rock (259 mi) one way on a charge; Nashville (413 mi) with one fast stop.
Questions Jackson drivers ask
How far can a Sierra EV AT4 / Denali go in a Jackson winter?
Jackson's winters are mild: about 391 miles on a typical January day (47°F) and about the same in the coldest week (around January 10, 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 Jackson?
About $83 a month at home for 38 miles a day, at Mississippi's average home electricity rate of 14.5¢/kWh: about 7.2¢ a mile. A gas Sierra on the Gulf Coast's average gas ($3.78 a gallon) costs about $265 a month for the same driving.
Can I charge a Sierra EV AT4 / Denali on a regular 120 V outlet in Jackson?
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 Jackson's grid?
Yes. Jackson's grid (SERC Mississippi Valley) is about the US average, and a Sierra EV AT4 / Denali charged on it makes 69% 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 Jackson
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Jackson Hawkins Fld, MS; home electricity, EIA (Mississippi, July 2026); gas, EIA weekly (the Gulf Coast); 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.