Reality Check · Tampa, FL
2026 GMC Sierra EV AT4 / Denali in Tampa, FL
Winter range, charging cost and how far it goes, worked out for Tampa's weather, grid and prices.
Winter barely touches range in Tampa: at a typical January's 62°F, a Sierra EV AT4 / Denali gets an estimated 411 miles on a charge, about its 410-mile rating. Charging at home at Florida's average rate (15.0¢/kWh) costs about $84 a month for 38 miles a day, about a third of the $279 a gas Sierra costs on Florida's gas. On Tampa's grid (FRCC All), about the US average, it makes 68% 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 range
431mi
At Tampa's typical October day, 77°F · 35% highway
Winter lowEstimated
410mi
January, 62°F · lows near 52°F
Home chargingEstimated
$84/mo
7.3¢ a mile at 15.0¢/kWh. Gas Sierra: $279/mo
Tampa's grid
0.78lb CO₂/kWh
FRCC All (EPA eGRID): about the US average, 68% less CO₂ than gas
Tampa, 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 · 64°F
About its rating · coldest week 410 mi
413mi
Spring Mar–May · 74°F
4% above its rating
424mi
Summer Jun–Aug · 84°F
About its rating
418mi
Fall Sep–Nov · 77°FNow
3% above its rating
424mi
A Sierra EV AT4 / Denali's range through a Tampa yearEstimated
Each month at Tampa's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Tampa, on real roads
In October, from a full charge with 10% in reserve: about 194 mi out and back, 388 mi one way (January: 369 mi). Dots are DC fast chargers by network.
Fast charging around Tampa
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 103DC fast chargers within 25 mi
- 1.5 mito the nearest
- Tesla Supercharger221 in reach
- ChargePoint149
- EVgo87
- Electrify America61
- EV Connect57
Road trips in October, about, by road: Miami (258 mi) and Jacksonville (214 mi) one way on a charge; Charleston (459 mi) with one fast stop.
Questions Tampa drivers ask
How far can a Sierra EV AT4 / Denali go in a Tampa winter?
Tampa's winters are mild: about 411 miles on a typical January day (62°F) and about the same in the coldest week (around January 12, 62°F), estimated from real EV drives at those temperatures. That's about its 410-mile rating.
How much does it cost to charge a Sierra EV AT4 / Denali in Tampa?
About $84 a month at home for 38 miles a day, at Florida's average home electricity rate of 15.0¢/kWh: about 7.3¢ a mile. A gas Sierra on Florida's average gas ($3.98 a gallon) costs about $279 a month for the same driving.
Can I charge a Sierra EV AT4 / Denali on a regular 120 V outlet in Tampa?
Not at 38 miles a day: a 120 V outlet adds only about 33 miles in 12 hours on an average day (31 in the coldest week). Plan on 240 V, which fills it from 10% in about 17 hours.
Is it greener to drive electric on Tampa's grid?
Yes. Tampa's grid (FRCC All) is about the US average, and a Sierra EV AT4 / Denali charged on it makes 68% 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 Tampa
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Tampa International Airport, FL; home electricity, EIA (Florida, July 2026); gas, EIA weekly (Florida); 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.