Reality Check · Bridgeport, CT
2025 GMC Sierra EV in Bridgeport, CT
Winter range, charging cost and how far it goes, worked out for Bridgeport's weather, grid and prices.
Bridgeport's winters are cool rather than cold: on a typical January day (31°F) a Sierra EV gets an estimated 313 miles, 20% under its 390-mile rating, and about 309 in the coldest week (around January 19, when it averages 31°F). By April it's back to about 375. Charging at home at Connecticut's average rate (24.2¢/kWh) costs about $160 a month for 38 miles a day, against $307 for a gas Sierra on New England's gas. And Bridgeport's grid (NPCC New England), 30% cleaner than the US average, makes it 75% less CO₂ than gas.
Partly estimated. 2 of 5 temperature bands are from 116 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 390-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October rangeEstimated
383mi
At Bridgeport's typical October day, 56°F · 35% highway
Winter lowEstimated
309mi
January, 31°F; Jan 19–25 at 31°F · lows near 24°F
Home chargingEstimated
$160/mo
13.8¢ a mile at 24.2¢/kWh. Gas Sierra: $307/mo
Bridgeport's grid
0.54lb CO₂/kWh
NPCC New England (EPA eGRID): 30% cleaner than the US, 75% less CO₂ than gas
Bridgeport, season by seasonEstimated
A Sierra EV's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 34°F
16% below its 390-mile rating · coldest week 309 mi
326mi
Spring Mar–May · 50°F
4% below its rating
373mi
Summer Jun–Aug · 73°F
7% below its rating
363mi
Fall Sep–Nov · 57°FNow
4% below its rating
375mi
A Sierra EV's range through a Bridgeport yearEstimated
Each month at Bridgeport's 30-year normal temperature, 35% highway. 32 days a year average below freezing.
How far it goes from Bridgeport, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 172 mi out and back, 345 mi one way (January: 282 mi). Dots are DC fast chargers by network.
Fast charging around Bridgeport
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 79DC fast chargers within 25 mi
- 1.1 mito the nearest
- ChargePoint392 in reach
- Tesla Supercharger236
- EVgo187
- Electrify America114
- EV Connect84
Road trips in October, about, by road: Harrisburg (254 mi) and Syracuse (248 mi) one way on a charge.
Questions Bridgeport drivers ask
How far can a Sierra EV go in a Bridgeport winter?
About 313 miles on a typical January day (31°F) and about 309 in the coldest week of the year (around January 19, 31°F on average), estimated from real EV drives at those temperatures. That's 20–21% below its 390-mile rating, mostly from heating the cabin and the battery. Bridgeport averages 32 days a year below freezing.
How much does it cost to charge a Sierra EV in Bridgeport?
About $160 a month at home for 38 miles a day, at Connecticut's average home electricity rate of 24.2¢/kWh: about 13.8¢ a mile. A gas Sierra on New England's average gas ($4.25 a gallon) costs about $307 a month for the same driving.
Can I charge a Sierra EV on a regular 120 V outlet in Bridgeport?
Not at 38 miles a day: a 120 V outlet adds only about 29 miles in 12 hours on an average day (24 in the coldest week). Plan on 240 V, which fills it from 10% in about 10 hours.
Is it greener to drive electric on Bridgeport's grid?
Yes, more than most places. Bridgeport's grid (NPCC New England) is 30% cleaner than the US average, so a Sierra EV 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 Reality Check near Bridgeport
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Bridgeport Sikorsky Mem Airport, CT; home electricity, EIA (Connecticut, July 2026); gas, EIA weekly (New England); 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.