Reality Check · Portland, OR
2026 Chevrolet Silverado EV Trail Boss in Portland, OR
Winter range, charging cost and how far it goes, worked out for Portland's weather, grid and prices.
Winter barely touches range in Portland: at a typical January's 42°F, a Silverado EV Trail Boss gets an estimated 457 miles on a charge, within 7% of its 493-mile rating. Charging at home at Oregon's average rate (15.9¢/kWh) costs about $99 a month for 38 miles a day, about a third of the $331 a gas Silverado costs on the West Coast's gas. And Portland's grid (WECC Northwest), 18% cleaner than the US average, makes it 70% less CO₂ than gas.
Partly estimated. 2 of 5 temperature bands are from 117 real drives of this model; the rest come from 2,178 real drives in EVs at each temperature (and Recurrent's winter study below freezing), applied to its 493-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October range
461mi
At Portland's typical October day, 56°F · 35% highway
Winter lowEstimated
456mi
January, 42°F · lows near 36°F
Home chargingEstimated
$99/mo
8.6¢ a mile at 15.9¢/kWh. Gas Silverado: $331/mo
Portland's grid
0.63lb CO₂/kWh
WECC Northwest (EPA eGRID): 18% cleaner than the US, 70% less CO₂ than gas
Portland, season by seasonEstimated
A Silverado EV Trail Boss's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 43°F
7% below its 493-mile rating · coldest week 456 mi
457mi
Spring Mar–May · 54°F
7% below its rating
460mi
Summer Jun–Aug · 68°F
11% below its rating
440mi
Fall Sep–Nov · 56°FNow
8% below its rating
455mi
A Silverado EV Trail Boss's range through a Portland yearEstimated
Each month at Portland's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Portland, on real roads
In October, from a full charge with 10% in reserve: about 207 mi out and back, 415 mi one way (January: 412 mi). Dots are DC fast chargers by network.
Fast charging around Portland
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 131DC fast chargers within 25 mi
- 0.7 mito the nearest
- ChargePoint216 in reach
- Tesla Supercharger153
- Electrify America93
- EVCS81
- EVgo64
Road trips in October, about, by road: Spokane (360 mi) and Seattle (181 mi) one way on a charge; Boise (429 mi) with one fast stop.
Questions Portland drivers ask
How far can a Silverado EV Trail Boss go in a Portland winter?
Portland's winters are mild: about 457 miles on a typical January day (42°F) and about the same in the coldest week (around December 22, 41°F), estimated from real EV drives at those temperatures. That's within 8% of its 493-mile rating.
How much does it cost to charge a Silverado EV Trail Boss in Portland?
About $99 a month at home for 38 miles a day, at Oregon's average home electricity rate of 15.9¢/kWh: about 8.6¢ a mile. A gas Silverado on the West Coast's average gas ($4.87 a gallon) costs about $331 a month for the same driving.
Can I charge a Silverado EV Trail Boss on a regular 120 V outlet in Portland?
Not at 38 miles a day: a 120 V outlet adds only about 29 miles in 12 hours on an average day (29 in the coldest week). Plan on 240 V, which fills it from 10% in about 12 hours.
Is it greener to drive electric on Portland's grid?
Yes, more than most places. Portland's grid (WECC Northwest) is 18% cleaner than the US average, so a Silverado EV Trail Boss charged on it makes 70% less CO₂ than a gas Silverado.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Silverado EV Trail Boss Reality Check near Portland
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Portland International Airport, OR; home electricity, EIA (Oregon, August 2026); gas, EIA weekly (the West 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 29, 2026.