Reality Check · Seattle, WA
2026 Chevrolet Silverado EV Trail Boss in Seattle, WA
Winter range, charging cost and how far it goes, worked out for Seattle's weather, grid and prices.
Winter barely touches range in Seattle: 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 Washington's average rate (14.6¢/kWh) costs about $91 a month for 38 miles a day, about a third of the $369 a gas Silverado costs on Seattle's gas. And Seattle's grid (WECC Northwest), 18% cleaner than the US average, makes it 71% 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
460mi
At Seattle's typical October day, 54°F · 35% highway
Winter lowEstimated
457mi
January, 42°F · lows near 37°F
Home chargingEstimated
$91/mo
7.8¢ a mile at 14.6¢/kWh. Gas Silverado: $369/mo
Seattle's grid
0.63lb CO₂/kWh
WECC Northwest (EPA eGRID): 18% cleaner than the US, 71% less CO₂ than gas
Seattle, 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 457 mi
457mi
Spring Mar–May · 51°F
7% below its rating
460mi
Summer Jun–Aug · 65°F
9% below its rating
447mi
Fall Sep–Nov · 54°FNow
7% below its rating
457mi
A Silverado EV Trail Boss's range through a Seattle yearEstimated
Each month at Seattle's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Seattle, on real roads
In October, from a full charge with 10% in reserve: about 207 mi out and back, 414 mi one way (January: 412 mi). Dots are DC fast chargers by network.
Fast charging around Seattle
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 178DC fast chargers within 25 mi
- 0.0 mito the nearest
- ChargePoint199 in reach
- Tesla Supercharger154
- FLO92
- Electrify America89
- BC Hydro78
Road trips in October, about, by road: Spokane (286 mi) and Portland (181 mi) one way on a charge; Boise (507 mi) with one fast stop.
Questions Seattle drivers ask
How far can a Silverado EV Trail Boss go in a Seattle winter?
Seattle's winters are mild: about 457 miles on a typical January day (42°F) and about the same in the coldest week (around December 19, 41°F), estimated from real EV drives at those temperatures. That's within 7% of its 493-mile rating.
How much does it cost to charge a Silverado EV Trail Boss in Seattle?
About $91 a month at home for 38 miles a day, at Washington's average home electricity rate of 14.6¢/kWh: about 7.8¢ a mile. A gas Silverado on Seattle's average gas ($5.42 a gallon) costs about $369 a month for the same driving.
Can I charge a Silverado EV Trail Boss on a regular 120 V outlet in Seattle?
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 Seattle's grid?
Yes, more than most places. Seattle's grid (WECC Northwest) is 18% cleaner than the US average, so a Silverado EV Trail Boss charged on it makes 71% 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 Seattle
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Seattle Sand Pt Wsfo, WA; home electricity, EIA (Washington, August 2026); gas, EIA weekly (Seattle); 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.