Slate Reality Check · Seattle, WA
Slate truck 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 Slate gets an estimated 192 miles on a charge, within 6% of its 205-mile rating. Charging at home at Washington's average rate (14.7¢/kWh) costs about $54 a month for 38 miles a day, about a third of the $246 a gas Ford Maverick costs on Seattle's gas. And Seattle's grid (WECC Northwest), 18% cleaner than the US average, makes it 73% less CO₂ than gas.
Estimated. Almost no one's driving a Slate yet, so these come from 1,548 real drives in other EVs at each temperature (and Recurrent's winter study below freezing), applied to the Slate's rating. They switch to real Slate drives as owners log them.
October rangeEstimated
200mi
At Seattle's typical October day, 54°F · 35% highway
Winter lowEstimated
191mi
January, 42°F · lows near 37°F
Home chargingEstimated
$54/mo
4.7¢ a mile at 14.7¢/kWh. Gas Ford Maverick: $246/mo
Seattle's grid
0.63lb CO₂/kWh
WECC Northwest (EPA eGRID): 18% cleaner than the US, 73% less CO₂ than gas
Seattle, season by seasonEstimated
A Slate's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 43°F
6% below its 205-mile rating · coldest week 191 mi
192mi
Spring Mar–May · 51°F
3% below its rating
198mi
Summer Jun–Aug · 65°F
About its rating
203mi
Fall Sep–Nov · 54°FNow
About its rating
199mi
A Slate'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 roadsEstimated
In October, from a full charge with 10% in reserve: about 90 mi out and back, 180 mi one way (January: 173 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
- ChargePoint129 in reach
- Tesla Supercharger86
- Electrify America51
- BC Hydro45
- EVgo38
Road trips in October, about, by road: Portland (181 mi) with one fast stop.
Questions Seattle drivers ask
How far can a Slate go in a Seattle winter?
Seattle's winters are mild: about 192 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 205-mile rating.
How much does it cost to charge a Slate in Seattle?
About $54 a month at home for 38 miles a day, at Washington's average home electricity rate of 14.7¢/kWh: about 4.7¢ a mile. A gas Ford Maverick on Seattle's average gas ($5.53 a gallon) costs about $246 a month for the same driving.
Can I charge a Slate on a regular 120 V outlet in Seattle?
At 38 miles a day, yes, all year: a 120 V outlet adds about 47 miles in 12 hours even in Seattle's coldest week, and about 49 on an average day.
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 Slate charged on it makes 73% less CO₂ than a gas Ford Maverick.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Slate Reality Check near Seattle
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Seattle Sand Pt Wsfo, WA; home electricity, EIA (Washington, July 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 22, 2026.