Slate Reality Check · Boise, ID
Slate truck in Boise, ID
Winter range, charging cost and how far it goes, worked out for Boise's weather, grid and prices.
Boise's winters are cool rather than cold: on a typical January day (32°F) a Slate gets an estimated 171 miles, 16% under its 205-mile rating, and about 168 in the coldest week (around December 24, when it averages 31°F). By May it's back to about 203. Charging at home at Idaho's average rate (13.7¢/kWh) costs about $52 a month for 38 miles a day, about a third of the $199 a gas Ford Maverick costs on the Rocky Mountains's gas. And Boise'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
199mi
At Boise's typical October day, 53°F · 35% highway
Winter lowEstimated
168mi
January, 32°F; Dec 24–30 at 31°F · lows near 24°F
Home chargingEstimated
$52/mo
4.5¢ a mile at 13.7¢/kWh. Gas Ford Maverick: $199/mo
Boise's grid
0.63lb CO₂/kWh
WECC Northwest (EPA eGRID): 18% cleaner than the US, 73% less CO₂ than gas
Boise, 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 · 34°F
14% below its 205-mile rating · coldest week 168 mi
175mi
Spring Mar–May · 52°F
3% below its rating
198mi
Summer Jun–Aug · 74°F
About its rating
204mi
Fall Sep–Nov · 53°FNow
4% below its rating
197mi
A Slate's range through a Boise yearEstimated
Each month at Boise's 30-year normal temperature, 35% highway. 33 days a year average below freezing.
How far it goes from Boise, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 90 mi out and back, 179 mi one way (January: 154 mi). Dots are DC fast chargers by network.
Fast charging around Boise
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 16DC fast chargers within 25 mi
- 2.2 mito the nearest
- ChargePoint12 in reach
- Tesla Supercharger7
- EV Connect4
- EVgo4
- Blink3
Questions Boise drivers ask
How far can a Slate go in a Boise winter?
About 171 miles on a typical January day (32°F) and about 168 in the coldest week of the year (around December 24, 31°F on average), estimated from real EV drives at those temperatures. That's 16–18% below its 205-mile rating, mostly from heating the cabin and the battery. Boise averages 33 days a year below freezing.
How much does it cost to charge a Slate in Boise?
About $52 a month at home for 38 miles a day, at Idaho's average home electricity rate of 13.7¢/kWh: about 4.5¢ a mile. A gas Ford Maverick on the Rocky Mountains's average gas ($4.47 a gallon) costs about $199 a month for the same driving.
Can I charge a Slate on a regular 120 V outlet in Boise?
At 38 miles a day, yes, all year: a 120 V outlet adds about 42 miles in 12 hours even in Boise's coldest week, and about 49 on an average day.
Is it greener to drive electric on Boise's grid?
Yes, more than most places. Boise'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 Boise
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Boise Air Terminal, ID; home electricity, EIA (Idaho, July 2026); gas, EIA weekly (the Rocky Mountains); 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.