Reality Check · Stockton, CA
2025 GMC Sierra EV in Stockton, CA
Winter range, charging cost and how far it goes, worked out for Stockton's weather, grid and prices.
Winter barely touches range in Stockton: at a typical January's 48°F, a Sierra EV gets an estimated 372 miles on a charge, within 5% of its 390-mile rating. Summer is the harder season here: at July's 78°F average (highs near 95°F), air conditioning trims it to about 357 miles. Charging at home at California's average rate (33.6¢/kWh) costs about $214 a month for 38 miles a day, against $436 for a gas Sierra on California's gas. And Stockton's grid (WECC California), 44% cleaner than the US average, makes it 81% 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
376mi
At Stockton's typical October day, 66°F · 35% highway
Winter lowEstimated
371mi
January, 48°F · lows near 38°F
Home chargingEstimated
$214/mo
18.5¢ a mile at 33.6¢/kWh. Gas Sierra: $436/mo
Stockton's grid
0.43lb CO₂/kWh
WECC California (EPA eGRID): 44% cleaner than the US, 81% less CO₂ than gas
Stockton, 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 · 49°F
4% below its 390-mile rating · coldest week 371 mi
374mi
Spring Mar–May · 62°F
About its rating
380mi
Summer Jun–Aug · 76°F
8% below its rating
358mi
Fall Sep–Nov · 65°FNow
4% below its rating
373mi
A Sierra EV's range through a Stockton yearEstimated
Each month at Stockton's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Stockton, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 169 mi out and back, 338 mi one way (January: 335 mi). Dots are DC fast chargers by network.
Fast charging around Stockton
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 78DC fast chargers within 25 mi
- 0.7 mito the nearest
- EVgo377 in reach
- Tesla Supercharger277
- ChargePoint250
- Electrify America161
- EVCS80
Road trips in October, about, by road: Bakersfield (276 mi) and Fresno (146 mi) one way on a charge; Oxnard (358 mi) with one fast stop.
Questions Stockton drivers ask
How far can a Sierra EV go in a Stockton winter?
Stockton's winters are mild: about 372 miles on a typical January day (48°F) and about the same in the coldest week (around December 23, 47°F), estimated from real EV drives at those temperatures. That's within 5% of its 390-mile rating. The harder season here is summer: about 357 miles in July, with the air conditioning on.
How much does it cost to charge a Sierra EV in Stockton?
About $214 a month at home for 38 miles a day, at California's average home electricity rate of 33.6¢/kWh: about 18.5¢ a mile. A gas Sierra on California's average gas ($6.03 a gallon) costs about $436 a month for the same driving.
Can I charge a Sierra EV on a regular 120 V outlet in Stockton?
Not at 38 miles a day: a 120 V outlet adds only about 29 miles in 12 hours on an average day (28 in the coldest week). Plan on 240 V, which fills it from 10% in about 10 hours.
Is it greener to drive electric on Stockton's grid?
Yes, more than most places. Stockton's grid (WECC California) is 44% cleaner than the US average, so a Sierra EV charged on it makes 81% 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 Stockton
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Stockton Metro Airport, CA; home electricity, EIA (California, July 2026); gas, EIA weekly (California); 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.