Reality Check · San Antonio, TX
2024 Honda Prologue in San Antonio, TX
Winter range, charging cost and how far it goes, worked out for San Antonio's weather, grid and prices.
Winter barely touches range in San Antonio: at a typical January's 52°F, a Prologue gets an estimated 264 miles on a charge, within 3% of its 273-mile rating. Charging at home at Texas's average rate (15.9¢/kWh) costs about $68 a month for 38 miles a day, about a third of the $252 an average standard SUV costs on Texas's gas. On San Antonio's grid (ERCOT All), about the US average, it makes 76% less CO₂ than gas.
Partly estimated. 1 of 5 temperature bands are from 83 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 273-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October rangeEstimated
271mi
At San Antonio's typical October day, 71°F · 35% highway
Winter lowEstimated
264mi
January, 52°F · lows near 41°F
Home chargingEstimated
$68/mo
5.9¢ a mile at 15.9¢/kWh. Average standard SUV: $252/mo
San Antonio's grid
0.73lb CO₂/kWh
ERCOT All (EPA eGRID): about the US average, 76% less CO₂ than gas
San Antonio, season by seasonEstimated
A Prologue's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 54°F
About its rating · coldest week 264 mi
266mi
Spring Mar–May · 70°F
About its rating
271mi
Summer Jun–Aug · 84°F
About its rating
275mi
Fall Sep–Nov · 71°FNow
About its rating
272mi
A Prologue's range through a San Antonio yearEstimated
Each month at San Antonio's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from San Antonio, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 122 mi out and back, 244 mi one way (January: 238 mi). Dots are DC fast chargers by network.
Fast charging around San Antonio
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 54DC fast chargers within 25 mi
- 2.8 mito the nearest
- Tesla Supercharger94 in reach
- EVgo93
- ChargePoint89
- Shell Recharge41
- EV Connect38
Road trips in October, about, by road: Houston (237 mi) and Austin (92 mi) one way on a charge; McAllen (280 mi) with one fast stop.
Questions San Antonio drivers ask
How far can a Prologue go in a San Antonio winter?
San Antonio's winters are mild: about 264 miles on a typical January day (52°F) and about the same in the coldest week (around January 2, 52°F), estimated from real EV drives at those temperatures. That's within 3% of its 273-mile rating.
How much does it cost to charge a Prologue in San Antonio?
About $68 a month at home for 38 miles a day, at Texas's average home electricity rate of 15.9¢/kWh: about 5.9¢ a mile. An average standard SUV on Texas's average gas ($3.70 a gallon) costs about $252 a month for the same driving.
Can I charge a Prologue on a regular 120 V outlet in San Antonio?
At 38 miles a day, yes, all year: a 120 V outlet adds about 41 miles in 12 hours even in San Antonio's coldest week, and about 42 on an average day.
Is it greener to drive electric on San Antonio's grid?
Yes. San Antonio's grid (ERCOT All) is about the US average, and a Prologue charged on it makes 76% less CO₂ than an average standard SUV.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Prologue Reality Check near San Antonio
Sources: temperatures, 30-year normals (NOAA 1991–2020) at San Antonio International Airport, TX; home electricity, EIA (Texas, July 2026); gas, EIA weekly (Texas); 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.