Thermostat settings by state

Thermostat settings in Arkansas

By Ismail Farooq · Updated 2026-10-30

12345678HottestColdest
Climate zones in Arkansas: 3A, 4A

How most homes heat: A mix of heat pumps and gas furnaces, with propane in rural areas.

Arkansas has hot, humid summers and winters with regular freezes, especially in the Ozarks around Fayetteville. Both heating and cooling matter, which makes it good territory for heat pumps and dual-fuel systems (a heat pump with a gas or propane furnace as backup). With dual fuel, the compressor lockout decides when the furnace takes over; propane is usually expensive, so a lower lockout often saves money.

Ice storms can cut power for days in rural areas. If your furnace burns propane, keep the thermostat on a sensible setpoint rather than letting it run hard after an outage.

Climate zones in Arkansas

PlaceIECC zone
Little Rock3A
Pine Bluff3A
Fort Smith3A
Fayetteville4A

Zones follow county lines on the 2021 IECC map, and some counties changed zone between code editions. DOE’s Building America climate zone map lists every county.

Starting settings

Heat pump lockouts for Arkansas

If you have a heat pump, these are starting points for the outdoor temperatures that control backup heat. Your installer’s balance point is better if you have it.

ZoneAux heat lockout (electric strips)Compressor lockout (dual fuel)
335–40 °FAround 25–35 °F, by gas vs electricity price
430–35 °FAround 25–35 °F

Rebates

Many utilities give rebates or bill credits for smart thermostats, sometimes in return for joining a peak-day program. Programs change often, so check your electric and gas utility’s website, or search by ZIP code in the ENERGY STAR rebate finder.

Guides for Arkansas homes

More states