Heating costs this winter (2026-27) vs last winter — the Heating Season Index

Heating a typical US home this winter is projected to cost $932 for the October–March season, +0.7% vs last winter's $925 (index 100.7, last winter = 100). By fuel: natural gas $688 (-8.5% vs $751, 50 Mcf); electricity $910 (+2.7% vs $886, 5,000 kWh); heating oil $2,671 (+36.6% vs $1,955, 500 gal); propane $2,016 (-2.1% vs $2,059, 800 gal).

FuelUsage (season)Last winter 2025-26This winter 2026-27 (projected)Change
Natural gas50 Mcf$751$688-8.5%
Electricity5,000 kWh$886$910+2.7%
Heating oil500 gal$1,955$2,671+36.6%
Propane800 gal$2,059$2,016-2.1%

Forward signals: Henry Hub spot $3.22/MMBtu (October 14, 2026, +13.8% YoY); EIA's STEO path averages $3.38 over this winter vs $4.27 last winter. Lower-48 gas in storage: 3,567 Bcf in the week ending October 9, 2026, +1.3% vs the 5-year average for the week. The official read, CPI year over year (September 2026): utility piped gas +5.0% and electricity +4.4% (the CPI's energy services), and fuel oil +74.2%, a household fuel the CPI counts with energy commodities.

Method: Cost of a winter = Σ over Oct–Mar of (month share of the season's heating load × seasonal usage × that month's residential price). Prices: EIA monthly residential natural gas ($/Mcf) and electricity (¢/kWh) where published; EIA Short-Term Energy Outlook monthly price paths (NGRCUUS, ESRCUUS, D2RCAUS, PRRCAUS — history plus forecast, revised each STEO release) for heating oil, propane and every month not yet published. Composite = fuel costs weighted by main-heating-fuel shares of US homes. State bills scale the national path by the state's own price ratio last winter. Henry Hub path = STEO NGHHUUS; storage band = lower-48 working gas vs the same week of the prior five years. Seasonal usage follows the round-number conventions of the EIA Winter Fuels Outlook for an Oct–Mar season (natural gas ~50 Mcf, heating oil ~500 gal, propane ~800 gal, electric heat ~5,000 kWh of heating load). Monthly usage follows a normal winter's heating-degree-day profile. Fuel shares of US homes are from EIA RECS 2020. All three are assumptions, adjustable on the page. Natural gas and electricity bills for all 50 states and DC are on the page. Updated weekly through the season by the Nowflation engine.