The US degree-day desk: gas-weighted heating and cooling demand against 10-year normals

Hotter again. The latest run adds 18 gas-weighted CDDs to the 15-day total, now 242, 116 above the 10-yr normal.

US 15-day GWCDD, national (Henry Hub) 224→ 242 ▲ +18 vs prior run (+116 vs 10Y normal)

Zone by zone hub chip lights when anomaly ≥ +8

Midwest Chicago Citygate / MISO MIDWEST ▲

SetupThe 15-day cooling degree-day total is 222, 142 above the 80 ten-year normal.

EvolutionUp 51 from the prior run at 171.

15-day CDD, this run vs prior

171→ 222 +142 vs norm

0 NORMAL 80 / ±1σ 14 / NOW 222 (far above normal) 258

Northeast Algonquin / TETCO M3 NORTHEAST ▲

SetupThe 15-day cooling degree-day total is 196, 89 above the 107 ten-year normal.

EvolutionUp 18 from the prior run at 177.

15-day CDD, this run vs prior

177→ 196 +89 vs norm

0 NORMAL 107 / ±1σ 14 / NOW 196 (far above normal) 218

ERCOT ERCOT / HSC / Waha ERCOT ▲

SetupThe 15-day cooling degree-day total is 331, 160 above the 171 ten-year normal.

EvolutionDown 75 from the prior run at 406.

15-day CDD, this run vs prior

406→ 331 +160 vs norm

0 NORMAL 171 / ±1σ 21 / NOW 331 (far above normal) 465

South / West Transco Z4 / SoCal SOUTH_WEST ▲

SetupThe 15-day cooling degree-day total is 351, 191 above the 160 ten-year normal.

EvolutionUp 20 from the prior run at 331.

15-day CDD, this run vs prior

331→ 351 +191 vs norm

0 NORMAL 160 / ±1σ 19 / NOW 351 (far above normal) 399

What moves it. Direction and mechanism only; no price targets

Direction: supportive. Mechanism: HH + regional power supportive (cooling burn above normal) Regions: ercot, midwest, northeast, south_west

Call ledger, graded weekly against EIA prints

No graded calls published yet. The ledger goes live once the first week of runs has accrued.