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Climate Impact Company Gas/Power Report
Issued: Tuesday September 15, 2026
Highlight: Glance at U.S. population weight HDD forecasts for NOV-26 to MAR-27.
Fig. 1: The percent normal U.S. gas population weight HDD forecast by Climate Impact Company for the NOV-26 to MAR-27 cold season.
Discussion: The initial U.S. gas population weight HDD forecast for the 2026-27 cold season reveals a mild regime with each month forecast below the 10-year/30-year climatology (Fig. 1). Regionally, all zones are warmer than normal for NOV-26 to MAR-27 except near the 10-year normal for Texas (Fig. 2). Regionally, the North-central/Upper Midwest U.S. and Northeast States are warmest compared to the 30-year and 10-year climatology. The probabilistic monthly HDD forecast indicates the operational forecast could be much warmer rather than much colder (Fig. 3).
Fig. 2: The percent normal gas population weight HDD forecast by Climate Impact Company for the NOV-26 to MAR-27 cold season across U.S. regions.
Fig. 3: The Climate Impact Company probability HDD forecast for each month of the 2026-27 cold season.