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06/23/2025, 8:22 am EDT
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U.S. Summer CDD’s Climbing, Forecast Close to 2022 and 2024 Heat

The Climate Impact Company U.S. selected cities CDD forecast for 2025 is updated. The summertime (JUN/JUL/AUG) CDD outlook adjusts hotter. The national average edges upward to 113.9% of the 30-year normal as the JJA-25 forecast edges close to 2022 and 2024 summertime observations which were 3rd and 4th hottest (respectively) on record.
06/17/2025, 3:31 pm EDT
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Incoming Heat Surge for High Demand PJM Sector

Incoming excessive heat event for PJM misses ERCOT. In the PJM-East sector the primary peak is June 23-25. During this time, forecast models agree on near the 100F risk for the DCA/BWI/PHL stretch and NYC/BDL/BOS will be close. Making this heatwave unique is the extreme humidity and therefore heat index. Heat indices routinely flirt with 110F in this type of heat.
06/16/2025, 5:54 am EDT
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NOAA JUN, JUL, and AUG 2025 North America fire outlooks.

NOAA/CPC has updated their monthly fire risk outlook for Canada, the U.S., and Mexico. The outlook continues to indicate a major westward expansion of fire risk in Canada for mid-to-late summer, steadily widening risk in the Northwest U.S. gradually reaching California while diminishing in Mexico and increasing in Texas.
06/13/2025, 9:07 am EDT
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Increasing Heat Generating in U.S. as Calendar Summer Arrives

The U.S. national temperature is suppressed near normal for a few days primarily due to East U.S. rains. However, as the wet belt lifts northward during the medium range, hotter weather emerges, especially in high population areas of the East causing the national temperature surge somewhat warmer than normal.