{"id":253343,"date":"2026-08-11T15:07:33","date_gmt":"2026-08-11T19:07:33","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?post_type=glossary-terms&#038;p=253343"},"modified":"2026-08-18T10:41:06","modified_gmt":"2026-08-18T14:41:06","slug":"cooling-degree-day","status":"publish","type":"glossary-terms","link":"https:\/\/www.interactivebrokers.com\/campus\/glossary-terms\/cooling-degree-day\/","title":{"rendered":"Cooling Degree Day"},"content":{"rendered":"\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ndcdyn.interactivebrokers.com\/mkt\/?src=glossGenAcc&amp;url=%2FUniversal%2FApplication\" target=\"_blank\" rel=\"noreferrer noopener\">Open Account<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A cooling degree day, abbreviated CDD, measures how far a day&#8217;s average temperature rises above a 65\u00b0F baseline, and serves as a proxy for demand for air conditioning. A day averaging 85\u00b0F accumulates 20 cooling degree days. The 65\u00b0F reference reflects the approximate outdoor temperature at which typical buildings need neither heating nor cooling, and because electricity demand responds sharply to summer heat, CDD totals correlate strongly with power sector load and with the revenues of entities exposed to it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/prediction-market\/fair-value-weather-climate-monday-august-3-2026\/\">Fair Value Weather &amp; Climate \u2014 Monday, August 3, 2026<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/ibkr-climate-energy\/energy-expenditure-implications-of-next-day-temperature-forecasts\/\">Energy expenditure implications of next-day temperature forecasts<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/securities\/futures\/forecast-contracts-as-a-tool-to-manage-non-catastrophic-weather-risk\/\">Forecast Contracts as a Tool to Manage Non-Catastrophic Weather Risk<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A cooling degree day, abbreviated CDD, measures how far a day&#8217;s average temperature rises above a 65\u00b0F baseline, and serves as a proxy for demand for air conditioning. A day averaging 85\u00b0F accumulates 20 cooling degree days. The 65\u00b0F reference reflects the approximate outdoor temperature at which typical buildings need neither heating nor cooling, and because electricity demand responds sharply to summer heat, CDD totals correlate strongly with power sector load and with the revenues of entities exposed to it.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"traders-glossary":[13256,13251],"class_list":["post-253343","glossary-terms","type-glossary-terms","status-publish","traders-glossary-trading-terms-c","traders-glossary-trading-alphabet"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Archives Term | IBKR Glossary | IBKR Campus<\/title>\n<meta name=\"description\" content=\"Abbreviated CDD, 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