{"entity":{"iso2":null,"iso3":null,"name":"Philadelphia (Greater)","slug":"philadelphia-greater"},"indicator":{"licence":"Derived by Statizoid from the sources named on the page","slug":"cooling-and-heating-degree-days-cities-and-fuas-change-in-heating-degree-days-from-1981-2","source":"Statizoid (derived)","source_url":null,"title":"Cooling and heating degree days - Cities and FUAs \u2014 Change in heating degree days from 1981\u20132010 period to 2020\u201324 period, annual growth rate","unit":"% change on previous year"},"observations":[{"date":"1951-01-01","value":-71.7918},{"date":"1952-01-01","value":30.7688},{"date":"1953-01-01","value":-414.455},{"date":"1954-01-01","value":96.7727},{"date":"1956-01-01","value":-48.284},{"date":"1957-01-01","value":-133.358},{"date":"1959-01-01","value":-87.8581},{"date":"1960-01-01","value":598.296},{"date":"1961-01-01","value":-16.5483},{"date":"1962-01-01","value":33.2445},{"date":"1963-01-01","value":-8.14194},{"date":"1964-01-01","value":-55.7465},{"date":"1965-01-01","value":70.1586},{"date":"1966-01-01","value":-1.81736},{"date":"1967-01-01","value":18.7514},{"date":"1968-01-01","value":-23.5492},{"date":"1969-01-01","value":91.8294},{"date":"1970-01-01","value":-35.0683},{"date":"1971-01-01","value":-59.0782},{"date":"1972-01-01","value":64.538},{"date":"1973-01-01","value":-208.559},{"date":"1974-01-01","value":54.469},{"date":"1975-01-01","value":-50.2883},{"date":"1976-01-01","value":225.408},{"date":"1977-01-01","value":-21.3947},{"date":"1978-01-01","value":147.964},{"date":"1979-01-01","value":-81.9704},{"date":"1980-01-01","value":316.557},{"date":"1981-01-01","value":-7.68102},{"date":"1982-01-01","value":-54.5031},{"date":"1983-01-01","value":-54.4512},{"date":"1984-01-01","value":-1.61316},{"date":"1985-01-01","value":-139.327},{"date":"1986-01-01","value":255.397},{"date":"1987-01-01","value":205.062},{"date":"1988-01-01","value":108.512},{"date":"1989-01-01","value":21.0288},{"date":"1990-01-01","value":-287.647},{"date":"1991-01-01","value":35.0742},{"date":"1992-01-01","value":114.032},{"date":"1993-01-01","value":138.898},{"date":"1994-01-01","value":-31.1629},{"date":"1995-01-01","value":29.3306},{"date":"1996-01-01","value":169.715},{"date":"1997-01-01","value":-88.8135},{"date":"1999-01-01","value":59.0903},{"date":"2000-01-01","value":164.76},{"date":"2001-01-01","value":-224.44},{"date":"2002-01-01","value":1.953},{"date":"2003-01-01","value":260.93},{"date":"2004-01-01","value":-66.6806},{"date":"2005-01-01","value":104.253},{"date":"2006-01-01","value":-343.602},{"date":"2007-01-01","value":99.0637},{"date":"2009-01-01","value":101.942},{"date":"2010-01-01","value":446.294},{"date":"2012-01-01","value":-158.713},{"date":"2013-01-01","value":108.579},{"date":"2014-01-01","value":730.077},{"date":"2015-01-01","value":-113.42},{"date":"2016-01-01","value":-372.566},{"date":"2017-01-01","value":-47.4788},{"date":"2018-01-01","value":101.376},{"date":"2020-01-01","value":-267.835},{"date":"2021-01-01","value":32.9165},{"date":"2022-01-01","value":55.4138},{"date":"2023-01-01","value":-258.243},{"date":"2024-01-01","value":37.7038},{"date":"2025-01-01","value":57.8298}],"summary":{"latest_period":"2025-01-01","latest_value":57.8298,"max":730.077,"mean":19.5928,"min":-414.455,"of":1290,"rank":207,"trend":"volatile"}}