{"title":"Denver: Ice days (max at or below 0 C), days by year","description":"Days by year for Ice days (max at or below 0 C) in Denver.","dataAsOf":"2026-10-17T00:00:00Z","lastRevised":"2026-10-18","source":"Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products.","licence":"US Government open data (NOAA NCEI)","page":"https://worldextremeweathermonitor.com/cities/denver/ice-days/","columns":[{"name":"threshold","description":"Threshold id, for example tmax_ge_40c."},{"name":"year","description":"Calendar year."},{"name":"days","description":"Days in the year at or beyond the threshold."},{"name":"first","description":"First qualifying date of the year."},{"name":"last","description":"Last qualifying date of the year."},{"name":"longest_streak","description":"Longest run of consecutive qualifying days inside the year."}],"rows":[{"threshold":"tmax_le_0c","year":1996,"days":27,"first":"1996-01-01","last":"1996-12-19","longest_streak":5},{"threshold":"tmax_le_0c","year":1997,"days":38,"first":"1997-01-05","last":"1997-12-26","longest_streak":7},{"threshold":"tmax_le_0c","year":1998,"days":17,"first":"1998-01-09","last":"1998-12-24","longest_streak":6},{"threshold":"tmax_le_0c","year":1999,"days":12,"first":"1999-01-02","last":"1999-12-21","longest_streak":2},{"threshold":"tmax_le_0c","year":2000,"days":18,"first":"2000-01-03","last":"2000-12-25","longest_streak":5},{"threshold":"tmax_le_0c","year":2001,"days":20,"first":"2001-01-16","last":"2001-12-30","longest_streak":4},{"threshold":"tmax_le_0c","year":2002,"days":29,"first":"2002-01-01","last":"2002-12-24","longest_streak":4},{"threshold":"tmax_le_0c","year":2003,"days":18,"first":"2003-01-10","last":"2003-12-11","longest_streak":5},{"threshold":"tmax_le_0c","year":2004,"days":17,"first":"2004-01-03","last":"2004-12-23","longest_streak":4},{"threshold":"tmax_le_0c","year":2005,"days":16,"first":"2005-01-04","last":"2005-12-18","longest_streak":3},{"threshold":"tmax_le_0c","year":2006,"days":20,"first":"2006-02-10","last":"2006-12-31","longest_streak":4},{"threshold":"tmax_le_0c","year":2007,"days":41,"first":"2007-01-01","last":"2007-12-31","longest_streak":5},{"threshold":"tmax_le_0c","year":2008,"days":21,"first":"2008-01-01","last":"2008-12-23","longest_streak":4},{"threshold":"tmax_le_0c","year":2009,"days":26,"first":"2009-01-04","last":"2009-12-30","longest_streak":8},{"threshold":"tmax_le_0c","year":2010,"days":13,"first":"2010-01-07","last":"2010-12-31","longest_streak":4},{"threshold":"tmax_le_0c","year":2011,"days":23,"first":"2011-01-01","last":"2011-12-22","longest_streak":5},{"threshold":"tmax_le_0c","year":2012,"days":19,"first":"2012-01-17","last":"2012-12-31","longest_streak":5},{"threshold":"tmax_le_0c","year":2014,"days":24,"first":"2014-01-05","last":"2014-12-31","longest_streak":7},{"threshold":"tmax_le_0c","year":2015,"days":29,"first":"2015-01-01","last":"2015-12-31","longest_streak":7},{"threshold":"tmax_le_0c","year":2016,"days":14,"first":"2016-01-08","last":"2016-12-18","longest_streak":3},{"threshold":"tmax_le_0c","year":2017,"days":16,"first":"2017-01-03","last":"2017-12-31","longest_streak":5},{"threshold":"tmax_le_0c","year":2018,"days":16,"first":"2018-01-01","last":"2018-12-31","longest_streak":4},{"threshold":"tmax_le_0c","year":2019,"days":35,"first":"2019-01-01","last":"2019-12-30","longest_streak":4},{"threshold":"tmax_le_0c","year":2020,"days":24,"first":"2020-01-10","last":"2020-12-28","longest_streak":5},{"threshold":"tmax_le_0c","year":2021,"days":14,"first":"2021-01-09","last":"2021-03-14","longest_streak":5},{"threshold":"tmax_le_0c","year":2022,"days":27,"first":"2022-01-01","last":"2022-12-23","longest_streak":4},{"threshold":"tmax_le_0c","year":2023,"days":25,"first":"2023-01-02","last":"2023-12-25","longest_streak":6},{"threshold":"tmax_le_0c","year":2024,"days":11,"first":"2024-01-08","last":"2024-11-06","longest_streak":3},{"threshold":"tmax_le_0c","year":2025,"days":18,"first":"2025-01-04","last":"2025-11-30","longest_streak":4},{"threshold":"tmax_le_0c","year":2026,"days":5,"first":"2026-01-09","last":"2026-02-20","longest_streak":3}]}