{"id":6298,"date":"2026-06-01T20:08:47","date_gmt":"2026-06-01T20:08:47","guid":{"rendered":"https:\/\/timjoslin.org\/?p=6298"},"modified":"2026-06-01T20:11:31","modified_gmt":"2026-06-01T20:11:31","slug":"hotter-and-hotter-uk-springs-in-the-cet","status":"publish","type":"post","link":"https:\/\/timjoslin.org\/index.php\/2026\/06\/01\/hotter-and-hotter-uk-springs-in-the-cet\/","title":{"rendered":"Hotter and Hotter UK Springs in the CET"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>The late May 2026 heatwave has lifted the mean CET  for Spring 2026 above the previous highest &#8211; 2025! &#8211; which itself exceeded the record set the previous year!<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">My post last week, <em><a href=\"https:\/\/timjoslin.org\/index.php\/2026\/05\/26\/maybe-may-be-too-darn-hot\/\" data-type=\"link\" data-id=\"https:\/\/timjoslin.org\/index.php\/2026\/05\/26\/maybe-may-be-too-darn-hot\/\">Maybe May Be Too Darn Hot<\/a><\/em> discussed the late May 2026 heatwave in the UK.  This heatwave had a big effect on the mean Central England Temperature (CET) for May, and thus for the whole of Spring 2026.  This spring was hotter than that in 2025 &#8211; which <a href=\"https:\/\/timjoslin.org\/index.php\/2025\/05\/02\/april-into-may-2025-yet-more-unseasonal-uk-warmth\/\" data-type=\"link\" data-id=\"https:\/\/timjoslin.org\/index.php\/2025\/05\/02\/april-into-may-2025-yet-more-unseasonal-uk-warmth\/\">I wrote about<\/a> at the time &#8211; which in turn exceeded the previous record breaker &#8211; 2024!  Here&#8217;s my graph:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-1024x515.png\" alt=\"\" class=\"wp-image-6301 lazyload\"><noscript><img decoding=\"async\" width=\"1024\" height=\"515\" src=\"https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-1024x515.png\" alt=\"\" class=\"wp-image-6301\" srcset=\"https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-1024x515.png 1024w, https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-300x151.png 300w, https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-768x386.png 768w, https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image-1536x773.png 1536w, https:\/\/timjoslin.org\/wp-content\/uploads\/2026\/06\/image.png 1672w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><figcaption class=\"wp-element-caption\">Fig 1 Spring CET mean temperatures, graph by the author from <a href=\"https:\/\/www.metoffice.gov.uk\/hadobs\/hadcet\/index.html\">Met Office data<\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The running means (green, red and thick black lines) in Fig 1 show that, according to the CET record, UK spring temperatures are now significantly higher than any previous 5, 11 and 21, the last 5 springs being on average over a whole degree C hotter than those in any 5 year period before 1990!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note the signal in this graph of the &#8220;global cooling&#8221; period, as I highlighted in <a href=\"https:\/\/timjoslin.org\/index.php\/2026\/05\/26\/maybe-may-be-too-darn-hot\/\" data-type=\"link\" data-id=\"https:\/\/timjoslin.org\/index.php\/2026\/05\/26\/maybe-may-be-too-darn-hot\/\">my previous post<\/a>, when average spring temperatures declined from around the late 1940s until about 1980, when warming resumed.  This has continued until the present day. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The late May 2026 heatwave has lifted the mean CET for Spring 2026 above the previous highest &#8211; 2025! &#8211;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92,104,20,183,51,65,1],"tags":[205,187,185,186],"class_list":["post-6298","post","type-post","status-publish","format-standard","hentry","category-effects","category-global-climate-trends","category-global-warming","category-heatwaves","category-science","category-uk-climate-trends","category-uncategorized","tag-central-england-temperature-record","tag-global-warming","tag-heatwave","tag-weather-record"],"_links":{"self":[{"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/posts\/6298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/comments?post=6298"}],"version-history":[{"count":5,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/posts\/6298\/revisions"}],"predecessor-version":[{"id":6304,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/posts\/6298\/revisions\/6304"}],"wp:attachment":[{"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/media?parent=6298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/categories?post=6298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/timjoslin.org\/index.php\/wp-json\/wp\/v2\/tags?post=6298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}