{"id":61069,"date":"2026-07-28T10:33:31","date_gmt":"2026-07-28T08:33:31","guid":{"rendered":"https:\/\/alertes-meteo.com\/?page_id=61069"},"modified":"2026-07-28T11:21:03","modified_gmt":"2026-07-28T09:21:03","slug":"ecart-a-la-moyenne-des-temperatures-en-novembre-depuis-1921-en-france-un-automne-de-plus-en-plus-doux","status":"publish","type":"page","link":"https:\/\/alertes-meteo.com\/index.php\/climatologie\/ecart-a-la-moyenne-des-temperatures-en-novembre-depuis-1921-en-france-un-automne-de-plus-en-plus-doux\/","title":{"rendered":"\u00c9cart \u00e0 la moyenne des temp\u00e9ratures en novembre depuis 1921 en France : une fin d’automne de plus en plus douce"},"content":{"rendered":"

\u00c9cart \u00e0 la moyenne des temp\u00e9ratures en novembre<\/b><\/h1>\n

Novembre<\/strong> marque g\u00e9n\u00e9ralement l’entr\u00e9e dans la p\u00e9riode la plus froide de l’ann\u00e9e, avec des journ\u00e9es plus courtes, des premi\u00e8res gel\u00e9es g\u00e9n\u00e9ralis\u00e9es et des perturbations plus fr\u00e9quentes. Pourtant, les observations m\u00e9t\u00e9orologiques r\u00e9alis\u00e9es depuis 1921 montrent une \u00e9volution significative des temp\u00e9ratures en France. L’analyse des \u00e9carts \u00e0 la moyenne r\u00e9v\u00e8le une augmentation progressive des anomalies positives, traduisant un mois de novembre globalement plus doux qu’au cours du si\u00e8cle dernier.<\/p>\n

Une hausse progressive des temp\u00e9ratures en novembre<\/h2>\n

Des anomalies positives de plus en plus fr\u00e9quentes<\/h3>\n

L’\u00e9cart \u00e0 la moyenne des temp\u00e9ratures<\/strong>, aussi appel\u00e9 anomalie thermique, mesure la diff\u00e9rence entre la temp\u00e9rature moyenne observ\u00e9e et la normale climatique de r\u00e9f\u00e9rence.<\/p>\n

Entre 1921 et la fin des ann\u00e9es 1970, les mois de novembre alternaient entre p\u00e9riodes plus fra\u00eeches et plus douces, sans tendance clairement marqu\u00e9e. Depuis les ann\u00e9es 1980, les anomalies positives deviennent largement majoritaires. Les temp\u00e9ratures moyennes de novembre d\u00e9passent d\u00e9sormais plus souvent les normales saisonni\u00e8res, confirmant l’\u00e9volution du climat en France.<\/p>\n

Quels sont les impacts de ce r\u00e9chauffement ?<\/h3>\n

Des mois de novembre plus doux ont plusieurs cons\u00e9quences :<\/p>\n

    \n
  • un retard des premi\u00e8res gel\u00e9es dans de nombreuses r\u00e9gions ;<\/li>\n
  • une prolongation de la saison de v\u00e9g\u00e9tation pour certaines esp\u00e8ces ;<\/li>\n
  • une modification des cycles biologiques de la faune et de la flore ;<\/li>\n
  • une baisse ponctuelle des besoins en chauffage ;<\/li>\n
  • une \u00e9volution des conditions d’enneigement en moyenne montagne.<\/li>\n<\/ul>\n

    Ces changements influencent \u00e9galement l’agriculture, la biodiversit\u00e9 et la gestion des ressources naturelles.<\/p>\n<\/div>\n

    \n
    \n

    \u00c9cart \u00e0 la moyenne des temp\u00e9ratures en novembre depuis 1921 (France)<\/h2>\n

    Normale de r\u00e9f\u00e9rence 1991-2020<\/p>\n <\/div>\n\n

    \n Cliquez sur une barre pour afficher l\u2019ann\u00e9e et l\u2019\u00e9cart \u00e0 la normale.\n <\/div>\n\n
    \n
    \n \n Anomalies de temp\u00e9rature en novembre en France, de 1921 \u00e0 2025<\/title>\n <desc id=\"nov-desc\">\n Histogramme des \u00e9carts \u00e0 la normale 1991-2020. Les valeurs positives sont rouges\n et les valeurs n\u00e9gatives sont bleues. Chaque barre est interactive.\n <\/desc>\n <\/svg>\n <div class=\"nov-tooltip\" data-nov-tooltip role=\"status\" aria-hidden=\"true\"><\/div>\n <\/div>\n <\/div>\n\n <div class=\"nov-legend\" aria-label=\"L\u00e9gende\">\n <span><i class=\"nov-dot nov-dot-positive\"><\/i> Plus chaud que la normale<\/span>\n <span><i class=\"nov-dot nov-dot-negative\"><\/i> Plus froid que la normale<\/span>\n <\/div>\n\n <p class=\"nov-note\">Novembre 2026 n\u2019a pas encore commenc\u00e9 : il n\u2019est pas inclus dans l\u2019histogramme.<\/p>\n <p class=\"nov-source\">\n Sources : M\u00e9t\u00e9o-France (valeur 2025) \u2022 Normale climatologique 1991-2020\n <\/p>\n<\/div>\n\n<style>\n .nov-widget,\n .nov-widget * {\n box-sizing: border-box;\n }\n\n .nov-widget {\n --nov-red: #e85236;\n --nov-blue: #5c9ae3;\n --nov-grid: #dfe4ea;\n --nov-ink: #17202a;\n --nov-muted: #59636e;\n width: 100%;\n max-width: 1180px;\n margin: 24px auto;\n padding: clamp(18px, 3vw, 32px);\n overflow: hidden;\n color: var(--nov-ink);\n background: #ffffff;\n border: 1px solid #e8ebef;\n border-radius: 18px;\n box-shadow: 0 12px 34px rgba(23, 32, 42, 0.09);\n font-family: Arial, Helvetica, sans-serif;\n }\n\n .nov-header h2 {\n margin: 0;\n font-size: clamp(21px, 2.6vw, 31px);\n line-height: 1.18;\n letter-spacing: -0.02em;\n }\n\n .nov-header p {\n margin: 8px 0 0;\n color: var(--nov-muted);\n font-size: 15px;\n }\n\n .nov-selection {\n min-height: 49px;\n margin: 20px 0 12px;\n padding: 12px 15px;\n color: #34404c;\n background: #f5f7fa;\n border-left: 4px solid #8995a3;\n border-radius: 9px;\n font-size: 15px;\n line-height: 1.4;\n }\n\n .nov-selection strong {\n color: var(--nov-ink);\n }\n\n .nov-selection.is-positive {\n background: #fff3f0;\n border-left-color: var(--nov-red);\n }\n\n .nov-selection.is-negative {\n background: #eff6ff;\n border-left-color: var(--nov-blue);\n }\n\n .nov-selection.is-neutral {\n background: #f5f7fa;\n border-left-color: #707b86;\n }\n\n .nov-scroll {\n width: 100%;\n overflow-x: auto;\n overflow-y: hidden;\n scrollbar-color: #aeb7c2 #edf0f3;\n scrollbar-width: thin;\n -webkit-overflow-scrolling: touch;\n }\n\n .nov-stage {\n position: relative;\n width: 100%;\n min-width: 900px;\n }\n\n .nov-svg {\n display: block;\n width: 100%;\n height: auto;\n overflow: visible;\n touch-action: pan-x pan-y;\n }\n\n .nov-grid-line {\n stroke: var(--nov-grid);\n stroke-width: 1;\n vector-effect: non-scaling-stroke;\n }\n\n .nov-zero-line {\n stroke: #1c2732;\n stroke-width: 1.7;\n vector-effect: non-scaling-stroke;\n }\n\n .nov-y-label,\n .nov-x-label,\n .nov-axis-unit {\n fill: #68727d;\n font-family: Arial, Helvetica, sans-serif;\n }\n\n .nov-y-label {\n font-size: 13px;\n text-anchor: end;\n dominant-baseline: middle;\n }\n\n .nov-x-label {\n font-size: 11px;\n text-anchor: middle;\n }\n\n .nov-axis-unit {\n font-size: 12px;\n font-weight: 700;\n }\n\n .nov-bar {\n cursor: pointer;\n outline: none;\n }\n\n .nov-bar-visible {\n transition: opacity 0.14s ease, filter 0.14s ease;\n shape-rendering: geometricPrecision;\n }\n\n .nov-bar:hover .nov-bar-visible,\n .nov-bar:focus .nov-bar-visible,\n .nov-bar.is-selected .nov-bar-visible {\n opacity: 1;\n filter: brightness(0.83);\n }\n\n .nov-bar:focus-visible .nov-bar-visible {\n stroke: #111820;\n stroke-width: 2;\n vector-effect: non-scaling-stroke;\n }\n\n .nov-hit-area {\n fill: transparent;\n pointer-events: all;\n }\n\n .nov-tooltip {\n position: absolute;\n z-index: 4;\n width: max-content;\n max-width: 235px;\n padding: 10px 12px;\n color: #ffffff;\n background: rgba(18, 25, 33, 0.96);\n border-radius: 9px;\n box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);\n font-size: 13px;\n line-height: 1.35;\n pointer-events: none;\n opacity: 0;\n transform: translate(-50%, calc(-100% - 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25,\n class: \"nov-x-label\"\n });\n label.textContent = year;\n labelsGroup.appendChild(label);\n });\n svg.appendChild(labelsGroup);\n\n svg.addEventListener(\"click\", (event) => {\n if (event.target === svg || event.target.classList.contains(\"nov-grid-line\")) {\n removeSelection();\n hideTooltip();\n }\n });\n });\n })();\n<\/script>\n<div class=\"fusion-text fusion-text-2\"><p><a href=\"https:\/\/alertes-meteo.com\/index.php\/climatologie\/ecart-a-la-moyenne-des-temperatures-en-octobre-depuis-1921-en-france-un-automne-qui-se-rechauffe-durablement\/\"><b>Pour le mois d’octobre<\/b><\/a><\/p>\n<p style=\"text-align: right;\"><a href=\"https:\/\/alertes-meteo.com\/index.php\/climatologie\/ecart-a-la-moyenne-des-temperatures-en-novembre-depuis-1921-en-france-une-fin-dautomne-de-plus-en-plus-douce-cloned\/\"><strong>Pour le mois de d\u00e9cembre<\/strong><\/a><\/p>\n<\/div><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-8902396130105212\"\n crossorigin=\"anonymous\"><\/script>\n<!-- bas de page -->\n<ins class=\"adsbygoogle\"\n style=\"display:block\"\n data-ad-client=\"ca-pub-8902396130105212\"\n data-ad-slot=\"7724440717\"\n data-ad-format=\"auto\"\n data-full-width-responsive=\"true\"><\/ins>\n<script>\n (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><div class=\"fusion-text fusion-text-3\"><h2>Comment interpr\u00e9ter un \u00e9cart \u00e0 la moyenne ?<\/h2>\n<p class=\"isSelectedEnd\">Une anomalie positive signifie que la temp\u00e9rature moyenne du mois de novembre est sup\u00e9rieure \u00e0 la normale climatique. Cela n’emp\u00eache pas la survenue d’\u00e9pisodes de froid, de brouillards persistants ou de premi\u00e8res chutes de neige selon les r\u00e9gions.<\/p>\n<p class=\"isSelectedEnd\">\u00c0 l’inverse, une anomalie n\u00e9gative indique un mois globalement plus froid que la moyenne, une situation devenue moins fr\u00e9quente au cours des derni\u00e8res d\u00e9cennies.<\/p>\n<h2>FAQ<\/h2>\n<h3>Que repr\u00e9sente un \u00e9cart \u00e0 la moyenne des temp\u00e9ratures ?<\/h3>\n<p class=\"isSelectedEnd\">Il correspond \u00e0 la diff\u00e9rence entre la temp\u00e9rature moyenne observ\u00e9e durant le mois et la normale climatique de r\u00e9f\u00e9rence.<\/p>\n<h3>Pourquoi novembre est-il plus doux qu’autrefois ?<\/h3>\n<p class=\"isSelectedEnd\">Cette \u00e9volution s’explique principalement par le r\u00e9chauffement climatique, qui entra\u00eene une hausse progressive des temp\u00e9ratures moyennes en France.<\/p>\n<h3>Peut-il encore neiger en novembre ?<\/h3>\n<p class=\"isSelectedEnd\">Oui. Des \u00e9pisodes neigeux restent possibles, notamment en montagne et parfois jusqu’en plaine lors d’\u00e9pisodes de froid marqu\u00e9s.<\/p>\n<h3>Depuis quand cette tendance est-elle visible ?<\/h3>\n<p class=\"isSelectedEnd\">Les anomalies positives deviennent particuli\u00e8rement fr\u00e9quentes \u00e0 partir des ann\u00e9es 1980 et se renforcent au cours du XXI\u1d49 si\u00e8cle.<\/p>\n<h3>Quels secteurs sont les plus concern\u00e9s ?<\/h3>\n<p class=\"isSelectedEnd\">L’agriculture, les \u00e9cosyst\u00e8mes, les stations de montagne, les ressources en eau et la consommation \u00e9nerg\u00e9tique sont directement impact\u00e9s par cette \u00e9volution.<\/p>\n<h2>Conclusion<\/h2>\n<p class=\"isSelectedEnd\">L’\u00e9volution des temp\u00e9ratures en novembre depuis 1921 met en \u00e9vidence une tendance claire au r\u00e9chauffement en France. Les \u00e9carts positifs \u00e0 la moyenne deviennent plus fr\u00e9quents, contribuant \u00e0 des automnes plus doux et \u00e0 une modification progressive des caract\u00e9ristiques climatiques de la saison.<\/p>\n<h2>Consultez nos analyses climatiques<\/h2>\n<p>Retrouvez nos graphiques climatiques, nos statistiques m\u00e9t\u00e9o, nos <a href=\"https:\/\/alertes-meteo.com\/index.php\/2026\/07\/27\/previsions-saisonnieres\/\">pr\u00e9visions saisonni\u00e8res<\/a> et nos analyses d\u00e9taill\u00e9es pour suivre l’\u00e9volution des temp\u00e9ratures en France et mieux comprendre les changements climatiques observ\u00e9s depuis plus d’un si\u00e8cle.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":61070,"parent":60843,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"\u00c9cart \u00e0 la moyenne des temp\u00e9ratures en novembre en France depuis 1921 : \u00e9volution et anomalies climatiques","_seopress_titles_desc":"Analysez l'\u00e9volution des temp\u00e9ratures en novembre en France depuis 1921 et d\u00e9couvrez les \u00e9carts \u00e0 la moyenne qui illustrent le r\u00e9chauffement climatique.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"temperature mer","footnotes":""},"class_list":["post-61069","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/61069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/comments?post=61069"}],"version-history":[{"count":6,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/61069\/revisions"}],"predecessor-version":[{"id":61098,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/61069\/revisions\/61098"}],"up":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60843"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/media\/61070"}],"wp:attachment":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/media?parent=61069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}