{"id":386131,"date":"2026-07-25T09:30:09","date_gmt":"2026-07-25T09:30:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-tx\/386131\/"},"modified":"2026-07-25T09:30:09","modified_gmt":"2026-07-25T09:30:09","slug":"when-does-houston-usually-reach-100-degrees-heres-what-history-says","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-tx\/386131\/","title":{"rendered":"When does Houston usually reach 100 degrees? Here’s what history says"},"content":{"rendered":"

Houston may be just days away from its first prolonged stretch<\/a> of 100-degree heat this summer, but history shows it\u2019s arriving right on schedule.<\/p>\n

The forecast through the weekend is about as straightforward as summer weather gets. Sunshine will dominate, rain chances remain scarce and afternoon temperatures will climb into the upper 90s before likely reaching 100 degrees across much of Southeast Texas early next week.<\/p>\n

With little day-to-day change expected, the more interesting story may be what history says about Houston\u2019s hottest weather. While triple-digit heat can happen anytime from June into late September, the city is entering the climatological sweet spot for 100-degree temperatures.<\/p>\n

Saturday will feature mostly sunny skies with only a stray afternoon shower or thunderstorm. Temperatures will reach the upper 90s across much of the Houston area, with a few inland communities flirting with 100 degrees.<\/p>\n

Afternoon heat index values are\u00a0expected to range between 105 and 110<\/a> degrees. While that\u2019s just below the National Weather Service\u2019s criteria for a heat advisory for now, the heat will still be dangerous if you spend time outdoors or perform strenuous activities during the hottest part of the day.<\/p>\n

Forecast confidence also continues to increase that Houston could see several consecutive days of triple-digit temperatures beginning early next week as high air pressure strengthens over Texas.<\/p>\n

Despite Houston\u2019s reputation for oppressive summers, the city\u2019s window for triple-digit temperatures is surprisingly short.<\/p>\n

On average, Houston records its first 100-degree day around July 19 and its last around Aug. 10, meaning the typical 100-degree season lasts only about 23 days. This year\u2019s first 100-degree day<\/a> came on July 22, only a few days later than average.<\/p>\n

That doesn\u2019t mean we won\u2019t ever get triple-digit heat outside that window. Houston\u2019s earliest date for a 100-degree day is June 2, when that happened in 2011. The latest date for a 100-degree day was Sept. 27 in 2005, highlighting just how much the season can vary from year to year.<\/p>\n

Not quite.\u00a0While 100-degree temperatures have become much more common in recent decades, they\u2019re still not a guarantee. Houston\u2019s climate records show many summers\u00a0\u2014 particularly before the 1990s\u2014never reached the century mark. Even so, only four of the past 30 years have failed to record at least one 100-degree day, underscoring just how much more common triple-digit heat has become in the modern climate.<\/p>\n

That\u2019s one reason next week\u2019s forecast is noteworthy. If the current outlook holds, Houston won\u2019t just record another 100-degree day\u00a0\u2014 it could experience its first prolonged stretch of triple-digit heat this summer, arriving almost exactly when history suggests it\u2019s most likely.<\/p>\n","protected":false},"excerpt":{"rendered":"Houston may be just days away from its first prolonged stretch of 100-degree heat this summer, but history…\n","protected":false},"author":2,"featured_media":386132,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[56,58,57],"class_list":["post-386131","post","type-post","status-publish","format-standard","has-post-thumbnail","category-houston","tag-houston","tag-houston-headlines","tag-houston-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts\/386131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/comments?post=386131"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts\/386131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/media\/386132"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/media?parent=386131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/categories?post=386131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/tags?post=386131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}