Path: csiph.com!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail From: john larkin Newsgroups: sci.electronics.design Subject: Re: Operating temperatures Date: Fri, 24 Oct 2025 08:12:32 -0700 Organization: A noiseless patient Spider Lines: 30 Message-ID: References: <10dg0ne$2kgnq$1@dont-email.me> <10dg424$2lfoj$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Injection-Date: Fri, 24 Oct 2025 15:12:36 +0000 (UTC) Injection-Info: dont-email.me; posting-host="21ecbc05031b9780127e484c3dca1b53"; logging-data="2818910"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+9J6IvpqEUogMw1S7HJR38" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:JhoHeb5CWmrXU9s47g0LJPAMfIY= Xref: csiph.com sci.electronics.design:737114 On Fri, 24 Oct 2025 15:56:04 +0100, Martin Brown <'''newspam'''@nonad.co.uk> wrote: >On 24/10/2025 14:58, Don Y wrote: >> Having to deal with formally specifying operating temperatures >> of my devices, I've started canvassing other products that are >> typically installed and/or operated outdoors. >> >> Disturbing to see many *proud* to claim 40C!  Our ambient outdoor >> temperature is in that range for about 1/6 of the year!  And, from >> *reports* of recent weather and climate patterns, it seems like >> much of the continental US will find itself in this boat, sooner >> or later. > >In the UK we see 35C once in a blue moon and 30C is newsworthy. > >https://www.metoffice.gov.uk/about-us/news-and-media/media-centre/weather-and-climate-news/2025/summer-2025-is-the-warmest-on-record-for-the-uk > >All time record temperature recorded as 35.8C in Faversham, Kent. >Good news for the south of England is that it is now perfect for growing >grapes suitable for making champagne whilst in France it is now too hot! >> I wonder how many more annual temperature observations we make now, as compared to a century ago? The ratio might be a million to one. John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics