Pat, v4.2.0 saw a new heatindex formula implemented, refer issue 601 <https://github.com/weewx/weewx/issues/601>. The new formula gives some results in some circumstances that may appear counterintuitive. v4.3.0 added back the ‘old’ heatindex formula and gives the user the ability to choose between the two algorithms . This is covered here <http://www.weewx.com/docs/usersguide.htm#%5B%5BWXXTypes%5D%5D> in the User’s Guide under [[[heatindex]]].
By the looks of it you are seeing the ‘new’ algorithm. Gary On Thursday, 25 February 2021 at 06:36:38 UTC+10 pobri...@gmail.com wrote: > I thought heat index wasn't calculated unless the temperature was over > 80F? Today it's about 49 F and I'm seeing heat index in my charts (which is > reporting lower than temperature - I thought that was wind chill?). I don't > recall seeing it before at this temperature range. > > I just want to make sure this is expected for temperatures so low to have > a heat index reading? > > Top graph is Seasons skin and bottom is Belchertown skin. The values match > across skins > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/f46bd022-500d-414e-b96b-c2bc382d37b9n%40googlegroups.com.
