Is it possible to retrieve data on the minimum and maximum temperature recorded during the day with time and temperature? I need that information to get to me via UDP message.
Just collect the temperature data using UDP and maintain your own min/max temps with resets when it makes sense to you.
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obligatory weewx answer applies…
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Yes. I access it using the API and display it in my graphs such as this:
I loop through the values returned from the API to set the max min etc.
cheers Ian 
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