wind.vecdir aggregation and null values for wind direction

[jterr...@gmail.com]

Hello,

I observed recently that the wind.vecdir aggregation type return 90 degrees  if all windDir observation are null within the aggregation period.

With a Vantage Pro at least, the windDir is null if windSpeed = 0 during the archive period.

So for exemple, the tag $hour.wind.vecdir.raw return 90 if all the windDir during the last hour were null.  I would expect to have a null value instead.

[jterr...@gmail.com]

I forgot to say that I am running weewx 4.10.2 and that my version of sqlite3 does not support math function.

[Tom Keffer]

Thanks, Jacque

Could you please file an issues report with whatever details you might have? I don't have time to take a look at this now, but the report will make sure it's not forgotten. 

https://github.com/weewx/weewx/issues

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