Could the differences you 'observe' be caused by physical factors such as mounting position above the ground, terrain around sensor, one station in shade one exposed to sun, not all fan aspirated etc etc?? a strong sun can really heat up some kinds of soil and vegetation which is then radiated and reflected around - unless you are all using the same Stephenson screens at the same height above ground.
On Wednesday, 25 January 2017 05:12:26 UTC+2, Michael Connors wrote: > I am curious whether one of the programmers of the weewx driver or > application for the Acurite 2036C could add a means to offset the > temperature by different values between > sunrise and sunset, and sunset and sunrise. The current configuration > file (see below) allows the use of a formula to change the readings but it > is not time specific. (see below) > > The Acurite 5-in-1 temperature accuracy is poor during the summer, due to > the intense summer sun heating of the instrument body causing the > temperature to read higher than the actual > temperature really is even when the fan is running. The reading can read > as much as 4° to 5° higher than the actual temperature from my experience. > This is comparing my temperature readings to nearby > CWOP weather stations within a couple miles. > > > ######################################################################## > # This section can adjust data using calibration expressions. > > [StdCalibrate] > > [[Corrections]] # For each type, an arbitrary calibration > expression can be given. > # It should be in the units defined in the StdConvert section. > # Example: > #foo = foo + 0.2 > > pressure = pressure - 0.038388984 # -0.9 hPa > > ########################################################################## > > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
