[wxqc] Humidity/Dew Point

[James & Julie McNelly]

I am going to get a sling psychrometer and use a psychrometric chart to
determine what the RH should be over a couple of days and then see if I can
somehow calibrate it using my Weather Display software settings.

Jim

-----Original Message-----
From: Steve Gunn [mailto:steve_03222 at yahoo.com] 
Sent: Sunday, May 07, 2006 11:47 AM
To: wxqc at lists.gladstonefamily.net
Subject: [wxqc] Humidity/Dew Point

You mentioned tha you had a LaCrosse Weather Station.
Well, I too have one and have difficulty with my
Humidity/Dew Point. Now I do agree with the fact that
accuracy is the main goal, but I do believe that
Lacrosse has a problem. If you go to Wunderground and
pick almost any area, go to the google map of PWS and
I bet you can pick out the Lacrosse Stations by just
looking at their readings. Lacrosse appears to read
high in high humidity conditions and extremely low in
lower humidity situations.
It would be easy to say it is a microclimate
situation, but with a Lacrosse Station, I would have
to say the LaCrosse is at fault.
I really like my Lacrosse 2310, except for the Dew
Point/Humidity Readings.
I have sent my thermo/Hydro unit back tyo Lacrosse and
received a replacement that acted exactly as the
previuos unit.
WhenI contact them again, their answer is to send the
unit back for testing at a cost of $35. Then they will
sell you another unit that does the same thing.
Steve



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