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[TowerTalk] Weather stations

Subject: [TowerTalk] Weather stations
From: WO0W <>
Date: Fri, 16 Oct 2009 10:37:15 -0500
List-post: <">>
I have no experience with the La Crosse weather instruments.  I used 
Peet Brothers instruments for several years, but each of two anemometers 
failed after only a couple years.  I replaced them with a Davis weather 
station.  It has functioned without failure and the software stores data 

Neither was of certifiable accuracy.  I chuckle at reports of 
temperature to a tenth of a degree, of barometric pressure to a 
thousandth of an inch, or of rainfall to a hundredth of an inch.

It is important to mount the instruments in accordance with accepted 
measuring standards if one wishes to compare the data with that of 
standard weather stations.  For example, the temperature sensor must be 
1.5 meters above grass and shielded from direct solar radiation.  The 
anemometer must be 10 meters above earth and at prescribed minimum 
distances from structures and other disturbing features.  A Google 
search should locate the international standards for these rules. 

An amateur may not be able to comply with all the rules, but should know 
what the deviations are and should state them when sharing data with others.

73, WOØW

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