Author Topic: Is a drop of 2 degrees in shade ok?  (Read 500 times)

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Offline ggsteve

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Is a drop of 2 degrees in shade ok?
« on: September 17, 2016, 04:50:16 PM »
I have been analyzing my Rainwise MK III temperature graphs since I moved the unit from the peak of the roof where it was hard to service to the eve where I can get at it from my ladder.  I noticed a dip in temperature each day at around 4pm, increasing about 2 degrees by about 4:30.  I guessed shade, and sure enough, I checked it today and the drop occurred as the sun passed behind a large white pine.  Obviously this spike will change with the seasons, but is a 2 degree difference between light and shade an acceptable difference in value?  It's not like I can do much about it, I live among trees and Rainwise does not offer fan aspiration.
Rainwise Mk III w/wind extension, Oracle Multi & IP-100  West Townsend, MA
Wunderground: https://www.wunderground.com/personal-weather-station/dashboard?ID=KMATOWNS8#history
https://rainwise.net/weather/steve01474
http://www.pwsweather.com/obs/MORSE1.html
http://www.awekas.at/en/instrument.php?id=12597
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CoCoRaHS: MA-MD-47
Skywarn Spotter ID: 16-266
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Davis Vantage Pro2 w/WL Fitchburg H.S., Fitchburg, MA
Wunderground: https://www.wunderground.com/personal-weather-station/dashboard?ID=KMAFITCH5#history
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Offline CW2274

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Re: Is a drop of 2 degrees in shade ok?
« Reply #1 on: September 17, 2016, 04:54:40 PM »
Without a fan, I think that's pretty good.
Davis Wireless VP2 SHT31 24hr 67CFM FARS
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