Notes
- Weather station first set up in North Bend, WA 2008.
- Weather station moved to Columbia, South
Carolina around July, 2011
- Weather station setup in Spokane, WA (Lincoln
Heights) around the end of April, 2012.
- Weather station was moved to Coeur d'Alene,
Idaho around 1 October, 2012.
- The outdoor humidity measurements began
drifting upward in October, 2012 with values
exceeding 100%. From the trend data, it appears
that this sensor (26.A450B6000000) began to become
unreliable towards the end of September - first of
October.
- 11/4/2012 (around 1pm PST). The outside
humidity board was replaced and an additional
stand-alone temperature sensor added. Previously,
the outside temperature measurements were taken
from the sensor (10.0F6094010800) collocated on the
humidty sensor board. Temperature values recorded
from an identical board located indoors were
consistently about 3 degrees F higher than an
adjacent stand-alone temperature
sensor (10.6D6F6B010800). The difference appears to
be due to the proximity of the integrated sensors
to a DC voltage regulator used by the humidity
sensor which generates some heat. It should be
possible to estimate this bias and back it out of
the historical data
- The bias in temperature for both older
humidty boards has been estimated using a closely
located stand-alone temperature
sensor (10.6D6F6B010800). The biases have been
estimated at 3 degrees F for the indoor humidity
board (10.0F6094010800), and 1 degree F for the
humidity board which was formerly
outside (10.29866B010800). These differences have
now been compensated for in the device tables so
that the historical displays are more accurate.
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