Cloudy Day Sunny Day February 3, 2012 7:35 AM Subscribe What is
the sunniest day of the year? and how is that determined? Of
course this varies by location. For me, right now, that's
Portland Oregon, but next month these architects I work with
might consider a building in a different location. posted by
Prince_of_Cups to science & nature (3 answers total) I am asked,
given TMY3 data (here's a list of the relevant data in the TMY3
set ), how to determine the sunniest days and most overcast days
in the typical meteorological year data set. Are "sunniest day"
(or "least overcast day") and "most overcast day" defined in
meteorology? or are they bogus data deployed by evening news
weatherpeople to fill air time? Is there an accepted means to
determine the record day for least and most overcast, taking
into account direct/diffuse normal/horizontal illuminance and
hourly sky cover? Bonus question: can anyone recommend a good
textbook introduction to meteorology that provides an
understanding of the definitions and s