In article ,
Martin Rowley writes:
I think that the wet-bulb temperature is the critical one. IIRC
that
lies in between the ordinary "dry bulb" temperature and the dew
point,
Knowing any two of the three temps, I imagine one could calculate
the
third id one knew how.


... the Internet is awash with these calculators: the problem is
knowing which ones are right!

This one *appears* to do a good job, but I haven't checked it across a
broad range of readings ....

http://www.srh.noaa.gov/epz/?n=wxcalc_dewpoint

Martin.


Thanks. As it's on NOAA's site, one would hope that it was right!
--
John Hall "[It was] so steep that at intervals the street broke into steps,
like a person breaking into giggles or hiccups, and then resumed
its sober climb, until it had another fit of steps."
Ursula K Le Guin "The Beginning Place"