Rod, at 15:34 on Jun 01 1996, you wrote to Bill Grimsley...

BG> Maybe Ascot stays relatively warm, but out here we often
BG> have morning AIR temperatures as low as -3øC during winter

RS> I find that VERY hard to believe. 

Be that as it may, it's where the overnight minimum pointer ends up.

RS> That is called an 'air frost' and is rare here, tho it certainly happens 
RS> every year.

Nothing too techo here at all; no Stevenson screens, no anemometers, no
barometer, only a max/min recording thermometer, a wet & dry bulb, and
my trusty old rain-gauge.

RS> I find it hard to believe that you see that 'often' when measured properly
RS> in a stevenson screen.

Imagine a high-set house, with the thermometer mounted at eye-level on the
first floor, maybe 12-14 feet in total from the ground, and on a part of
the house which receives NO direct sunlight at ANY time of the year.  It
might not be perfect, but it's certainly adequate for my purposes.

RS> I bet the official figures dont say that.

That's quite correct.  They sure don't.

RS> And I dont mean the official Bris site either.

Sure, that's at the top of Wickham Terrace, a place not normally noted for
its excessively cold overnight minima.  The other official sites are now at
the airports, Eagle Farm, Archerfield, and Amberley (of those three sites,
we most closely mirror Amberley here).

BG> (and down to -7øC on the grass)!

RS> Thats not so hard to believe.

It's real fun walking on it whilst bare-footed, too.  :)

Regards, Bill
@EOT:

--- MsgedSQ/2 3.30