[Shotimes] AC woes

[Mike]

This is only the second time I've been in 100+ temps since I've had my garage
queen 95 ATX.  Both times the same thing:  the ac blows warm air.  Today at
105 (major heat wave in SoCal; my daughter had to play soccer in it) it
wouldn't get cold at all.  But driving home as the temp dipped below 100,
voila.  Cold air.  Worked great all the way home.  So very hot temps cause no
AC; is this likely a clutch problem, or something else?
Mike