I remember a game where we scored 9 in the first half @ Tech. Looking it up, we still made it into the 40s in that game.
UConn a couple years ago was close... 36.
Edit- also in 03-04 we had a loss to drake where we had only 36. Same year we also lost to KSU, 68-33.
I believe 33 is the low mark of the Fennelly era though.
Scanning through cyclones.com schedules, i may have missed something, but i had to go back to Feb 16, 1993 to get a lower score. (79-29 colorado), and out of curiosity i kept going back, i couldnt find another lower score than 33 going back as far as i could to 75. So if that's correct itd be the lowest score in the Fennelly era, second lowest (tied) in 35 years.