What was the global temperature during the Dinosaur period?

Variable. It was generally somewhat warmer than today, and there were no ice caps. To put in a crude summary, the Triassic was relatively arid, the Jurassic less so and the Cretaceous less so again. However, it would be wrong to interpret that as a strict trend. The climate fluctuated.

You can't sensibly come up with a neat average figure, as you're dealing with about 170 million years and a world's worth of different environments. There's also the matter of finding sufficient evidence.

Updates

<<According to studies it was sub-tropical, or HOT AS HECK! Remember dinosaurs are considered reptiles and unable to produce their own body heat...>>

I've not seen that stated in studies though, as said, the Triassic was generally arid. As for dinos being "unable to produce their own body heat", the presence of fluff and feathers on various lineages of theropods, and the profusion of small plant-eaters in the unusual Antarctic conditions of Lower Cretaceous Victoria, Australia, with no ice caps but nevertheless a polar night lasting for months on end, suggests it'd be best not to remember dinos couldn't generate body heat internally. The available evidence, including that provided by living dinos called birds, suggests that at least some did generate body heat.

Dinosaurs lived throughout the Mesozoic Era (Which includes the Triassic, Jurassic, and Cretaceous Periods).

The average global temperature throughout this period varied very slightly and was about 17.2 °C, or 62.9 °F.

I easily have only held a seance with a dinosaur who suggested that they have got been so busy basking in the solar that they forgot to consume or breed. If mankind does slightly the comparable then possibly we can cut back the ever-increasing of carbon clientele and worldwide warming will end!

According to studies it was sub-tropical, or HOT AS HECK! Remember dinosaurs are considered reptiles and unable to produce their own body heat so they relied on external high temps to survive thus "soimething happened" (some think it was ameteor that fell near Yucatan Mexico) and CHANGED the weather pushing on an ice age that killed all dinosaurs. Poor things froze :(

Average around 50 degrees.

28 deg fahrenheight ave.

100 degrees...all day...everyday. moist and humid and stinky...kind of like now.

i would think cold or cool. sometimes not very hot. because the ozone layer was perfect.