As far as working in the rain...doubt many farmers work when those fields are wet.
What you could try is searching YouTube for "tractor snowplowing" or "tractor snowblowing". There's more on there then you would expect. Pretty good mix of open station and cabbed machines. Most of the road clearing machines did have cabs. I'm going to estimate a 50:50 mix (open station:cab) for the residential/farm machines.
There's one Kubota vid I recognize from TBN, BTW...
Rob, we're looking forward to pictures when that 3320 is delivered!
Ditto on the pics