water collecting behind glove compartment

The condensation that is collecting is not from rain but created by the air conditioning system and that part is normal. It is most likely the hose that is supposed to vent the heater box behind the dash is blocked or restricted and not allowing the moisture to vent harmlessly to the firewall where it drops to the ground under the car. Locate the small diameter rubber hose around the carpet level line under the glove box area on the passenger side of the car with the passenger door open, remove it and see if the hose is restricted. clear the hose using a small close hanger.