* Ambient temperature: The hotter it is outside, the harder the AC has to work, and the slightly warmer the air coming out might be.
* AC system's condition: A well-maintained system will generally produce colder air than one needing service (recharge, etc.).
* Blower fan speed: A higher fan speed will generally feel colder, even if the actual air temperature is the same.
* Your personal preference: What one person considers "cold enough" another might find too cold.
However, a properly functioning AC system in a 1995 Chevy S10 should be able to deliver air significantly cooler than the outside ambient temperature. A reasonable expectation would be to achieve air between 40-45°F (4-7°C) at the vents on a hot day, with the system running at full capacity. If the air coming from the vents is only slightly cooler than the outside temperature, or if it's significantly warmer than that range, you likely have a problem requiring professional AC service.
