Not so. What the compressor designer needs to know is how much of the VAPOR that was in the ambient air that will end up as WATER, that can cause serious damage in the compressed air, will escape the compressor.
Although the boiling point of water increases as a percentage of atmospheres per hundred, based on the PSI, all compressors are designed so the water does NOT exit with the compressed air. In areas of higher than average ambient humidity cyclone separators and dryers are part of the compressor design, depending on the PSI and the latent heat of compression involved.
You would understand the importance moisture and compressor design if you ever witnessed the brass on a set of gauges on an oxygen tank actually burn or the tank explode, caused by the latent heat of RE-compression. ;)
mike