That was just me saying that I'm not militant about the weather being as observed. Setting the weather so that it matches the mood of the plot is fine. It's more I don't know the climatic variation in San Antonio. I can give you a reasonable climate range for everything within 500 miles of LA, but weather on the other side of the Dry Line is a bit mysterious to me, enough that I have to look it up.
"Kitto daijoubu da yo." - Sakura Kinomoto