Gender is what actually gets expressed â how we look, how we act and how we feel. While sex is determined by what is written into the chromosomes or what is dictated by our biology, known as genotype, it is the interaction between the genes (genotype) and the environment that determines gender.
Here are the average temp in Yosemite Valley (where CV is located) by month: www.nps.gov/yose/planyourvisit/climate.htm. Also beginning of September is usually still quite warm. Nights can have a bit of a chill, but nothing a couple of blankets can't handle.
September weather is generally great. Low humidity, temps in the 60's during the day, 40's at night, and not that rainy. However, once in a while you can also get: daytime temps in the 30's or 40's with snow showers, or daytime temps around 90, so come prepared either way.