In Texas you know it's summer when the secadas start their daily serenade, the rise and fall of their songs is hypnotic. As I sit in my air conditioned house their song seems to bring the heat inside a little. I have vivid memories of being a little girl in Texas for the summer to visit my grandparents, I would hear their song but never saw the source of it, so I always thought that the noise was the sound that the heat from summer makes. The secadas' song will always mean Hot to me.
You also know it's summer when after a haircut from Daddy, it works just fine to strip your kiddo down and give them a shower in the front yard with the garden hose.