Moosing happens any and all times. lol
It was mostly cooler/moist days for me. But hot days with a lot of engine heat soak (from the car being off a minute) then a restart would get it, too.
If its a noise that makes you close one eye (like nails on a chalkboard) and look around to make sure nobody saw you and your embarassing car noise, then it was the moose.
