| Wrapping up a season usually ends at the end of April.
In 2004 when George was filming Evel Knievel, he said CSI shooting ended April 28th and he began shooting EK May 1st. Then that's when the firing fiasco happened. They were supposed to be back July 12th, but because of that and some technical crap, they didn't get to filming middle of July.
In 2005, they began shooting in August due to William Petersen's heart condition and some technical glitches.
I presume they are done now for the season and will pick up back in July. That is when most (99.9%) of seasons who begin airing in September start to film unless to circumstances beyond their control. Some even begin in June. |