Not to my knowledge. I've owned the house for 10 years and it has worked perfectly every year, but I'm pretty sure there's not any kind of rain sensor on it. It has operated in the pouring rain many times before.
None of my sprinklers in any zone will come on. I recently unplugged my power box to my sprinkler system and when I plugged it back in, none of the sprinklers would come on. When I cylcle through, the box is working and indicates the sprinklers should be running, but they don't physically come on. Previous to this, they worked fine. I'm having trouble finding any information about this online.
