Now you’re asking a trick question. A lot of our patients have pet snakes, in their heated homes, and sometimes those animals are awake year round. (Suggestion: on New Year’s Eve do not attempt to handle snakes.) But if you’re wondering when to expect to see them outdoors, then the answer is going to depend on where you live. Colder climates have shorter “snake seasons.” Here in Arizona we start hearing about outdoor rattlesnake bites around March. Cases peak in August and fade away again in November.