In general these varied groups of people live in a high, semiarid country watered by winter snows, sudden summer showers, and rivers from the mountainous north. Here, also, the southwest trade winds drop their moisture throughout the year. However, moisture is much needed in midsummer—by late July and August. It is at this time that the greatest activity is apparent among those cults whose duty it is to produce rain. The climate, on the whole, is healthful and invigorating. The temperature is fluctuating: intense heat of the summer day is mitigated by cool nights, and the hardship caused by the few winter storms is more than alleviated by the many days of unbroken sunshine. It is thus possible to spend much time out of doors.