Their hospitality is not only from Sierra Vista staff but also from the weather. During all four seasons there are people picnicking while enjoying a bottle of Sierra Vista wine and the Sierra Vista view of the Crystal Range of the Sierra Nevada Mountains. Often in the winter there are days when you can picnic in shirt sleeves with comfort. If it is foggy in the Sacramento Valley, and there is no storm, the sun is shining on Sierra Vista and it will be many degrees warmer. However, in the summer when it is hot in the valley it will be 10 to 12 degrees cooler at Sierra Vista. You are welcome at any time.