California - Mountains (United States of America) is a region with a mild climate. Temperatures during the day are in the range from 5 °C (41 °F) in February to 24 °C (76 °F) in August. The least rainy month in California - Mountains is August with its 3 days of rain, the rainiest month is March, when it rains 10 days. Temperatures during the night go from -7 °C (19 °F) in February to 8 °C (46 °F) in August.