In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: divergent, convergent, and transform boundaries.
Graphics card temperatures typically range from 30c to 40c at idle and from 60c to 85c under load. Most high end video cards typically have a maximum temperature between 95c 105C, at which point the system will shut off to prevent damage. A video card is not considered to be overheating until it exceeds 90c under load. At this point, artifacting may start to occur up to the point of thermal shutdown.
Is -45 cold enough for you? It was recorded in 1937 in Boca at an elevation of 5532 feet above sea level. The hottest in California was 134 in 1913 in Death Valley, elevation is below sea level. It gets very cold in the Sierra Madre Mountains in Northern California. During the winter the San Gabriel mountains that surround LA will be topped with snow.