Mediterranean-style weather with scorching summers can be found in Paso Robles, which is typical of coastal Southern California. Long, dry summers and short, chilly, rainy winters are what this implies. With moderate autumns and early springs, the area has a special environment that supports a wide variety of crops, most notably grapes, olives, and nuts. 14.71 inches of rain fall on average each year, mainly in the winter and spring. From late June to mid-September, the summers are sweltering, frequently topping 100 °F, yet Paso Robles enjoys a large day-to-night temperature difference that is advantageous to grape growth. Winters are cool and humid with lows in the 50s °F during the day and chilly mornings and evenings, especially in December and January when lows can drop as low as 22 °F. By 10 a.m., the occasional morning fog from the adjacent Pacific Ocean is usually gone.