If you go. 1  What: Mardi Gras Upriver. 2  When: Feb. 24-26. 3  Where: Downtown Jefferson. 4  Cost: Most activities are free. 5  Information: www.mardigrasupriver.com.
monterey bay, ca: Annual Weather Averages. August is the hottest month in monterey bay, ca with an average temperature of 18Â°C (64Â°F) and the coldest is January at 11Â°C (52Â°F) .onterey bay, ca: Annual Weather Averages. August is the hottest month in monterey bay, ca with an average temperature of 18Â°C (64Â°F) and the coldest is January at 11Â°C (52Â°F) .
The numbers here tell you how hot and cold the weather usually is in Monterey, California during each month of the year. The average high and low temperatures are listed below for Monterey, in both degrees Fahrenheit and Celsius.