Both lactose intolerance and milk allergies can have the same symptoms, but milk allergy involves the immune system whereas lactose intolerance involves the digestive system, Kidshealth.org says.
Guide to California weather in December. The average maximum daytime temperature in California in December is a comfortable 20Â°C (68Â°F). The average night-time temperature is usually a cool 8Â°C (46Â°F). There are usually 7 hours of bright sunshine each day, which represents 69% of the 10 hours of daylight.
Weather of San Francisco in December. December is the time winters set foot in the city of San Francisco. Though it gets chillier in January, you can experience the chills in December, too. The winds blowing from Pacific Coast also lead to a dip in temperature.