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.
Related Articles. December brings frosty weather to much of the United States, but travelers seeking to defrost on a warm-weather vacation need not despair. Destinations like South Florida, Hawaii, South Texas and Southern California offer the most reliable winter warmth in the U.S., along with activities like surfing, beach combing and snorkeling.