The outdoor hot and cold temperatures in the San Francisco Bay Area are always moderate and comfortable, and san Francisco has some of the best weather on the west coast, but the Summer weeks are quite pleasant and hot and cold temperatures rarely break 90; Even while every one of us were in the Winter weeks, the hot and cold temperatures are rarely cold, but it doesn’t rain often, however there is always a dense fog that surrounds the city, and last night I was delivering orders for the medical marijuana dispensary and it was incredibly hard to see. The fog was thick and more than 2 areas in the valley had zero visibility. I had a hard time seeing the vehicles in front of me on the interstate. I had a couple of deliveries by the bay and I almost got into an accident. I was driving down the hill and I could not see much at all. Someone was stopped at the bottom for a deer that was crossing the road, but when I finally saw the stopped car, I was only 10 or 20 ft away. I slammed on my brakes and barely missed the other car. I swerved to the left, missing the car and the telephone pole on the corner. I was shaken up, but I continued with the medical marijuana deliveries. When I came back to the dispensary, I told the supervisor that I did not want to take any more deliveries that night. I told her about the accident and my breath was still shaky as I explained the incident, and my hands were shaking as well. The supervisor allowed me to stay in the store the rest of the night.