While it is mostly understood that any time visibility is reduced (fog, smoke, snow, rain, etc) you aught to use your headlights, this answer cannot be more specific unless you specify the locality you are driving in. Laws vary around the world and from jurisdiction to jurisdiction.
The amount of rain that falls in California depends on a few things. You must first know the location and the time of the rain studied.
A cold front as this causes a lot of rain in a short period of time. A warm front causes light rain for days at a time.
The rain was on time
It is illegal to smoke in most 'business use' vehicles such as company cars. But in private vehicles (and HGVs) it is not unlawful. That being said, any time you take your hand of the steering wheel to do anything that isn't directly related to driving, you could be considered to be 'driving without due care and attention'.
the first 5 minutes is the most dangerous time of a rainfall for driving.
30 days
it is that time to rain
When driving in the dark or rain, it's generally recommended to maintain a following distance of at least four to six seconds behind the vehicle in front of you. This increased distance allows for more reaction time in case of sudden stops or emergencies. Adjust your following distance further if conditions are particularly poor, such as heavy rain or low visibility. Always prioritize safety by driving at a speed that allows you to stop safely.
By the time we get to the picnic area, the rain will stop
you have to be 15. then you get ur permit. when you turn 16 you have to wait a certain amount of time before you can start driving without a parent/gurdian in the car.
You have to have a 9 month period of time without any infractions and you must have 60 hrs of driving, 10 of which at night, 6 separate hours with a driving instructor and 30 hours of drivers ed