How can it snow in one city and be 80 degrees in another?
The jet stream is your answer. The jet stream is a massive system of air that wraps around the planet. It can pull cold air from the north to the south by creating a low pressure zone. This would cause Texas to be cold. The low pressure zone can also pull warm air up from the south making it warm in LA. Washington state can get snow if the jet stream does two things, pull cold air down from the north and bring moist air in from the ocean. Another reason why it would be snowing in Washington state and be 80 degrees in LA is because Washington state is north of LA. Meaning its colder in Washington state because of its distance from the tropics and LA is warmer because it sits closer to the tropics.
