East Coast weather vs. West Coast weather?
Why, if the following points about Washington D.C. and San Francisco are true…
1. Both cities are on relatively the same latitude line.
2. Both cities sit directly to next to an ocean and a bay.
3. Both cities are essentially at sea level.
…do they have such wildly divergent weather? D.C. is hot, muggy, and unbearable in the summer and cold if not snowy in the winter. San Francisco is perpetually temperate, with an average temperature range of mid-50s to high-70s. What’s the missing link here that makes their climates so different?
This question is in the General Section. Responses must be helpful and on-topic.