Irv--
You wrote:
> I could look at some other cities in my plot and sine-wave fit, but so far nobody has suggested a city to try -- Mike, how about your city, where do you live?
Do Santa Cruz, California.
I've lived most of my life in Santa Cruz, California. That's where I used daily records to measure a 38-day lag of midwinter behind the winter solstice, when I defined midwinter as a winter day that has equal summed temperatures for the 2 months before and after it.
Mike Ossipoff
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