Re: San Fransisco average temp

Victor--

You wrote:
 
 I picked Alpine sort of at random for the area. A large section of
> west Texas has similar weather patterns.
 
You mentioned Austin and Alpine as places that didn't conform to what I'd said about .75 months to 1.75 months. But, according to the government temperature records that I found, Austin's temperature lags _are_ within that range of values. But, as I said, Alpine has some anomalously short temperature-lags.
 
You continued:
 
I just looked up Marfa and
> Van Horn which have similar patterns. Marfa's peak average high seems
> to be on the cusp between May and June. That "lag" is so small it's
> negative.
 
I'll check that out too.
 
You continued:
 
> My more general point is that this feature you're trying to identify
> -- the peak of hot weather during the year...
 
I interrupt and reply:
 
To infer seasonal timelags from the temperature records, I look at the middle of summer and winter, as shown in the temperature records.
 
You continued:
 
 
 
 -- is not as consistent as
> you're making it out to be.
 
I said that, nearly everywhere throughout the north and south temperate regions, the seasonal timelag (as measured by how much the middle of winter and summer lag behind the solstices) is between .75 and 1.75 months. That means that the usual midrange value of 1.25 months won't be off by more than half a month, except in a few anomalous places. I stand by that statement.
 
You continued:
 
Good grief, San Francisco and Marfa are
> so far apart you'd think they were in different hemispheres. Such is
> not the case, obviously.
 
I reply:
 
I haven't yet had the opportunity to check out Marfa's temperature records, but I will do so at the earliest opportunity. Obviously I can't answer about Marfa before that.
 
San Francisco is a unique sort of anomalous place, with the Sacramento Valley convective "fog-machine" that I spoke of, accentuated by a mountain pass, and the Golden Gate, which channel fog and moist air to San Francisco.
 
You continued:
 
[...]
 
> In short, trying to synchronize a calendar to worldwide temperatures
> is an exercise in futility.
 
You say that, but you don't say how that claim can be reconciled with the near-universal seasonal timelag range of .75 months to 1.75 months, throughout the north and south temporate regions.
 
You continued:
 
Having a period of the right length is
> adequate.
 
I reply:
 
It must be adequate--civilization has survived :-) 
 
But maybe it would be nice to have more than "adquate".
 
You heard Christopher, in Australia. He said that, there, the high south-declination season is considered to arrive with December. What a coincidence--that's also what is said in the U.S., and by writers in England, going back centuries.
 
Likewise when people throughout the temporate zones agree that the high north-declination season arrives with June.
 
Mike Ossipoiff
 
 
 
 

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