On Sun, 19 Aug 2007 00:03:17 GMT, John F.C. wrote:

I also noticed some of those anomalies leading me to think that some
of those record highs in the 80's aren't correct.

They are probably correct, the Pacific is COLD and if
there is an offshore breeze, you need a jacket. (see average temps)

Most of the cities' record highs for a month such as August I think
are much closer than that. I used Tulsa's record highs for the month
earlier. Hottest August day was 115 in 1936 and the lowest high for
the month was 106 set in 1935.
Mind you, that's 9 degrees difference so, perhaps, that 12
differential above isn't that odd after all.

It isn't odd, it is what should be expected with less than
200 observations.

But there may not be too many places where a lot more
than 200 observations for a day of year has filled in every date
with temperatures nearly the same.