[QUOTE=EdV;653751Also, you can't use historical temps that give you a high temp and high humidity for a given date for the heat index because those two numbers usually did not occur at the same time. i.e. it may have been 78 degrees in the morning with RH of 60 but the afternoon high of 94 might have only had an RH of 38.
For this reason, I would really like to see historical weather data start reporting the heat index high for each day.[/QUOTE]
I always question when records are broken from records set 100 years or more ago. How accurate were their gages then. I especially can't believe the accuracy of barometric pressure and humidity compared to todays digital instruments.
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Les
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