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Old 11-20-2009, 03:41 PM   #15 (permalink)
harveyc
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Location: Isleton, Calif
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Default Re: Brrr...its cold in San Jose, CA (Nor Cal)

Yea, about 3c. No, winds decrease the chance for frost. I don't understand it very well but Joe Real once explained how heat radiation to outer space draws heat out and forms frost even when air temperatures are above freezing. It happens all the time, most of our frosts occur about 32F (0c). We had about 30 days of frost last year (more than the prior several years combined) but we probably only got down below 32F a few times.
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