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Clouds and sun; not as warm
Mostly cloudy with a shower
Mostly sunny and cool
of sunlight, then sets at
of moolight, then sets at
There hasn't been any measurable precipitation in San Francisco since April 4. more >
Apr 19, 2014; 5:00 AM ET
Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?