On this date, it does not snow that often in San Francisco, yet on this date in 1887 residents went on a snowball throwing rampage as the city received up to 7 inches of snow. It was the city's greatest snowstorm on record. 

TUESDAY'S WEATHER EXTREMES:
   HIGHEST TEMPERATURE (DEGREES F).........................90 Edinburg, Texas
   HIGHEST HEAT INDEX (DEGREES F)..........................90 Port Isabel, Texas
   LOWEST TEMPERATURE (DEGREES F)..........................-18 Saranac Lake, N.Y.
   LOWEST WIND CHILL (DEGREES F)...........................-62 Mt. Washington, N.H.
   HIGHEST WIND GUST (MPH).................................75 Mt. Washington, N.H.
   HIGHEST PRECIPITATION (INCHES)..........................0.78 Mobile, Ala.