Pomona's Weather
Winters
are mild with days averaging 60 to 75
degrees Fahrenheit and nights about 20 degrees Fahrenheit cooler.
Temperature fluctuations can be quick and unpredictable; December has been
known to vary from 28 to 95 degrees Fahrenheit.
The average annual rainfall is just 14
inches and most of it occurs November to March.
Late spring
is cool and frequently overcast until
mid-day.
Summer
days might begin cloudy, but the skies
usually clear before noon. Early Summer weather is comfortable, ranging
from the low 80s in the daytime to the low 60s at night.
The warmest months of the year can be
August through November, when the hot, dry Santa Ana desert winds
periodically blow in from the east. Temperatures in July, August and
September can range from the high 90s in the daytime to the low 70s at
night. Even though a few 90-degree days may pop up, it usually begins to
cool off in October and November when temperatures return to low 80s in
the daytime and the low 60s at night.
If you have made a reservation for a
campus tour, you will be walking for close to 2 hours and the most
important thing to wear are comfortable walking shoes. For tips on the
rest of your outfit, pick the season you'll be visiting and make a note
of the weather Cal Poly Pomona typically experiences.
