There are few hot, muggy summer days anywhere in North San Diego County
because it seldom rains during the summertime. The warmer inland summer
afternoons are accompanied by low (30-60%) relative humidity. The afternoon
humidity is higher near the coast but the temperature is lower and
therefore, the outdoor weather usually remains comfortable throughout the
day.
Annual Precipitation
Average annual precipitation ranges from 9-16 inches (23-41cm) of rain per
year, mostly falling from early November through March.
Storms and Earth Quakes
Hurricanes- We very seldom have hurricanes (last
Recorded, deadly hurricane called a "typhoon" to hit So.
California was in 1939).
Storms- Hailstorms and tornadoes are also extremely rare and, we have
few windy or rainy days. We do have occasional Santa Ana conditions usually
occurring during the months of October through February, where easterly
winds from the desert produce a few warm (sometimes hot) and windy days.
Earthquakes- We are located approximately 30 miles from the nearest
major Earthquake Fault. The USGS (United States Geological Survey) website that was available in 2005,
recorded the last significant earth quake in the San Diego area to have occurred in 1894, its magnitude was 5.75.
The latest USGS records however do not list any San Diego area earthquakes in its list of
"
Historic Worldwide Earthquakes".
Air Quality
Although we experience some infrequent short-term air pollution (seldom
visible), our
Air Quality is
nearly always "Good." Unlike some U.S. cities and other areas of Southern
California, we have very little smog.
Sunshine
The sun shines from approximately 68% of time possible on the coast to
approximately 77% inland. May and June are the months with the least amount
of sunshine. Morning overcast and afternoon sunshine is common along the
coast in the spring and early summer.
Growing Season
The growing seasons range from around 270 days inland to 365 days along the
coast.