Other Public Products
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
FPUS86 KSGX 042042
OPUSAN

AUGUST WEATHER IN SAN DIEGO

AUGUST IS NORMALLY OUR WARMEST MONTH WITH THE NORMAL HIGH OF 76.4
DEGREES...THE NORMAL LOW 66.7 DEGREES AND THE MONTHLY NORMAL OF 71.6
DEGREES.  EXTREMES SINCE THE ESTABLISHMENT OF THE NATIONAL WEATHER
SERVICE RECORDS IN 1872 WERE 98 DEGREES IN 1955 AND 54 DEGREES IN
1895.  READINGS OF 80 DEGREES OR HIGHER ARE FAR FROM COMMON AND
THERE HAS BEEN ONLY ONE DAY DURING THE ENTIRE PERIOD WITH A DAY OF
95 DEGREES OR HIGHER...A 98 DEGREE READING IN 1955.

RAIN SELDOM FALLS IN THE CITY AND 60 PERCENT OF THE AUGUSTS HAVE
BEEN WITHOUT A MEASURABLE AMOUNT.  THE MONTHLY RAINFALL AVERAGE
IS 0.02 INCH AND THE AVERAGE NUMBER OF RAINY DAYS WITH 0.01 INCH
OR MORE IS ONE.  HOWEVER, IN 1977 THERE WAS 2.13 INCHES FROM THE
REMNANTS OF TROPICAL STORM DOREEN.  ALSO...IN 1873 AND 1854 THERE
WERE 1.95 INCHES AND 1.36 INCHES RESPECTIVELY.  AS IN THE OTHER
SUMMER MONTHS...THUNDERSTORMS ARE RARE.  THE HIGHEST WIND RECORDED
AT THE NATIONAL WEATHER SERVICE BEING ONLY 29 MPH.

USUALLY SKIES BECOME CLEAR BY MID-MORNING AND AS A RESULT SUNSHINE
IS PLENTIFUL WITH A MONTHLY MEAN OF 70 PERCENT OF POSSIBLE SUNSHINE
AND IS THE 6TH SUNNIEST MONTH OF THE YEAR.  CLEAR DAYS AVERAGE 15...
PARTLY CLOUDY 12...CLOUDY 4 AND 1 DAY WITH HEAVY FOG. THERE IS
LITTLE CHANGE IN RELATIVE HUMIDITY FROM JULY, THE AVERAGE BEING 81
PERCENT IN THE EARLY MORNING, 68 PERCENT NEAR NOON AND 66 PERCENT IN
THE LATE AFTERNOON.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.