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000
FPUS86 KSGX 011822
OPUSAN

ZCZC LAXOPUSAN DEF
OTHER PUBLIC PRODUCTS
NATIONAL WEATHER SERVICE SAN DIEGO, CA
1100 AM PDT WED APR 1 2015

                 APRIL WEATHER IN SAN DIEGO

TEMPERATURES CONTINUE TO RISE SLOWLY THROUGH APRIL AND THE MONTHLY
MEAN OF 60.4 DEGREES IS 2.1 DEGREES ABOVE THAT OF MARCH.  THE
AVERAGE DAILY MAXIMUM IS 67.0 DEGREES AND THE AVERAGE DAILY
MINIMUM IS 56.1 DEGREES.  IN SOME APRILS THERE HAVE BEEN DAYS
WITH HOT, DRY WINDS AND TEMPERATURES WELL IN EXCESS OF 80
DEGREES.  ON 11 SUCH OCCURRENCES, 90 DEGREES OR HIGHER HAS BEEN
RECORDED AT THE NATIONAL WEATHER SERVICE.  THE EXTREMES FOR THE
MONTH ARE 98 DEGREES IN 1989 AND 39 DEGREES IN 1875.

SHOWERS RATHER THAN PROLONGED RAINS HAVE BEEN THE RULE. THESE
HAVE OCCURRED ON AN AVERAGE OF 5 DAYS DURING THE MONTH. NORMAL
RAINFALL FOR THE MONTH IS 0.73 INCH HOWEVER IN 1926 THE EXCEPTIONALLY
LARGE TOTAL OF 5.37 INCHES WAS RECORDED OF WHICH 3.23 INCHES FELL
IN ONE DAY. THIS IS ONE OF THE HEAVIEST 24 HOUR RAINFALL AMOUNTS
EVER MEASURED IN THE CITY. ONLY SIX TIMES SINCE 1850 HAS THE
MONTH BEEN WITHOUT MEASURABLE RAINFALL.

STRONG WINDS HAVE BEEN OF SHORT DURATIONS AND RARELY OVER 30 MPH,
BUT ONCE IN 1915 A VELOCITY OF 46 MPH WAS REGISTERED AT THE
NATIONAL WEATHER SERVICE.

AS A RULE APRIL USHERS IN THE NIGHT AND EARLY MORNING LOW CLOUDS
SO CHARACTERISTIC OF OUR SUMMER AND FALL MONTHS, BUT THE
PERCENTAGE OF SUNSHINE IS LITTLE AFFECTED BY THE CLOUDINESS AND
THE AVERAGE OF 66 PERCENT OF POSSIBLE SUNSHINE IS ONLY SLIGHTLY
BELOW THAT OF THE PRECEDING MONTHS.  CLEAR DAYS AVERAGE 10,
PARTLY CLOUDY 10 AND CLOUDY 10.  THERE IS AN AVERAGE OF 1 DAY OF
HEAVY FOG.  THE RELATIVE HUMIDITY AVERAGES 76 PERCENT IN THE
EARLY MORNING, 60 PERCENT NEAR NOON AND 59 PERCENT IN THE LATE
AFTERNOON.

$$

WATKINS



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