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FPUS86 KSGX 010201
OPUSAN

JUNE WEATHER IN SAN DIEGO

TEMPERATURE IN JUNE CONTINUES THE SLOW RISE OF PRECEDING MONTHS
AND THE MEAN OF 66.4 IS 2.4 DEGREES ABOVE THE MEAN FOR MAY.  THE
DAILY MAXIMUM AVERAGES 70.8 DEGREES AND THE DAILY MINIMUM 62.0
DEGREES.  CHANGES FROM DAY TO DAY NORMALLY HAVE BEEN SMALL AND
9 DAYS SINCE 1872 HAVE HAD A MAXIMUM 95 DEGREES OR HIGHER.
THE ABSOLUTE HIGH IS 101 DEGREES IN 1979. THE ABSOLUTE LOW IS 50 DEGREES
WHICH LAST OCCURRED IN 1943.

WELL INTO THE DRY SEASON, JUNE AVERAGES ONLY ONE DAY WITH
MEASURABLE RAIN AND A MONTHLY AVERAGE OF 0.07 INCH.
THE GREATEST MONTHLY TOTAL WAS IN 1990 WITH 0.87 INCH.

JUNE IS A QUIET MONTH AT SAN DIEGO-LINDBERGH FIELD.
STRONG WINDS HAVE NOT BEEN MEASURED AND THE HIGHEST VELOCITY EVER
RECORDED AT THE AIRPORT WEATHER SERVICE OFFICE WAS 27 MPH.
THUNDERSTORMS WILL OCCASIONALLY DEVELOP IN THE MOUNTAINS AND
DESERTS WITH MONSOONAL MOISTURE.

JUNE IS NORMALLY THE CLOUDIEST MONTH OF THE YEAR WITH ONLY 57
PERCENT OF POSSIBLE SUNSHINE DUE LARGELY TO THE PERSISTENCE OF
OVERCAST SKIES DURING THE MORNING HOURS.  CLEAR DAYS AVERAGE 9,
PARTLY CLOUDY 12 AND CLOUDY 9.  THERE IS AN AVERAGE OF 1 DAY OF
HEAVY FOG.  RELATIVE HUMIDITIES SHOW A SLIGHT INCREASE OVER
PREVIOUS MONTHS WITH AVERAGES OF 81 PERCENT NEAR SUNRISE, 69
PERCENT NEAR NOON AND 66 PERCENT NEAR 4 PM.

$$
EMI



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