


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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428 CDUS46 KSGX 210825 CLISAN CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 125 AM PDT THU AUG 21 2025 ................................... ...THE SAN DIEGO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 20 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1874 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 79 3:24 PM 89 1897 78 1 84 MINIMUM 66 5:23 AM 58 1912 68 -2 68 AVERAGE 73 73 0 76 PRECIPITATION (IN) YESTERDAY 0.00 1.82 2023 0.00 0.00 0.00 MONTH TO DATE 0.00 0.01 -0.01 T SINCE JUL 1 0.00 0.09 -0.09 T SINCE OCT 1 4.56 9.67 -5.11 12.41 SINCE JAN 1 4.42 6.71 -2.29 11.00 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 5 11 -6 6 SINCE JUL 1 0 1 -1 0 COOLING YESTERDAY 8 8 0 11 MONTH TO DATE 97 145 -48 187 SINCE JUN 1 285 397 -112 487 SINCE JAN 1 325 475 -150 488 ................................................................... WIND (MPH) RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (300) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 4.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 12:00 AM LOWEST 56 3:00 PM AVERAGE 75 .......................................................... THE SAN DIEGO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 89 1982 MINIMUM TEMPERATURE (F) 68 58 1877 1884 1916 SUNRISE AND SUNSET AUGUST 21 2025........SUNRISE 6:16 AM PDT SUNSET 7:26 PM PDT AUGUST 22 2025........SUNRISE 6:17 AM PDT SUNSET 7:25 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$