


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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556 CDUS46 KSGX 050030 CLIFUL CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 530 PM PDT SAT OCT 04 2025 ................................... ...THE FULLERTON AIRPORT CA CLIMATE SUMMARY FOR OCTOBER 4 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 76 2:33 PM 99 2014 82 -6 88 MINIMUM 60 4:38 AM 52 2002 61 -1 65 AVERAGE 68 72 -4 77 PRECIPITATION (IN) TODAY 0.00 0.26 2021 0.01 -0.01 0.00 MONTH TO DATE 0.01 0.04 -0.03 0.00 SINCE JUL 1 0.06 0.22 -0.16 T SINCE OCT 1 0.01 0.04 -0.03 0.00 SINCE JAN 1 4.51 8.80 -4.29 14.69 DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 0 0 0 0 SINCE JUL 1 0 0 0 0 COOLING TODAY 3 7 -4 12 MONTH TO DATE 23 28 -5 39 SINCE SEP 1 358 328 30 346 SINCE JAN 1 1315 1351 -36 1280 ................................................................... WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (100) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 4.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 83 3:00 AM LOWEST 51 3:00 PM AVERAGE 67 .......................................................... THE FULLERTON AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 96 2020 MINIMUM TEMPERATURE (F) 61 53 1998 SUNRISE AND SUNSET OCTOBER 4 2025.......SUNRISE 6:49 AM PDT SUNSET 6:32 PM PDT OCTOBER 5 2025.......SUNRISE 6:49 AM PDT SUNSET 6:30 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$