Climatological Report (Daily)
Issued by NWS
Issued by NWS
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852
CDUS46 KSGX 190031
CLIFUL
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
531 PM PDT FRI SEP 18 2026
...................................
...THE FULLERTON AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 80 3:49 PM 97 2020 85 -5 84
MINIMUM 64 5:49 AM 55 2010 65 -1 70
AVERAGE 72 75 -3 77
PRECIPITATION (IN)
TODAY 0.00 0.04 2025 0.01 -0.01 0.04
MONTH TO DATE 0.89 0.07 0.82 0.04
SINCE JUL 1 0.89 0.11 0.78 0.04
SINCE OCT 1 16.55 11.79 4.76 4.52
SINCE JAN 1 6.15 8.69 -2.54 4.49
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 7 10 -3 12
MONTH TO DATE 233 198 35 224
SINCE SEP 1 233 198 35 224
SINCE JAN 1 1613 1221 392 1181
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 2.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 5:00 AM
LOWEST 50 3:00 PM
AVERAGE 65
..........................................................
THE FULLERTON AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 96 2016
MINIMUM TEMPERATURE (F) 64 57 2006
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:37 AM PDT SUNSET 6:54 PM PDT
SEPTEMBER 19 2026.....SUNRISE 6:38 AM PDT SUNSET 6:53 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$