411  
CDUS46 KSGX 180926  
CLIFUL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
226 AM PDT THU SEP 18 2025  
   
...............................
 
 
   
..THE FULLERTON AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 17 2025
 
 
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)  
YESTERDAY  
MAXIMUM 92 11:13 AM 100 2020 85 7 76  
MINIMUM 70 6:06 PM 55 2006 65 5 59  
AVERAGE 81 75 6 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00 MM 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.06 -0.06 T  
SINCE JUL 1 T 0.10 -0.10 T  
SINCE OCT 1 4.48 11.78 -7.30 16.56  
SINCE JAN 1 4.45 8.68 -4.23 14.69  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 16 10 6 3  
MONTH TO DATE 212 188 24 239  
SINCE SEP 1 212 188 24 239  
SINCE JAN 1 1169 1211 -42 1173    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 5:00 PM  
LOWEST 34 11:00 AM  
AVERAGE 55  
   
......................................................
 
 
THE FULLERTON AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 97 2020  
MINIMUM TEMPERATURE (F) 65 55 2010  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 6:37 AM PDT SUNSET 6:54 PM PDT  
SEPTEMBER 19 2025.....SUNRISE 6:38 AM PDT SUNSET 6:52 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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