824  
CDUS46 KSGX 190059  
CLIMYF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
559 PM PDT THU SEP 18 2025  
   
...............................
 
 
...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR SEPTEMBER 18 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 83 12:41 PM 101 2020 81 2 72  
MINIMUM 68 1:33 AM 57 2010 64 4 58  
AVERAGE 76 72 4 65  
 
PRECIPITATION (IN)  
TODAY 0.21R 0.01 2023 0.00 0.21 0.00  
MONTH TO DATE 0.26 0.08 0.18 0.00  
SINCE JUL 1 0.33 0.16 0.17 0.01  
SINCE OCT 1 5.62 10.93 -5.31 12.61  
SINCE JAN 1 5.50 7.87 -2.37 11.46  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE SEP 1 0 0 0 1  
SINCE JUL 1 0 1 -1 1  
 
COOLING  
TODAY 11 7 4 0  
MONTH TO DATE 167 150 17 182  
SINCE SEP 1 167 150 17 182  
SINCE JAN 1 747 796 -49 804    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1:00 AM  
LOWEST 62 2:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 91 2020  
MINIMUM TEMPERATURE (F) 63 56 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 6:34 AM PDT SUNSET 6:50 PM PDT  
SEPTEMBER 19 2025.....SUNRISE 6:35 AM PDT SUNSET 6:49 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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