668  
CDUS46 KSGX 220927  
CLISDM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
227 AM PDT FRI SEP 22 2023  
   
...............................
 
 
   
..THE SAN DIEGO/BROWN CLIMATE SUMMARY FOR SEPTEMBER 21 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 1:07 PM 93 2021 79 -4 81  
MINIMUM 57 2:50 AM 50 2007 60 -3 65  
AVERAGE 66 70 -4 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.05 1999 0.01 -0.01 0.00  
MONTH TO DATE T 0.11 -0.11 0.28  
SINCE JUL 1 1.43 0.16 1.27 0.28  
SINCE OCT 1 17.74 10.16 7.58 9.89  
SINCE JAN 1 13.88 7.07 6.81 5.49  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE SEP 1 1 0 1 0  
SINCE JUL 1 1 2 -1 0  
 
COOLING  
YESTERDAY 1 5 -4 8  
MONTH TO DATE 126 128 -2 246  
SINCE SEP 1 126 128 -2 246  
SINCE JAN 1 592 595 -3 968    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (290)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 59 2:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE SAN DIEGO/BROWN CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 2021  
MINIMUM TEMPERATURE (F) 60 53 2010  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2023.....SUNRISE 6:36 AM PDT SUNSET 6:45 PM PDT  
SEPTEMBER 23 2023.....SUNRISE 6:37 AM PDT SUNSET 6:43 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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