548  
CDUS46 KMTR 010030  
CLISFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
430 PM PST SUN DEC 31 2023  
   
...............................  
 
   
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR DECEMBER 31 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1850 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 57 3:43 PM 67 1958 57 0 59  
MINIMUM 49 2:43 AM 34 1882 46 3 50  
AVERAGE 53 52 1 55  
 
PRECIPITATION (IN)  
TODAY 0.00 5.46 2022 0.15 -0.15 5.46  
MONTH TO DATE 4.65 4.76 -0.11 11.60  
SINCE OCT 1 6.68 8.30 -1.62 12.96  
SINCE JAN 1 27.59 22.89 4.70 15.85  
 
DEGREE DAYS  
HEATING  
TODAY 12 13 -1 10  
MONTH TO DATE 296 386 -90 431  
SINCE DEC 1 296 386 -90 431  
SINCE JUL 1 805 1114 -309 1162  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 103 121 -18 110    
...............................................................  
 
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 71 1996  
MINIMUM TEMPERATURE (F) 46 37 1901  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:25 AM PST SUNSET 5:01 PM PST  
JANUARY 1 2024.......SUNRISE 7:25 AM PST SUNSET 5:01 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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